We struggled with audio real bad in our first few episodes. Lav mikes did the trick, and continue to help, but they too have their limitations. Thanks for the awesome suggestions! And congrats having this video on trending!! #28!
The only time I ever use automatic audio gain control is when I'm in the field shooting random stuff and you can't control the audio environment. Auto gain control sucks arse with aircon and next door office noises I get in my lab.
1. You can match up the waveforms of camera mic and external mic in post, it gives frame perfect sync and takes one minute 2. You can use dynamic processing to simply remove noise alltogether
Hey there! Great funny video. I'm a sound engineer and I can confirm that you're right on everything here. Lavalier mics are used since at least 35 years in the movie industry and they're still quite expensive if we want excellent sound quality (still more than a thousand US dollars for professional mic + transmitter + receiver).
Nifty tip for the whole "using another microphone" thing: start recording with the external mic, and start recording on your camera. Make a loud sound of some kind and wait a few seconds and then start acting like you normally would. This will create a visible spike in the audio waveform from both the camera audio and the external mic audio that will be easy to identify in post, and will also serve as the point of alignment for the external mic audio to line up with the video footage perfectly. They do this all the time in actual movies too. The "clapper" as it's been called that you see in all those behind the scenes clips for movies serves a very specific purpose. Specific scene information is written on the clapper (scene number, shoot number, camera angle, etc). This gives editors the ability to take a glance at the video thumbnail to quickly identify the particular clip they are looking for, but it also serves another purpose. It's called the clapper because it opens and slams down. This action creates a very loud sound, and is used to sync externally captured audio to the video. Is it more work? Yeah, even if you take these measures it is still tedious especially if you record the same thing more than once. But if you keep up with your audio recordings and delete the ones you don't want, you can keep a consistency going where the first audio track goes with the first video file, and the second audio track for the second file, and so on and so forth.
Just be loud and proud! (I also often tend to talk loudly in my videos) You could always make audio files from the video files, then use an audio editor like Audacity to remove the noise, then put the video from the camera and the audio from the processed audio files together in what ever editor you use, I used to do something like that and it works wonders.
Close micing also reduces the amount of room reflections on the recording since the input signal source is closer to the microphone and thus allows for you to keep the recording volume lower (attenuating everything, including the hardware noise and acoustical noise, etc), it's useful for untreated rooms with alot of reverberating surfaces. The only thing you want to watch out for is to not go too close to actually mess up the tonal characteristics of the voice. Good practice is to always keep the recording level as low as possible while still getting acceptable peaks. You can always increase the volume in post processing phase and even compress the audio to get rid of significant fluctuations between the peak levels, but you cannot remove distortion caused by clipping which is introduced when micing at a too high recording level and accidentally "pushing over the limit". Those shotgun mics are often used for field recording since they are quite directional (which helps in areas with alot of ambient noise like traffic, people, whatever), but they require an extra pair of hands (like news reporting teams, they have a camera dude, the reporter and a microphone dude whose pretty much sole purpose is to stand outside of the camera's viewing angle and hold a microphone stand above the reporters head with the microphone pointing down towards the reporter, you've all seen those sketches where the microphone itself accidentally lowers in to the camera view because the sound guy cannot do his job). For videos like the ones whre you need to move around a bit more, a lapel mic would be a good choice.. For the ones where you stay a bit more still you could get away with something else and if you're worried about the changing volume levels caused by moving around, those can be fixed in post processing very quickly and easily to a certain extent =) I imagine you knew most of this ElectroBOOM but the long ass comment was aimed mostly for people struggling with sound stuff! As a post scriptum I'd like to add that in my personal opinion pristine sound and image quality are not a requirement for quality vids. There's alot of channels I watch with very modest audio and video quality but the content itself is diamond, that's enough to make me entertained and stick around and if you think about it; people watch alot of stuff with absolutely horrible production quality, stuff shot in portrait orientation on a smartphone without any external tools can still amass millions of views and thousands of interactions! Anyways enough of that, good pointers in the video and engaging content as always!
Glad to see you talking about gain structure in this video. That's something many professional audio engineers don't comprehend. Really excited to see your DIY wireless rig. Will you be able to tune it to different frequencies? That's really important for preventing RFI. And also not breaking FCC laws.
