search

ShanonPearce / ASH-IR-Dataset

An impulse response dataset for binaural synthesis of spatial audio systems on headphones
https://shanonpearce.github.io/ASH-IR-Dataset/
Other
125 stars 17 forks source link

why do all the virtual studios have so much reverb? #3

Open capoei opened 5 years ago

capoei commented 5 years ago

I thought there would be a virtual "perfect studio" but the all have way too much "room".

ShanonPearce commented 5 years ago

These rooms were initially created using the 'Small Broadcast Studio' as a reference for the amount of reverberation. Since then I have attempted to reduce the reverberation as they appear to be excessive. I will try to optimise them further if I find the time.

capoei commented 5 years ago

I see. I confused "virtual studios" with "virtual control rooms". I'm sorry. how do you actualy make those? I'm interested in trying to create a virtual control room

ShanonPearce commented 5 years ago

My virtual rooms were created by combining different binaural sources (both real and simulated) in the time domain. The direct sound and early reflections were taken from simulated BRIRs that were already processed, such as from the GRAP dataset. In some cases I recreated the virtual BRIRs with different HRTFs using the data provided. The late reflections were taken from real BRIRs that matched the room type I was trying to recreate.

If you would like to create a high quality simulation of a control room from scratch you will have to look into binaural room acoustics simulators. I have not had the chance to create any binaural simulations from scratch as it requires the use of simulators such as RAVEN (Room Acoustics for Virtual ENvironments) which was used in the GRAP dataset and is not available to experiment with. My understanding is that the software utilises 3D models of rooms along with HRTFs to execute the binaural simulations.

capoei commented 5 years ago

Well I guess this is something more in the future for me (if)