REW room simulation is not accurate if you use the wrong room dimensions. This can be tricky as it is not so easy to measure wall-to-wall distance. The wall is wide and it might be bent or not all even. So I have used a REW speaker measurement where I switched on "Show modal frequencies". I have looked at which frequencies the three first modal frequencies show starting from the lowest frequency. I have compared this information with the modals that the simulation does calculate. I have then adjusted room dimensions in the simulation to get the same modal frequencies in the simulation. This way I get a as accurate simulation as possible.
Hi, I've watched a lot of tutorials about rew. This video had more information about the software than any other video I've seen. There was no deeply dive but it's encouraged me to look deeper into rew and it's capabilities. Thanks for your time and effort 👍🏼
REW is pretty amazing and I am still learning everyday. If you want to read more you should check out the REW forum: www.avnirvana.com/forums/official-rew-room-eq-wizard-support-forum.10/
El primer video que explica teórico - práctico y pone en escena qué necesitas para medir. Una duda ¿el segundo software también puede ingresar parámetros de absorbentes existentes de acuerdo a sus dimensiones, ancho y capacidad de absorción? Sería interesante saber si puedes simular cómo reaccionaría la sala usando qrd, absorbentes y otros difusores en diferentes puntos antes de hacer mediciones con micrófono. Gracias por compartir.
¡Muchas gracias! Gran pregunta. No es este software, pero hay algunas herramientas muy caras disponibles para los acústicos profesionales. Permiten diseñar la estancia y luego añadir los diferentes materiales y tipos de difusores y absorbentes. Disculpas por la "traducción al español" 🙏
I assume all of this info applies to a hifi room? I'm trying to improve my hifi setup, which resides in a great room which acts as the living room, dining room and kitchen. It's a large room with vaulted ceilings and open on one side. I'm a veteran with hifi gear, but a newbie with acoustics. Seems like a pretty steep learning curve. I just recently downloaded REW and bought a measurement mic and have started trying to familiarize myself with the process.
Hey Tom! Yes, this all applies to a listening room too. I encourage you to "Just Do It" and learn from any miss-steps. You may find that there is a great deal of "Juju" and mythical beliefs around what makes for a great listening room. If you have any questions or issues, please reach out!
Thanks for asking...REW is the answer. After you baseline the empty room save it. Now start adding absorbers/diffusers to the room and run additional sweeps in REW each time you add/subtract/move the absorbers.
@@mediaunion wait... so you can add absorbers within the software? Where is that functionality Cause like I said. I can't physically hang up absorbers yet
@@TheCatGoesRawrMusik Sorry, I misunderstood your first statement. In the REW Room Simulator, you can add up to .90 percent of absorption for the walls, roof, & floor. There isn't a definition of the size or depth of the absorption. I've always assumed that it's a percentage of the area is covered....so an 8 x 14 ft wall is 112 sq feet. A basic absorber is 8 sq ft. so adding 5 (40 sq ft.) absorbers to this room Sim wall is about .35 (35%). It's just a simulator but it's very helpful in figuring out your room before you can get access or to find the optimum room in your house. Great question! Good luck on your journey!
No words sir, such a simple explanation on a subject i have been trying to understand for quite some time. Hope we had more people like you in this TH-cam community. I need a clarifictaion in Amroc. I need to understand what is the significance of the factor "Critical Distance" mentioned below RT 60 value in Amroc? How is that going to be useful. Hope you can get me an answer. Thanks once again with your efforts to educate us.
@kcganesh70 Thank you! Very kind words. I have reached out to Andreas @ Amroc to get his clarification on the calc. In the interim...Check out Dennis Foley. Great resource for balancing room acoustic theory and application. www.acousticfields.com/what-is-critical-distance-and-why-is-it-so-important-to-your-audio-experience/
Hello Martin! I'm not trained in acoustics but I'm continuing to learn more everyday. The best and clearest explanation I found for the "4 zones" is from Wikipedia. "The way that sound behaves in a room can be broken up into roughly four different frequency zones: • The first zone is below the frequency that has a wavelength of twice the longest length of the room. In this zone, sound behaves very much like changes in static air pressure. • Above that zone, until wavelengths are comparable to the dimensions of the room, room resonances dominate. This transition frequency is popularly known as the Schroeder frequency, or the cross-over frequency and it differentiates the low frequencies which creates standing waves within small rooms from the mid and high frequencies. • The third region which extends approximately 2 octaves is a transition to the fourth zone. • In the fourth zone, sounds behave like rays of light bouncing around the room." en.wikipedia.org/wiki/Room_acoustics#Frequency_zones So based on the dimensions of your room your zones may differ slightly from the zones my room but not too much. Hope this clarifies how the zone are defined. Best, Kevin
This has been of great help to me in understanding how this works. Thank you! I've just made a calibration file for my soundcard. Just wondering how to obtain the calibration file to use in the Mic/meter field.