Extremely informative. It's basically like handling a DSLR camera. There are similar concepts in both of them. Take a brightly lit photo so that you can take a low ISO shot (Similar to high gain near the source). Fixed aperture photo with thin focus area (Sitting at a fixed position from the mic for best audio but low mobility)
I tried to say this to a channel that was talking about choices they were making to support the drones, hq audio/video, editing ... that isn't what makes a channel great and worth watching, it misses the point completely about truly long term successful channels. ElectroBOOM's video we are on, BigCliveDotCom records/recorded with an iPad mounted above a table, SouthMainAuto works out of a real shop without a camera man or fancy-ness ... the quality of their content and the amazing personalities is what makes the channel. There are a ton of great content producers who have what some would consider low budget equipment, which is the whole point. Let the content and your personality shine through and people will flock to you, long term. No need to go clickbait titles and thumbnails either. Just be yourself and make videos about things you have passion for and let the rest come. I love creators like our friend here. The world is a better place for people like this sharing their love and passion with the rest of us :)
I honestly like having that room echo, especially for his type of videos (face, showing room as BG, etc) it shows the scale of his magnificence as if he is a god. Videos with warm clean audio make sense for those videos that just show hands and clean white backgrounds. There is a charm to shitty audio.
Dear Mehdi, thanks a lot for this guide for good audio. I bought a microphone to record audio for my youtube channel, but either the noise was horrible when I turned the gain high enough to get any sound at all, or I turned the gain low so the volume was too low to be usable. I got myself a kit for a cheap microphone pre-amp from elv.de (because doing kits is harder than ready-made, and making mistakes is fun!) and presto! now it works fine, low noise and good loudness. You are awesome!
Clapping your hands once at the start of your recording makes it fairly easy to sync separate audio and video tracks. You get a peak in the audio track that you can easily visually match with the frame where your hands touch.
This video actually works as a grade comparison for different mics… I would expect to see this on something like captain disillusion 101 series. TYL for this! It was fun.
I fully support you buying a new LAVALIÉÉÉR microphone, it IS great! I have a SmartLav+ from Rode, you can plug it into your smartphone, and voilá, you're mobile now. I think you can downoad a program to stream the audio to your program or else you can just record it in your phone, than transfer to your PC. COME ON is not so hard to sync audio :P!
I've just been spending the past few spare evenings going through your videos. I love this one and how honest you are. Especially about 'overcoming your phobias' when doing videos, promoting you to feel the need to shout. The explanation of the mic amps and the need to get them closer to the source was great. You should be a teacher. (You sure had a good one!) I know this is an old video to you. But not to me. You are helping me to re-energise my passion for electronics. Ever since I was about 8 years old, when I wired up my uncle's big speaker wires to a plug and shoved it in the wall socket. That was the moment I understood electricity. Kind of. I "heard" electricity for the first time, for just a moment. It was exciting. Many shocks later, I prefer software these days. (tsk! p*ssy!) :) Anyway, keep it up! I have so many more to go until I catch up. Cheers!
Dude, even at 1.7M subs, you deserve more. Dunno why I've never heard of your channel until tonight. All of your content is the type of videos I search for almost nightly. Fuckin personalized TH-cam suggestions my ass!!
Thats so interesting what you said about being afraid people might overhear you making a video and then u eventually got more comfortable. Thats so cool!
Consider using Audacity (Open Source) to filter out background noise (Noise Reduction effect). You just sample a few seconds of the background noise and then voila!
Jerry Janes can't he also use Audacity to take out the background noise by recording minutes straight of the white noise made by the camera and then putting it with the audio recording of the video and using the "Invert" effect? Edit: after reading what you said twice, I realize what I said might have been exactly what you meant.
Nick Weissmann If by background noise you mean the hiss, phase inversion does not work. The waveform of the noise pattern would have to, bit by bit, exactly match the background noise. But essentially, at every sample of "silence + noise" the A/D converter takes, it would always be some extremely random value. Heisenberg taught us that you can never perfectly measure, well, anything really. The loss of precision is essentially noise. It isn't so much a signal as it is a non-signal, really. Audacity's (and Audition's) noise removal instead works mostly by filtering and compressing, which is why you shouldn't overdo the noise removal. And pretty much anybody who wishes to repair recordings ruined by noise with these will definately appreciate having low noise recordings from quality mics through quality preamps and converters in the first place, with as low of a SNR as possible.
there are also noise reduction programs that take an fft of the noise and then reduce those bands by the amount present in the noise. This can sometimes create phasing artifacts but that can be managed by adjusting the fft size as well as having the filter only kick on when there is no voice present.
