Audio Processing - Zoom Room

[Kinjojo]

Dear Zoom Community,

Good day! We would like to ask for a consultation regarding our Zoom Room setup.

For context, we are trying to eliminate or at least minimize cross-talking (a ducking effect) when far-end and local audio are talking simultaneously.

The actual scenario is that the local audio is being suppressed when the far-end and local will talk at the same time (being observed with a third party who is listening for both local and far-end speakers). This audio experience is present when using two distinct DSPs; we remove the audio processing in the microphone and DSP (AEC, AGC EQ, etc.), along with the removal of poly’s “noiseblock ai” to isolate which device is processing the ducking/suppression and we felt like there is processing happening in Zoom Room even though we disable (‘off’) noise suppression.

In the article I read, there is a note there saying “there is a basic noise suppression feature in the background that cannot be disabled.” Is there a way we can set this setting off, and how?

We have two separate systems having different DSPs:

Microphones: Shure MXA920

DSP: Biamp TesiraForte Dan and QSC Core

MTR Codec: Poly G7500 in Zoom Room Environment

Zoom Room Version : 6.4.1

Thanks,
Kinjojo

[bstrelko · Accepted solution]

Using high-fidelity music mode is going to remove the most downstream audio processing (that Zoom will allow at this point):

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0078419

From there, you should be able to handle all AGC/AEC/NR on your own DSPs at your own risk.

There is likely some additional audio processing taking place at the cloud/MMR level, which you're going to be hard-pressed to get any movement/change from Zoom on.

After fighting it for years, I've learned to program my DSPs to work with Zoom's downstream processing, not try to do everything.

Doesn't help when Zoom silently changes their audio processing algorithms without telling anyone, though...

[orbitvelvet]

Thanks for the detailed explanation! It does seem like Zoom’s built in noise suppression is still active hoping Zoom provides an option to fully disable it for setups like yours.