@@coenberrier7133 For a starter, Here's the link for the ECM 8000 Calibration file from SonicStudio. downloads.sonicstudio.com/mic_calibration_files/ECM_8000_cal_file.zip There are many calibration files floating around the webs and since they are txt files you can edit them. Heres a link to a thread on AV Nirvana's REW forum. www.avnirvana.com/threads/ecm8000-calibration-file.3949/ I'm working on a new how to set up REW video now so stay tuned. Thanks for the great feedback and go get measuring! LOL
Hi, Can you tell me if I need to take all the equipment and furniture out of the room for initial room reading or do I download the software and start measurements where my room sits now. I have no treatment on any surface currently, just completed by building of equipment cabinets and installation of all equipment.
Hey! I would leave the equipment in the room and start from there. Tuning the room is more about absorption/diffusion tools than impacts from hardware.
Hello, Actually it is showing you where in the room the pressure is higher for a given frequency. "The blue and red zones both show pressure zones of the modes. Amroc shows those different colors just for better visualization for higher order modes. Axial room mode as 3D Visualization Because the modes are narrow band and acting locally it is important to understand at which places a subwoofer or absorber should or should not be placed (more about that later)." Read more here... amcoustics.com/articles/roommodes
Hey dj! I'm always "re-sweeping" my room. Maybe it's like candy or tasting a good licorice, once is not enough! Rooms can change by adding bodies or additional instruments. Thanks for following! Kevin
I'm not aware if REW will handle non-rectangle rooms. However, if your room has an open side what matters most is where you place monitors and the listening position. Send your room dimensions and height to mediaunion@comcast.net and I'll chat with you directly. Kevin
Thanks for these videos, the REW and room treatment videos have some very good information. I hadn't heard of amroc, I'll be checking that out today, it looks very useful. Thanks again!
Hey David, Thank you. AmRoc and REW are two tools that are indispensable in getting your room/studio to tell you what the challenges are. Can't wait to hear what you think about them in your situation.
first you have to have a good barrier to stop noise from coming in the room and/or noise within the room going out bothering neighbors or the room next to the room. Once you have an adequate barrier, then you can proceed to dealing with the treatment room design. To design the outer shell, you'll need to perform a noise study during the time periods you plan on using your studio. and the shell must be designed properly to address the noise issues. Then the first area to analyze and treat for the room treatment room, you'll need to look at Axial modes in the
Hey! Yes...my next vid in the ADU series will touch on this very issue. Too much absorption really messes with your room and your ears. Absorption/Diffusion a personal thing, it's counter intuitive to the goals of sales person. ;D Kevin
@CarlosPanades I'd recommend the miniDSP UMIK-1 calibrated USB measurement microphone. Switching from a DBX and Behringer to the umik made it so much easier for me. Once you download & install REW the developer recommends downloading this file as a reference for your materials in the room simulator. You should use the 125Hz coefficients from this pdf in REW. cds.cern.ch/record/1251519/files/978-3-540-48830-9_BookBackMatter.pdf Thanks for asking!
@@mediaunion Your videos, your channel is awesome, it helped me a lot to acquire the basic knowledge necessary to improve my room. You also reply to people fast, this isn't common on YT, thanks a lot for that! I don't work with audio but I enjoy listening to music and I desire to have the best I can within a budget. I already invested in some acoustic panels and bass traps but I was relying on wrong info and I didn't get the results I was looking for. I'm not in the US and I'll have to work with what I find around here, so I'd like to know if I use a cheaper mic, will it give me at least a decent feedback to "understand" my room better or it would be not that efficient and I'd be wasting time?
Thank you! I'm happy that it is helpful for you and others. If I can help viewers save money and increase their enjoyment of music, makes it such a fun effort!
Am continuing to review, at 13:36 you show that squared off rt60 by zone sort of vertical bars chart graph with a table open too on left hand side: how does REW make that graph?