Mehdi, I have free some audio production tips for you to get the best sound! As you noted in your section about gain staging, disable camera gain and get the overall signal to around -12dBFS or less on your camera's input meter. Don't let it get near 0dBFS or you'll have clipping and crappy sound at the input stage that you can't get rid of. A safe range is down near -18dBFS which should give you plenty of headroom for louder sounds to come through without clipping. The real trick I wanted to mention is to add an *audio compressor* effect in post-production which will even out your loud peaks vs your quiet parts, roughly the same as what the auto gain control was doing for you in the camera, but not baking it in to your audio track, and sounding a hell of a lot better. Use whatever audio compressor effect you can find that may be built in to your video editor. Most production tools should have one. It might be called something like a dynamics compressor. Some tips on how to actually use a compressor: bring the threshold down to just below your quietest speaking volume, use a ratio of around 3:1, a soft knee, attack time around 10ms, release time around 100ms, and add make-up gain to bring the reduced level back up to about where it was without the compression. Play around with the release time and threshold level to find a sound that suits you. If the compressor has a gain reduction meter, make sure it does not go beyond 6dB of compression for best results. Best to stay within the 2-4dB range. Hope that helps!
@ElectroBOOM - I also recommend adding compression, either software based when you put your clips together or have a hardware compressor. It will help the sound quality overall and should assist with removing a bit of the white noise.
Build a humbucking microphone chain for noise cancellation . Take 2 mics, connect them in line with reverse phase, place 1 in front of you, the second mic in the coroner of the room.
Sorry for the long comment, but I found this video really interesting because of something I just discovered recently. I have one of those bluetooth FM transmitters in my car to play music from my phone. When I first tried using it, there was a lot of background white noise, and the music sounded bad. I thought that adjusting my phone volume and radio volume to be about the same would give the best quality. I tried it, but it didn't work. It was slightly better, but still bad. Just from playing with it, I found that turning my phone volume all the way up and then adjusting the radio volume as necessary worked best. I didn't understand why, but now it makes sense. If I understood correctly, each stage of the amplification doesn't just amplify the noise from the input. It adds its own noise that is independent of its gain (at least approximately) and that noise gets amplified by subsequent stages. Thanks for explaining that! There is one other thing I noticed, and I'm not sure how it is related. Earlier, when I said that the music was sounding "bad", what I meant was that it sounded screechy. The high frequencies were being amplified, and the low frequencies were being attenuated. Is it possible that turning my radio volume up too loud caused the amplifier circuit to act like a high pass filter?
Try framing multiple layers of towels in a wooden frame to prevent echo. It works just as well as audio foam, it's cheaper, you can wash it, you can paint a picture over it, you can hang it up on the wall!
Very nice video, this is also how the pre-amplifier in ultrasound imaging works, the amplifier should be placed very close to the sensor to reduce the noise.
No doubt!! But Cooledit Pro now called Adobe Audition does audio including noise reduction gate/compressor/envelope _like no other_ AND even does audio/video layers or ripping audio from any video file. same with VLC .
You went into gain control on the mic, and camera, and even 'hinted' at a pre-amp, but didn't specifically say "Pre-amp"! You plug your mic into a pre-amp, then into the camera, which will be the BEST option for reducing noise for in-camera sound. (The chart you're doing at 8:00min, #1 will be the pre-amp, with the rest of the chain on the lowest gain.) You control the gain with the pre-amp. JuicedLink pre-amps can be found on eBay for under $100!
You could just record everything on minimum gain and use a limiter afterwards to raise volume near 0dB. Or use an "inverted" audio compressor, to only allow noise over "x"dB to be heard. Like skype voice chat has for picking up voice
Sorry that I comment over 2 year old video and am too lazy to read all comments that may say same thing, but you are more funnier when you yell. Your videos bring back to memories when I was in comprehensive school and vocational school when I was learning auto mechanics. I know too many people that thinks that auto mechanics doesnt need to know electronics because its only mechanics :D . (sorry from grammar errors, but english is basically my 3rd language)
I recently bought a Samson C03U microphone, instead of the Lav microphone I used. The only downside is the thing you also mentioned: now I have to add the audio to the video separately. Although it is a little bit more work, I think it is worth it, because the quality of the microphone is really good and I don't have any background noise anymore. Thanks for sharing this. I really like your solution. :)
I like to use two wireless lavalier microphone systems when there are two people being recorded. I use a Y splitter into the audio recorder so each person is being recorded on separate channels (one on left, the other on the right.) Makes it a lot easier when editing. Then convert to mono before compositing it into the video. You also record the audio on the camera and most modern video editing software can auto sync the two audio sources. Then you mute (or remove) the audio on the video. It can be a little tricky the first few times you try it but once you figure it out it is actually pretty simple.
