Very interesting. The best soundwaves, in my opinion, are square waves. They are fun and sound very rich. Next soundwaves are sawtooth waves. I also love them, since they also sound rich and serious like a square waves. Triangle waves are mediocre, since they are less rich and quieter. The waves I heavily dislike are sinewaves. Sinewaves are very boring, bland and weak. Also, when frequency of the sine sound is below 1 kHz, the hearing threshold starts to rise very slowly. To hear 100 Hz sinewave, the sound pressure has to be 25 dB. To hear 20 Hz sinewave, the sound pressure has to be 80 dB. And for 16,35 Hz (which is frequency of the tone C0), the sound pressure has to be 90 dB. This means that, in order to hear sinewave sound at low frequency, you have to turn your volume up, which increases risk for hearing damage and damage to the equipment. But with square and sawtooth waves, you can hear down to 1 Hz, since harmonics and overtones are here to help you hear the sound of extremely low frequency (or infrasound). This is why I prefer square waves and sawtooth waves.
I like square waves most. The "lead synth" sound used on many songs in the 70, starting with "lucky man" were all square waves with a little chorus and portamento thrown in
Parabolic wave(Pointy sawtonic wave): Type of wave: pointy Number of harmonics: series of natural numbers First harmonic phase: 270° All harmonics have a phase of 270° First harmonic volume at zero volume: -1.82 dB Volume fallout function: quadratic Volume fallout harmonics: -12.04 dB / oct Triangle wave(Pointy squatonic wave): Type of wave: pointy Number of harmonics: series of odd numbers First harmonic phase: 180° The harmonics phases alternate: {4n + 1} - phase 180°, and {4n + 3} - phase 0° (Every second harmonic will be in zero phase, and every first will be in antiphase) First harmonic volume at zero volume: -1.82 dB Volume fallout function: quadratic Volume fallout harmonics: -12.04 dB / oct Sawtooth(Ramp) wave (Sharp sawtonic wave): Type of wave: sharp Number of harmonics: series of natural numbers First harmonic phase: 0° All harmonics have a phase of 0° First harmonic volume at zero volume: -3.92 dB Volume fallout function: linear Volume fallout harmonics: -6.02 dB / oct Meander(Square) wave (Sharp squatonic wave): Type of wave: sharp Number of harmonics: series of odd numbers First harmonic phase: 0° All harmonics have a phase of 0° First harmonic volume at zero volume: +2.10 dB Volume fallout function: linear Volume fallout harmonics: -6.02 dB / oct
Probably because they have a limited number of sounds they can create. Making more musical tones would take a new skill set and the guys making the games are probably more focussed on the games themselves.
How about the duty cycles of square (a.k.a pulse) waves, the sound can vary a lot between different "percentages", the most common are 50% waves (the normal square wave), 25% waves (where the square is like cut in half, then one of the halfes is removed, and 12.5% waves where the lenght of the square is divided by 4 __-- ___- ____- It's something like that, it's hard to represent them with underscores and dashes
The waveform shapes are the same for both voltage & sound. A voltage can be converted into sound using a transducer (loudspeaker etc) and vice versa using a microphone.
The waveforms differ because of the different vibrations that exist either as sounds or electrically. These vibrations reach our ears as sound waves - they need to be converted from electrical signals to vibrations in the air by transducers such as earphones, loudspeakers etc. The vibrations in the air consist of successive compressions and decompressions of the air molecules in the same form as the type of vibrations. I hope this helps explain it for you.
I feel like I was scammed by TH-cam compression for the context, I have an old scope connected to my PC's audio output bc I do oscilloscope music, and so I thought, why wouldn't I look at the signals there are on your video and apart from the sine wave, others don't look like what they should They sound like what they should, because they have the same frequency distribution, but they look awful...
That’s interesting - I know the spectra of the signals are a little difficult to see because the trace is very thin and I can’t change it ( I use a USB scope) but I thought the shapes of the waveforms are ok. The spectra are also what would be expected, but not as clear as I would like.
@@ElectronicsNotes I don't mean the images, the images are fine and represent well the signals you want to show. I mean the sounds. The audio spectra are right, but as far as I can see, my scope gives me wildly different waveforms. I can send you pictures of what waveforms I get if you want.
![Sine, Saw, Square, Triangle, Pulse: Basic Waveforms in Sound Synthesis Explained [Synth #005]](/img/n.gif)
Comparison
1. Sine: 8:16
2. Square: 8:19
3. Triangle: 8:23
4. Sawtooth: 8:27
Very interesting. The best soundwaves, in my opinion, are square waves. They are fun and sound very rich. Next soundwaves are sawtooth waves. I also love them, since they also sound rich and serious like a square waves. Triangle waves are mediocre, since they are less rich and quieter. The waves I heavily dislike are sinewaves. Sinewaves are very boring, bland and weak. Also, when frequency of the sine sound is below 1 kHz, the hearing threshold starts to rise very slowly. To hear 100 Hz sinewave, the sound pressure has to be 25 dB. To hear 20 Hz sinewave, the sound pressure has to be 80 dB. And for 16,35 Hz (which is frequency of the tone C0), the sound pressure has to be 90 dB. This means that, in order to hear sinewave sound at low frequency, you have to turn your volume up, which increases risk for hearing damage and damage to the equipment. But with square and sawtooth waves, you can hear down to 1 Hz, since harmonics and overtones are here to help you hear the sound of extremely low frequency (or infrasound). This is why I prefer square waves and sawtooth waves.