Hi,great job! i wonder how to figure out from the reading in Roomwizard what the RT60 of my recording/mix musikstudio is, can you help me out? Best regards Chris
Hi Kevin! I'm very lucky to have found you ... introducing me to REW should definitely assist me when I actually build my room. My only constraint is that the ceiling is a shallow, 7'-9". I'll have to work around that. This is my 1st attempt at actually "hearing" what I've been missing all these 61 years. Thanx again... I'll get back with results after completion. Dave in NY
Hi Dave! Glad you found me. I know you will have fun working through the tech, sounds and the ju-ju surrounding making your own home studio. Looking forward to hearing about your journey!
@@mediaunion Well sir, won't be happening anytime soon... lots goin on, at best, before next winter. Also, quite a "different" room > It'll be on the 2nd floor of my Gambrel roof styled barn! 7'-9" x 12'.6" x just over 17 long. I'll have closed cell spray foam in the left side wall, OC R-19 rolls in the remaining walls and ceiling... all covered with either 5/8" ply or drywall. Fully carpeted floor. NO windows. I've never heard anything above typical stereo in non-treated areas so, I certainly hope to be pleasantly surprised.
Hi I am a musician, trying to treat the acoustic of my room. I have dome doubts 🤔 in rew software, how do you know what is your surfaces absorption? Is a standard for each material I should look online? For example I have a carpet, and 2 courtains on side walls .but nothing on the ceiling. What would be the value for carpet on the floor? Thanks!
Greetings Stella, great question. Material absorption is measure in NRC (Noise Reduction Coefficient) and soundproofing in STC (Sound Transmission Class). If you are looking to reduce noise in your room when recording you'd look at a material's NRC. Most absorbers have a rating on NRC across the frequencies. Example: 2” (50MM) of Mineral wool has the NRC of .32 at 125Hz and .81 at 250Hz. A NRC rating of 1 is really good reduction and .20 is not so good. A good rule is to check any material you buy for an NRC rating. Better yet if it has ratings by frequency bands or octaves. "A typical broadloom carpet has an NRC of 0.35 and will absorb approximately 35% of sound that strikes it. The NRC rating of carpet is directly proportional to the thickness of the floor covering. If the carpet is installed with an underlay its NRC rating will almost double." www.carpetinstitute.com.au/residential/carpet-noise-pollution-reduction/ Hope this helped.
@@mediaunion Thanks a lot for your reply! I know NRC is important when it comes to sound absorption - I read something about in a book. But had no idea how to reckon this by myself, now I understand the information should be given by the brand when I buy the material! I managed to do my first calibration, only audio interface at the moment. I just want to do everything right. I will watch your other videos!
@@StellaWembley My assumption your ceiling NRC is very low if it is plaster or concrete. What you should investigate is "a cloud" of materials with high NRC that you will place above your "listening position" and where you have your Mic when recording. I've seen a bed sheet with pillows pinned to ceilings before...it works but it's not sustainable. Thanks for watching!
REW room simulation is not accurate if you use the wrong room dimensions. This can be tricky as it is not so easy to measure wall-to-wall distance. The wall is wide and it might be bent or not all even. So I have used a REW speaker measurement where I switched on "Show modal frequencies". I have looked at which frequencies the three first modal frequencies show starting from the lowest frequency. I have compared this information with the modals that the simulation does calculate. I have then adjusted room dimensions in the simulation to get the same modal frequencies in the simulation. This way I get a as accurate simulation as possible.
Good idea!
Hi,
I've watched a lot of tutorials about rew. This video had more information about the software than any other video I've seen. There was no deeply dive but it's encouraged me to look deeper into rew and it's capabilities.
Thanks for your time and effort 👍🏼
REW is pretty amazing and I am still learning everyday. If you want to read more you should check out the REW forum: www.avnirvana.com/forums/official-rew-room-eq-wizard-support-forum.10/
El primer video que explica teórico - práctico y pone en escena qué necesitas para medir. Una duda ¿el segundo software también puede ingresar parámetros de absorbentes existentes de acuerdo a sus dimensiones, ancho y capacidad de absorción? Sería interesante saber si puedes simular cómo reaccionaría la sala usando qrd, absorbentes y otros difusores en diferentes puntos antes de hacer mediciones con micrófono. Gracias por compartir.