Hi Mehdi. Have you ever tried surrounding your camera or mic with a baffle? It's a real low-tech method I use to cut down on noise outside and some echo inside. I have a MUCH lower budget setup than you and find that taping cardboard or plastic around the sides of the camera (for on camera mics) reduces the background noise when recording outside as well as some reflections/echo when recording inside. It kind of makes the mic directional to some extent. Extend the plastic/cardboard from the sides of the camera and as far out in front as possible w/o seeing the baffle in the shot. It's not the end all solution but works to some extent.
Really interesting to see how you have solved thees problems! I might use this in my videos now. Thanks!
Cody'sLab ello there
Cody'sLab audacity noise compression is also useful cody
Cody I just can't picture you yelling at the camera :p TH-cam would probably demonetize you anyways for hurting bug ears or something.
Yess. YESS. Cody has made an error in typing! Brothers! Come out of the shadows! They time has come to attack!! For Cody is no god.
retreat! Newtsniper has also made an error! Our attack has failed!
I have the same camera and I struggle with this all the time, this video was super helpful! Thank you!
Woah it's you!!!
Hello Ur machine burp baby machine has got broken NOW THE BABY IS VOMITING
Technically any mic that you use would be a BOOM mic.
I'll see myself out.
Sure, sure, just use the cat door, as agreed... ;]
VariXx Don't give up your day job...
VariXx you better
Always add a boompole.
Who else kept looking at the clock behind him?? Holy shit it took him aprox 4 hours to make this video
I always do
Editing and post processing time is even more to calculate
Love the video. I've done several videos on mics, sound quality, and sound processing, so this really *resonated* with me.
Tommy Callaway I saw what you did there :D
We struggled with audio real bad in our first few episodes. Lav mikes did the trick, and continue to help, but they too have their limitations. Thanks for the awesome suggestions! And congrats having this video on trending!! #28!
I always thought the yelling was part of the charm of your videos
Kyle Smith I think it's both😂
It became the charm
Mehdi, I love the way you teach how electronics works and how it can solve some (not always) trivial problems. Please, keep the good work!
The only time I ever use automatic audio gain control is when I'm in the field shooting random stuff and you can't control the audio environment. Auto gain control sucks arse with aircon and next door office noises I get in my lab.
Big fan Dave!
Is that noise math ok? In my incoherent noise world 1+1=sqrt (2)
Hey Dave!
lol its dave
"One shall strive to get out of the closet."
Noted.
@SmellsOkay no u
im in my closet rn
WrIte ThAT DOwN!
:)
But it’s comfortable and cozy in my closet. I think I’ll stay.
As a hobbyist musician, this is actually super useful information, thanks!
1.2 million subscribers?
Now it is 2.1 million!
REVERSE
I think you mean 3.08 million
Now it is 3.1
3.27M now
@@randomdude9135 3.56 milliamps
3.7 M
1. You can match up the waveforms of camera mic and external mic in post, it gives frame perfect sync and takes one minute
2. You can use dynamic processing to simply remove noise alltogether
"Can you imagine recording two things and combining them in post processing?!" LOLOL, this is literally my entire job rn
That’s what I’m doing to record drums lmao
I record the left channel & right channel simultaneously & individually
You have re-discovered Friis formula!
And also he explained why we should keep LNA near to the antenna :P
The idea is ok.. But gaussian noise can't be added linearly. It requires square root summation.
ive been watching ElectroBOOM for a year AND I STILL HAVENT SUBSCRIBED YET!
aight done.
Hey there! Great funny video. I'm a sound engineer and I can confirm that you're right on everything here. Lavalier mics are used since at least 35 years in the movie industry and they're still quite expensive if we want excellent sound quality (still more than a thousand US dollars for professional mic + transmitter + receiver).
Nifty tip for the whole "using another microphone" thing: start recording with the external mic, and start recording on your camera. Make a loud sound of some kind and wait a few seconds and then start acting like you normally would. This will create a visible spike in the audio waveform from both the camera audio and the external mic audio that will be easy to identify in post, and will also serve as the point of alignment for the external mic audio to line up with the video footage perfectly.
They do this all the time in actual movies too. The "clapper" as it's been called that you see in all those behind the scenes clips for movies serves a very specific purpose. Specific scene information is written on the clapper (scene number, shoot number, camera angle, etc). This gives editors the ability to take a glance at the video thumbnail to quickly identify the particular clip they are looking for, but it also serves another purpose. It's called the clapper because it opens and slams down. This action creates a very loud sound, and is used to sync externally captured audio to the video.
Is it more work? Yeah, even if you take these measures it is still tedious especially if you record the same thing more than once. But if you keep up with your audio recordings and delete the ones you don't want, you can keep a consistency going where the first audio track goes with the first video file, and the second audio track for the second file, and so on and so forth.
