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Question about stereo upmixing #1
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I think the above method of copying the L and R channels to the additional channels should work well. I did some brief testing and tried to modify the values and came up with below. I also added a very slight delay to the rear channels which should help give a more surround image. You can try adding this config before the 7.1 BRIR convolution step and adjusting the gains/delays to your preference. |
@ShanonPearce |
Nope, it is noticeable. Don't know what would be the best value to put here though. |
That's understandable considering some rooms have limited azimuth ranges (rooms 08, 09, 12, 13, 14 & 17) which will limit the surround effect. The BRIR convolution configs for those rooms will just take the largest available azimuth for the rear channels. |
@ShanonPearce After thinking about it for a bit, I feel like this issue have been resolved in #2 because a person can just use ASH and HeSuVi with the Upmix Stereo option ticked. |
All of the audio content I listen to only uses 2 channels, but I would still like to use all of the BRIR .wav's instead of just the A-30 and A30 .wav's for stereo content. However, this project doesn't have a suggestion for how to upmix stereo for this purpose. I have been able to find an idea from HeSuVi (
Copy: L=0.5*L R=0.5*R C=0.2*L+0.2*R SUB=0.0 RL=0.3*L+-0.2*R RR=-0.2*L+0.3*R SL=0.45*L+-0.25*R SR=-0.25*L+0.45*R
, though I just multiplied all of the values by 2 to result inCopy: C=0.4*L+0.4*R SUB=0 RL=0.6*L+-0.4*R RR=-0.4*L+0.6*R SL=0.9*L+-0.5*R SR=-0.5*L+0.9*R
), but I don't know if this makes sense/is valid for this purpose, nor do I know if this specific upmix is for narrow 7.1 or wide 7.1.Here is what my current configuration looks like:
![Editor_YVvV70lo5J](https://user-images.githubusercontent.com/47763383/193867779-28a402e7-33b4-4af1-aacd-d2fc1f4f81c3.png)
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