¡Muchas gracias!
Gran pregunta. No es este software, pero hay algunas herramientas muy caras disponibles para los acústicos profesionales. Permiten diseñar la estancia y luego añadir los diferentes materiales y tipos de difusores y absorbentes.
Disculpas por la "traducción al español"
🙏
Great explanations! Good balance of simplicity and theory.
Thank you kindly!
I assume all of this info applies to a hifi room? I'm trying to improve my hifi setup, which resides in a great room which acts as the living room, dining room and kitchen. It's a large room with vaulted ceilings and open on one side. I'm a veteran with hifi gear, but a newbie with acoustics. Seems like a pretty steep learning curve. I just recently downloaded REW and bought a measurement mic and have started trying to familiarize myself with the process.
Hey Tom! Yes, this all applies to a listening room too. I encourage you to "Just Do It" and learn from any miss-steps. You may find that there is a great deal of "Juju" and mythical beliefs around what makes for a great listening room. If you have any questions or issues, please reach out!
Hi! What would you do if you could not get into the room? How could one go about calculating the Influences of absorbers placed in the room
Thanks for asking...REW is the answer. After you baseline the empty room save it. Now start adding absorbers/diffusers to the room and run additional sweeps in REW each time you add/subtract/move the absorbers.
@@mediaunion wait... so you can add absorbers within the software? Where is that functionality
Cause like I said. I can't physically hang up absorbers yet
@@TheCatGoesRawrMusik Sorry, I misunderstood your first statement.
In the REW Room Simulator, you can add up to .90 percent of absorption for the walls, roof, & floor. There isn't a definition of the size or depth of the absorption. I've always assumed that it's a percentage of the area is covered....so an 8 x 14 ft wall is 112 sq feet. A basic absorber is 8 sq ft. so adding 5 (40 sq ft.) absorbers to this room Sim wall is about .35 (35%).
It's just a simulator but it's very helpful in figuring out your room before you can get access or to find the optimum room in your house.
Great question! Good luck on your journey!
Wow! Thank you so much for explaining and sharing this knowledge! This is the best video I found on this subject.
Thank you! Glad you enjoyed it!
@ 1:10 how did you come up with your 28 Hz for zone one? The wavelength of 2x your room is 28 feet, which translates to approximately 40 Hz.
Ooops! Brain fog maybe? You're correct it's 40Hz... Well done. :)
could you explane me the calc for determinate 40Hz ?
No words sir, such a simple explanation on a subject i have been trying to understand for quite some time. Hope we had more people like you in this TH-cam community.
I need a clarifictaion in Amroc. I need to understand what is the significance of the factor "Critical Distance" mentioned below RT 60 value in Amroc? How is that going to be useful. Hope you can get me an answer.
Thanks once again with your efforts to educate us.
@kcganesh70 Thank you! Very kind words. I have reached out to Andreas @ Amroc to get his clarification on the calc.
In the interim...Check out Dennis Foley. Great resource for balancing room acoustic theory and application.
www.acousticfields.com/what-is-critical-distance-and-why-is-it-so-important-to-your-audio-experience/
Could you go into more details about the four zones? and how you calculate them
Hello Martin! I'm not trained in acoustics but I'm continuing to learn more everyday. The best and clearest explanation I found for the "4 zones" is from Wikipedia.
"The way that sound behaves in a room can be broken up into roughly four different frequency zones:
• The first zone is below the frequency that has a wavelength of twice the longest length of the room. In this zone, sound behaves very much like changes in static air pressure.
• Above that zone, until wavelengths are comparable to the dimensions of the room, room resonances dominate. This transition frequency is popularly known as the Schroeder frequency, or the cross-over frequency and it differentiates the low frequencies which creates standing waves within small rooms from the mid and high frequencies.
• The third region which extends approximately 2 octaves is a transition to the fourth zone.
• In the fourth zone, sounds behave like rays of light bouncing around the room."
en.wikipedia.org/wiki/Room_acoustics#Frequency_zones
So based on the dimensions of your room your zones may differ slightly from the zones my room but not too much.
Hope this clarifies how the zone are defined.
Best,
Kevin
good concise summary of room acoustic software
This has been of great help to me in understanding how this works. Thank you! I've just made a calibration file for my soundcard. Just wondering how to obtain the calibration file to use in the Mic/meter field.