Just be loud and proud! (I also often tend to talk loudly in my videos) You could always make audio files from the video files, then use an audio editor like Audacity to remove the noise, then put the video from the camera and the audio from the processed audio files together in what ever editor you use, I used to do something like that and it works wonders.
"high quality audio is very important in a video"
(records all his commentary in this non-damped room)
This is gonna be good.
Yep, especially that majestic uni-brow
Close micing also reduces the amount of room reflections on the recording since the input signal source is closer to the microphone and thus allows for you to keep the recording volume lower (attenuating everything, including the hardware noise and acoustical noise, etc), it's useful for untreated rooms with alot of reverberating surfaces. The only thing you want to watch out for is to not go too close to actually mess up the tonal characteristics of the voice. Good practice is to always keep the recording level as low as possible while still getting acceptable peaks. You can always increase the volume in post processing phase and even compress the audio to get rid of significant fluctuations between the peak levels, but you cannot remove distortion caused by clipping which is introduced when micing at a too high recording level and accidentally "pushing over the limit".
Those shotgun mics are often used for field recording since they are quite directional (which helps in areas with alot of ambient noise like traffic, people, whatever), but they require an extra pair of hands (like news reporting teams, they have a camera dude, the reporter and a microphone dude whose pretty much sole purpose is to stand outside of the camera's viewing angle and hold a microphone stand above the reporters head with the microphone pointing down towards the reporter, you've all seen those sketches where the microphone itself accidentally lowers in to the camera view because the sound guy cannot do his job).
For videos like the ones whre you need to move around a bit more, a lapel mic would be a good choice.. For the ones where you stay a bit more still you could get away with something else and if you're worried about the changing volume levels caused by moving around, those can be fixed in post processing very quickly and easily to a certain extent =)
I imagine you knew most of this ElectroBOOM but the long ass comment was aimed mostly for people struggling with sound stuff! As a post scriptum I'd like to add that in my personal opinion pristine sound and image quality are not a requirement for quality vids. There's alot of channels I watch with very modest audio and video quality but the content itself is diamond, that's enough to make me entertained and stick around and if you think about it; people watch alot of stuff with absolutely horrible production quality, stuff shot in portrait orientation on a smartphone without any external tools can still amass millions of views and thousands of interactions!
Anyways enough of that, good pointers in the video and engaging content as always!
Glad to see you talking about gain structure in this video. That's something many professional audio engineers don't comprehend. Really excited to see your DIY wireless rig. Will you be able to tune it to different frequencies? That's really important for preventing RFI. And also not breaking FCC laws.
Such a hilarious yet informative way to explain audio gain staging. Well done!
I like the content, but I stay for the Unibraw!
I was gonna say that!
This dude knows his stuff. Props. And the high energy keeps it entertaining.
7:36 why i watch this channel
The Nocturnal Alchemist soso
I had a good laugh at that scene
I dont get it
Also 6:29 XD
Looks like Louis Rossmann. Anyone?
Extremely informative. It's basically like handling a DSLR camera. There are similar concepts in both of them. Take a brightly lit photo so that you can take a low ISO shot (Similar to high gain near the source). Fixed aperture photo with thin focus area (Sitting at a fixed position from the mic for best audio but low mobility)
3:39 “Echo Friendly” definitely not eco friendly too.
XDDDDDDDDD
I laughed my ass off when he said that
Nice
Dude, the echo is what makes your vids unique!!!
I tried to say this to a channel that was talking about choices they were making to support the drones, hq audio/video, editing ... that isn't what makes a channel great and worth watching, it misses the point completely about truly long term successful channels.
ElectroBOOM's video we are on, BigCliveDotCom records/recorded with an iPad mounted above a table, SouthMainAuto works out of a real shop without a camera man or fancy-ness ... the quality of their content and the amazing personalities is what makes the channel. There are a ton of great content producers who have what some would consider low budget equipment, which is the whole point. Let the content and your personality shine through and people will flock to you, long term. No need to go clickbait titles and thumbnails either. Just be yourself and make videos about things you have passion for and let the rest come.
I love creators like our friend here. The world is a better place for people like this sharing their love and passion with the rest of us :)
Your majestic unibrow is incredible, Mehdi. Don't ever change, my friend! You are the best.
ElectroBOOM can't possibly make videos that are too long. I'd totally watch an hour long of this educational madness.
Mehdi Sadagdhar Thanks a lot for your videos! As a token of appreciation, I've whitelisted your channel in Adblock : )
Love from India!!
Very cool to see a touch of audio engineering on this channel. Gain stages are a good place to start, and I hope you've got more coming.