Very interesting summary. Thank you.
sine wave is the best one
sine is the one you mostly hear in real life lol
@@ElectronicsNotes this makes me want to play with my moog grandmother tbh
I like square waves most. The "lead synth" sound used on many songs in the 70, starting with "lucky man" were all square waves with a little chorus and portamento thrown in
Parabolic wave(Pointy sawtonic wave):
Type of wave: pointy
Number of harmonics: series of natural numbers
First harmonic phase: 270°
All harmonics have a phase of 270°
First harmonic volume at zero volume: -1.82 dB
Volume fallout function: quadratic
Volume fallout harmonics: -12.04 dB / oct
Triangle wave(Pointy squatonic wave):
Type of wave: pointy
Number of harmonics: series of odd numbers
First harmonic phase: 180°
The harmonics phases alternate:
{4n + 1} - phase 180°, and {4n + 3} - phase 0°
(Every second harmonic will be in zero phase, and every first will be in antiphase)
First harmonic volume at zero volume: -1.82 dB
Volume fallout function: quadratic
Volume fallout harmonics: -12.04 dB / oct
Sawtooth(Ramp) wave (Sharp sawtonic wave):
Type of wave: sharp
Number of harmonics: series of natural numbers
First harmonic phase: 0°
All harmonics have a phase of 0°
First harmonic volume at zero volume: -3.92 dB
Volume fallout function: linear
Volume fallout harmonics: -6.02 dB / oct
Meander(Square) wave (Sharp squatonic wave):
Type of wave: sharp
Number of harmonics: series of odd numbers
First harmonic phase: 0°
All harmonics have a phase of 0°
First harmonic volume at zero volume: +2.10 dB
Volume fallout function: linear
Volume fallout harmonics: -6.02 dB / oct
Amazing video,
Thanks for sharing such valuable information on TH-cam!
Glad you liked the video. Thanks for the comment.
Or, "Why do retro video game soundtracks sound like that?" It's because of these waves.
Probably because they have a limited number of sounds they can create. Making more musical tones would take a new skill set and the guys making the games are probably more focussed on the games themselves.
You will really enjoy this video
th-cam.com/video/8RrQrATnXXY/w-d-xo.html
How about the duty cycles of square (a.k.a pulse) waves, the sound can vary a lot between different "percentages", the most common are 50% waves (the normal square wave), 25% waves (where the square is like cut in half, then one of the halfes is removed, and 12.5% waves where the lenght of the square is divided by 4
__--
___-
____-
It's something like that, it's hard to represent them with underscores and dashes
Good idea.
surprisingly useful for sound design
Knowing the different sounds can be very useful as you say.
Great comparison! Thanks
Thanks for watching! Glad it was helpful.
Wait don't we use these for voltage movements? How is it associated with sound?
The waveform shapes are the same for both voltage & sound. A voltage can be converted into sound using a transducer (loudspeaker etc) and vice versa using a microphone.
What a great video thank you.
Thank you for your comment. I’m glad the video was useful.
Amazing, thank you!
Glad it was useful.
why waveforms differ ?how does energy reach to listner ear?
The waveforms differ because of the different vibrations that exist either as sounds or electrically. These vibrations reach our ears as sound waves - they need to be converted from electrical signals to vibrations in the air by transducers such as earphones, loudspeakers etc. The vibrations in the air consist of successive compressions and decompressions of the air molecules in the same form as the type of vibrations. I hope this helps explain it for you.
thanks
Glad you found it useful.
I feel like I was scammed by TH-cam compression
for the context, I have an old scope connected to my PC's audio output bc I do oscilloscope music, and so I thought, why wouldn't I look at the signals there are on your video
and apart from the sine wave, others don't look like what they should
They sound like what they should, because they have the same frequency distribution, but they look awful...
That’s interesting - I know the spectra of the signals are a little difficult to see because the trace is very thin and I can’t change it ( I use a USB scope) but I thought the shapes of the waveforms are ok. The spectra are also what would be expected, but not as clear as I would like.
@@ElectronicsNotes I don't mean the images, the images are fine and represent well the signals you want to show.
I mean the sounds. The audio spectra are right, but as far as I can see, my scope gives me wildly different waveforms.
I can send you pictures of what waveforms I get if you want.
🙏💐💐💐
Glad you liked it. Thanks for the comment.
আমি বাঙালি 💗
NERD! 😂
Joking aside this helped me Soooo very much.
Glad you found the vid useful.