All I can find about this is is that people rent a more expensive/calibrated mic to calibrate their ECM 8000 ;)
@@coenberrier7133 For a starter, Here's the link for the ECM 8000 Calibration file from SonicStudio. downloads.sonicstudio.com/mic_calibration_files/ECM_8000_cal_file.zip There are many calibration files floating around the webs and since they are txt files you can edit them. Heres a link to a thread on AV Nirvana's REW forum. www.avnirvana.com/threads/ecm8000-calibration-file.3949/ I'm working on a new how to set up REW video now so stay tuned. Thanks for the great feedback and go get measuring! LOL
Ive watched so many tutorials and these are so far the best ones... great job
Wow, thanks! Much appreciated.
Hi,
Can you tell me if I need to take all the equipment and furniture out of the room for initial room reading or do I download the software and start measurements where my room sits now. I have no treatment on any surface currently, just completed by building of equipment cabinets and installation of all equipment.
Hey! I would leave the equipment in the room and start from there. Tuning the room is more about absorption/diffusion tools than impacts from hardware.
Hello
... at 5:37 is that room 3d box (in Amroc) tell us where to put the acoustic panel or bass trap?
Hello,
Actually it is showing you where in the room the pressure is higher for a given frequency. "The blue and red zones both show pressure zones of the modes. Amroc shows those different colors just for better visualization for higher order modes.
Axial room mode as 3D Visualization
Because the modes are narrow band and acting locally it is important to understand at which places a subwoofer or absorber should or should not be placed (more about that later)."
Read more here...
amcoustics.com/articles/roommodes
That’s helps alot during this episode I can calibrate my room ?!
Hey dj! I'm always "re-sweeping" my room. Maybe it's like candy or tasting a good licorice, once is not enough! Rooms can change by adding bodies or additional instruments. Thanks for following!
Kevin
This serious is awesome ! learnt lot about treatements.thank you very much sir!
Glad to hear that! Keep going!
Kevin
But what if my room isn't a regular rectangle? If it has an opening on one side? How do you deal with that in the software?
I'm not aware if REW will handle non-rectangle rooms. However, if your room has an open side what matters most is where you place monitors and the listening position. Send your room dimensions and height to mediaunion@comcast.net and I'll chat with you directly. Kevin
Thanks for these videos, the REW and room treatment videos have some very good information. I hadn't heard of amroc, I'll be checking that out today, it looks very useful. Thanks again!
Hey David, Thank you. AmRoc and REW are two tools that are indispensable in getting your room/studio to tell you what the challenges are. Can't wait to hear what you think about them in your situation.
first you have to have a good barrier to stop noise from coming in the room and/or noise within the room going out bothering neighbors or the room next to the room. Once you have an adequate barrier, then you can proceed to dealing with the treatment room design. To design the outer shell, you'll need to perform a noise study during the time periods you plan on using your studio. and the shell must be designed properly to address the noise issues.
Then the first area to analyze and treat for the room treatment room, you'll need to look at Axial modes in the
That's exactly what newbie like me needs to start treating his room with some sense, not just "the more absorption surface the better"
Hey! Yes...my next vid in the ADU series will touch on this very issue. Too much absorption really messes with your room and your ears. Absorption/Diffusion a personal thing, it's counter intuitive to the goals of sales person. ;D
Kevin
Your ideo was really powerful. I learned so much and feel more confident dealing with my room modes.
Thanks! Glad to encourage you to "own" the sound and response of your room. Keep going!
What kind of microphone must I use? I didn't install the REW software yet but how do you pick the walls "materials" to input in the software?
@CarlosPanades I'd recommend the miniDSP UMIK-1 calibrated USB measurement microphone. Switching from a DBX and Behringer to the umik made it so much easier for me.
Once you download & install REW the developer recommends downloading this file as a reference for your materials in the room simulator. You should use the 125Hz coefficients from this pdf in REW.
cds.cern.ch/record/1251519/files/978-3-540-48830-9_BookBackMatter.pdf
Thanks for asking!
@@mediaunion Your videos, your channel is awesome, it helped me a lot to acquire the basic knowledge necessary to improve my room. You also reply to people fast, this isn't common on YT, thanks a lot for that!
I don't work with audio but I enjoy listening to music and I desire to have the best I can within a budget. I already invested in some acoustic panels and bass traps but I was relying on wrong info and I didn't get the results I was looking for.