7:50
And then I got an ad about a
LAPEL LAVALIER.
Thanks for teaching me about video volumes in filming cameras 📷
Finally i found a video🤗 where he didn't get shocked by current
sowdish reddy arumalla I didn't realize that until now!!!
I honestly like having that room echo, especially for his type of videos (face, showing room as BG, etc) it shows the scale of his magnificence as if he is a god.
Videos with warm clean audio make sense for those videos that just show hands and clean white backgrounds. There is a charm to shitty audio.
Nothing exploded.
Disappointed.
😂😂😂
OHg XD!!!!
666
@Memesoon And The Memes Of Drestruction same
Great expectation! I look forward to the wireless microphone video!
The mighty *UNIBRAAAAAHH*
Holy shit did you break TH-cam?
He's probably a Patreon, they get early access to the videos.
Ajay Wurie TH-cam's drunk....😂😂😂
FOOOOOOOOOOOL BREEEEEEEEEEEEEEJ EYEBROW
skidmf Correct. 🤓
And this is why we have mixing engineers! Happy to help.
1:43 Using my Lip reading, he said "This is a piece of ----"
Shit
@@souviksen7957 Yeah
Sheet
I thought it was 'it's a piece of junk'
Its more like him talking to ur soul
For years i searching for a solution for audio problem, then i found this. Highly informative. Thank you!
3:09 btw there is a button to sync them automatically
(Adobe premiere pro)
Yeah but it works like 0% of the time
@@bakonpancakz 😂😂😂
Dear Mehdi,
thanks a lot for this guide for good audio. I bought a microphone to record audio for my youtube channel, but either the noise was horrible when I turned the gain high enough to get any sound at all, or I turned the gain low so the volume was too low to be usable. I got myself a kit for a cheap microphone pre-amp from elv.de (because doing kits is harder than ready-made, and making mistakes is fun!) and presto! now it works fine, low noise and good loudness. You are awesome!
You’re on 23 on trending
Clapping your hands once at the start of your recording makes it fairly easy to sync separate audio and video tracks. You get a peak in the audio track that you can easily visually match with the frame where your hands touch.
Love how facetious and informative these always are :)
"One should always strive to get out of the closet..." LOL [3:29]
This video actually works as a grade comparison for different mics… I would expect to see this on something like captain disillusion 101 series. TYL for this! It was fun.
I fully support you buying a new LAVALIÉÉÉR microphone, it IS great! I have a SmartLav+ from Rode, you can plug it into your smartphone, and voilá, you're mobile now. I think you can downoad a program to stream the audio to your program or else you can just record it in your phone, than transfer to your PC.
COME ON is not so hard to sync audio :P!
Fuck Rode.
How do you plug it into your phone??
4,5 to 6,0 mm jack converter. :)
The SmartLav+ already works with phone jacks. You need an adapter to make it work with your PC.
Pesteran aqui kkk
I've just been spending the past few spare evenings going through your videos.
I love this one and how honest you are. Especially about 'overcoming your phobias' when doing videos, promoting you to feel the need to shout.
The explanation of the mic amps and the need to get them closer to the source was great. You should be a teacher. (You sure had a good one!)
I know this is an old video to you. But not to me.
You are helping me to re-energise my passion for electronics.
Ever since I was about 8 years old, when I wired up my uncle's big speaker wires to a plug and shoved it in the wall socket. That was the moment I understood electricity. Kind of. I "heard" electricity for the first time, for just a moment. It was exciting. Many shocks later, I prefer software these days. (tsk! p*ssy!) :)
Anyway, keep it up! I have so many more to go until I catch up.
Cheers!
Cool that he recorded a clock on the background you can see how much time it took to record each part xD
Looks like about 11AM-3pm for recording. So that's like 2:30 per 60:00 ...
osearth esp Maybe he had lunch inbetween.
More like 2hrs and 55min for a 10+min video. Love it!
When you realized you accidentally muted yourself in a ps4 party chat and you try to talk to your friends 1:43
😆
He said "you peice of shit"
I am a great fan of u ..i am from India
send ne a picture of virginia
Just a meme playing on stereotypes of indians, older men in particular.
Dude, even at 1.7M subs, you deserve more. Dunno why I've never heard of your channel until tonight. All of your content is the type of videos I search for almost nightly. Fuckin personalized TH-cam suggestions my ass!!
Premiere Pro makes syncing audio easy, that is the primary way most people handle this, cameras suck at audio
Thank you very much man, I put a lot of effort in, and comments like that make it worth the time and money!
Yeah I use a Zoom, a clapper board, and some video editing software. Most half decent ones let you lock video and audio together to survive cuts etc
Thats so interesting what you said about being afraid people might overhear you making a video and then u eventually got more comfortable. Thats so cool!
Always incredibly informative and entertaining. I really hope you continue to see success.
the gain stages explanation was actually very useful, thanks!!
Consider using Audacity (Open Source) to filter out background noise (Noise Reduction effect). You just sample a few seconds of the background noise and then voila!
Jerry Janes can't he also use Audacity to take out the background noise by recording minutes straight of the white noise made by the camera and then putting it with the audio recording of the video and using the "Invert" effect?
Edit: after reading what you said twice, I realize what I said might have been exactly what you meant.
Nick Weissmann Yeah that is basically what it does, but since the background noise is usually quite stable a sample of a few seconds is enough.
Ditto. You can adjust the sensitivity to result with a quality you prefer.
Nick Weissmann If by background noise you mean the hiss, phase inversion does not work. The waveform of the noise pattern would have to, bit by bit, exactly match the background noise. But essentially, at every sample of "silence + noise" the A/D converter takes, it would always be some extremely random value.
Heisenberg taught us that you can never perfectly measure, well, anything really. The loss of precision is essentially noise. It isn't so much a signal as it is a non-signal, really.
Audacity's (and Audition's) noise removal instead works mostly by filtering and compressing, which is why you shouldn't overdo the noise removal. And pretty much anybody who wishes to repair recordings ruined by noise with these will definately appreciate having low noise recordings from quality mics through quality preamps and converters in the first place, with as low of a SNR as possible.
there are also noise reduction programs that take an fft of the noise and then reduce those bands by the amount present in the noise. This can sometimes create phasing artifacts but that can be managed by adjusting the fft size as well as having the filter only kick on when there is no voice present.
my power company has cut off my power and thanks to you i knew how to power her o 2 machine for her emphysema and it saved her life.
07:02 - [Gamers in public lobbies who *don't* use push-to-speak]: "Seems fine."
Mehdi,
I have free some audio production tips for you to get the best sound! As you noted in your section about gain staging, disable camera gain and get the overall signal to around -12dBFS or less on your camera's input meter. Don't let it get near 0dBFS or you'll have clipping and crappy sound at the input stage that you can't get rid of. A safe range is down near -18dBFS which should give you plenty of headroom for louder sounds to come through without clipping.
The real trick I wanted to mention is to add an *audio compressor* effect in post-production which will even out your loud peaks vs your quiet parts, roughly the same as what the auto gain control was doing for you in the camera, but not baking it in to your audio track, and sounding a hell of a lot better. Use whatever audio compressor effect you can find that may be built in to your video editor. Most production tools should have one. It might be called something like a dynamics compressor.
Some tips on how to actually use a compressor: bring the threshold down to just below your quietest speaking volume, use a ratio of around 3:1, a soft knee, attack time around 10ms, release time around 100ms, and add make-up gain to bring the reduced level back up to about where it was without the compression. Play around with the release time and threshold level to find a sound that suits you. If the compressor has a gain reduction meter, make sure it does not go beyond 6dB of compression for best results. Best to stay within the 2-4dB range. Hope that helps!
3:42 who noted= echo friendly
@ElectroBOOM - I also recommend adding compression, either software based when you put your clips together or have a hardware compressor.
It will help the sound quality overall and should assist with removing a bit of the white noise.
When he pronounced "mic" as "mick" several times in a row lmao
Build a humbucking microphone chain for noise cancellation .
Take 2 mics, connect them in line with reverse phase, place 1 in front of you, the second mic in the coroner of the room.
Just use automatic gain and run your final audio track through a gate + compressor. Voila!
smacksmashen
Compression in post doesn't really help. Anything that clips is lost information.
Sorry for the long comment, but I found this video really interesting because of something I just discovered recently. I have one of those bluetooth FM transmitters in my car to play music from my phone. When I first tried using it, there was a lot of background white noise, and the music sounded bad. I thought that adjusting my phone volume and radio volume to be about the same would give the best quality. I tried it, but it didn't work. It was slightly better, but still bad. Just from playing with it, I found that turning my phone volume all the way up and then adjusting the radio volume as necessary worked best. I didn't understand why, but now it makes sense. If I understood correctly, each stage of the amplification doesn't just amplify the noise from the input. It adds its own noise that is independent of its gain (at least approximately) and that noise gets amplified by subsequent stages. Thanks for explaining that! There is one other thing I noticed, and I'm not sure how it is related. Earlier, when I said that the music was sounding "bad", what I meant was that it sounded screechy. The high frequencies were being amplified, and the low frequencies were being attenuated. Is it possible that turning my radio volume up too loud caused the amplifier circuit to act like a high pass filter?