I'm not in the US and I'll have to work with what I find around here, so I'd like to know if I use a cheaper mic, will it give me at least a decent feedback to "understand" my room better or it would be not that efficient and I'd be wasting time?
Happy to find your channel. Greta source of info.
Thanks Kris!
Thank you very much for explaining so many things in a way that was easy to understand
Thanks Brandon! Glad that this helped! Greatly appreciate the feedback too!
So much great info man! Thank you for sharing your knowledge.
Thank you! I'm happy that it is helpful for you and others. If I can help viewers save money and increase their enjoyment of music, makes it such a fun effort!
Awesome series!
Thanks! Much appreciated!
I think the best presentation I have seen on this subject and of how to use these two tools: thank you and well done!
Thank you Matthew! Greatly appreciated.
Am continuing to review, at 13:36 you show that squared off rt60 by zone sort of vertical bars chart graph with a table open too on left hand side: how does REW make that graph?
Hi,great job! i wonder how to figure out from the reading in Roomwizard what the RT60 of my recording/mix musikstudio is, can you help me out? Best regards Chris
Yes. you can send me your .mdat measurement file and we can discuss offline. email me at mediaunion@comcast.net and I will respond.
Thank you so much for sharing your knowledge for free. The best video so far, congratulations and thanks again.
Thanks @CarlosPanades. Much appreciated!
Hi Kevin! I'm very lucky to have found you ... introducing me to REW should definitely assist me when I actually build my room. My only constraint is that the ceiling is a shallow, 7'-9". I'll have to work around that. This is my 1st attempt at actually "hearing" what I've been missing all these 61 years. Thanx again... I'll get back with results after completion. Dave in NY
Hi Dave! Glad you found me. I know you will have fun working through the tech, sounds and the ju-ju surrounding making your own home studio. Looking forward to hearing about your journey!
@@mediaunion Well sir, won't be happening anytime soon... lots goin on, at best, before next winter. Also, quite a "different" room > It'll be on the 2nd floor of my Gambrel roof styled barn! 7'-9" x 12'.6" x just over 17 long. I'll have closed cell spray foam in the left side wall, OC R-19 rolls in the remaining walls and ceiling... all covered with either 5/8" ply or drywall. Fully carpeted floor. NO windows. I've never heard anything above typical stereo in non-treated areas so, I certainly hope to be pleasantly surprised.
Hi I am a musician, trying to treat the acoustic of my room. I have dome doubts 🤔 in rew software, how do you know what is your surfaces absorption? Is a standard for each material I should look online? For example I have a carpet, and 2 courtains on side walls .but nothing on the ceiling. What would be the value for carpet on the floor? Thanks!
Greetings Stella, great question. Material absorption is measure in NRC (Noise Reduction Coefficient) and soundproofing in STC (Sound Transmission Class). If you are looking to reduce noise in your room when recording you'd look at a material's NRC. Most absorbers have a rating on NRC across the frequencies. Example: 2” (50MM) of Mineral wool has the NRC of .32 at 125Hz and .81 at 250Hz. A NRC rating of 1 is really good reduction and .20 is not so good.
A good rule is to check any material you buy for an NRC rating. Better yet if it has ratings by frequency bands or octaves.
"A typical broadloom carpet has an NRC of 0.35 and will absorb approximately 35% of sound that strikes it. The NRC rating of carpet is directly proportional to the thickness of the floor covering. If the carpet is installed with an underlay its NRC rating will almost double."
www.carpetinstitute.com.au/residential/carpet-noise-pollution-reduction/
Hope this helped.
@@mediaunion Thanks a lot for your reply! I know NRC is important when it comes to sound absorption - I read something about in a book. But had no idea how to reckon this by myself, now I understand the information should be given by the brand when I buy the material! I managed to do my first calibration, only audio interface at the moment. I just want to do everything right. I will watch your other videos!
@@mediaunion which would be the NRC of the ceiling? should I look for the material they used when building? Thanks!!
@@StellaWembley My assumption your ceiling NRC is very low if it is plaster or concrete. What you should investigate is "a cloud" of materials with high NRC that you will place above your "listening position" and where you have your Mic when recording. I've seen a bed sheet with pillows pinned to ceilings before...it works but it's not sustainable. Thanks for watching!
Cool Nice Video
Thanks for watching!
Thank you! Thanks for subscribing!