02:00
It scared the shit Outta me 😹😹😹
Try framing multiple layers of towels in a wooden frame to prevent echo. It works just as well as audio foam, it's cheaper, you can wash it, you can paint a picture over it, you can hang it up on the wall!
"One shall always astrive to get out of the closet. Take note of that."
Listen man, I'm working on it XD
dude.
You make so awesome videos. No matter the mood, you brighten up my day. Your humor is flawless.
Keep it up!
6:46 - 6:50 most people pronounce mic as mike, not mick, just sayin
*shotgun mick*
Very nice video, this is also how the pre-amplifier in ultrasound imaging works, the amplifier should be placed very close to the sensor to reduce the noise.
Pro tip: You can split audio from the recording and remove noise in audacity
No doubt!!
But Cooledit Pro now called Adobe Audition does audio including noise reduction gate/compressor/envelope _like no other_ AND even does audio/video layers or ripping audio from any video file. same with VLC .
You went into gain control on the mic, and camera, and even 'hinted' at a pre-amp, but didn't specifically say "Pre-amp"! You plug your mic into a pre-amp, then into the camera, which will be the BEST option for reducing noise for in-camera sound. (The chart you're doing at 8:00min, #1 will be the pre-amp, with the rest of the chain on the lowest gain.) You control the gain with the pre-amp. JuicedLink pre-amps can be found on eBay for under $100!
"One shall always strive to get out of the closet." - Mehdi, 2k17.
Sai Scouser Anand I mean we could go back in it if you want...
I love your videos, they're funny as all hell and great and insightful.
You could just record everything on minimum gain and use a limiter afterwards to raise volume near 0dB.
Or use an "inverted" audio compressor, to only allow noise over "x"dB to be heard. Like skype voice chat has for picking up voice
Glad you got your monitization back.... You fukkin rock, dude!
Or you can just use audacity to remove literally all the white noise :D
The USB separate recording was excellent. Just make sure you sync better
It’s extremely disturbing to see someone speak and actually hear them with the post production microphone at the same time
Sorry that I comment over 2 year old video and am too lazy to read all comments that may say same thing, but you are more funnier when you yell. Your videos bring back to memories when I was in comprehensive school and vocational school when I was learning auto mechanics. I know too many people that thinks that auto mechanics doesnt need to know electronics because its only mechanics :D . (sorry from grammar errors, but english is basically my 3rd language)
Just what I needed. I used to always fix my audio in post via audacity but man... I'm super lazy.
This is a good technique I shall adopt for my guitar videos
No! Don't stop yelling! You're my favorite angry Iranian-Canadian!
I recently bought a Samson C03U microphone, instead of the Lav microphone I used. The only downside is the thing you also mentioned: now I have to add the audio to the video separately. Although it is a little bit more work, I think it is worth it, because the quality of the microphone is really good and I don't have any background noise anymore. Thanks for sharing this. I really like your solution. :)
He...doesn't hurt himself here? :(
Only emotionally.
I'm Shocked.
Michael Declet but he isn't..
What an awesome personality. Mr. Boom has a good channel.
1:46 look at the clock... did he just time travel
we all time travel... at 1 second per second ;).
I like to use two wireless lavalier microphone systems when there are two people being recorded. I use a Y splitter into the audio recorder so each person is being recorded on separate channels (one on left, the other on the right.) Makes it a lot easier when editing. Then convert to mono before compositing it into the video. You also record the audio on the camera and most modern video editing software can auto sync the two audio sources. Then you mute (or remove) the audio on the video. It can be a little tricky the first few times you try it but once you figure it out it is actually pretty simple.
Or you could just tape the shotgun microphone to your camera like a caveman. It's crude, but effective.
mustapha supas use black tape and you look like a pro
MadiCat247 we learn so much from ElectroBoom.
the shotgun has a hot shoe mount, why would he need to tape it?
Hi Mehdi. Have you ever tried surrounding your camera or mic with a baffle? It's a real low-tech method I use to cut down on noise outside and some echo inside. I have a MUCH lower budget setup than you and find that taping cardboard or plastic around the sides of the camera (for on camera mics) reduces the background noise when recording outside as well as some reflections/echo when recording inside. It kind of makes the mic directional to some extent. Extend the plastic/cardboard from the sides of the camera and as far out in front as possible w/o seeing the baffle in the shot. It's not the end all solution but works to some extent.
From 3:00 I thought it was a voice over😂😂