If I had not spent so much on just audio equipment to test & trial I would prob buy an Acusis S just to test & trial
Beamformers have a geometry that tells the algs how to process and the Acusis S is the only linear wall mount geometry I know of, so on a wall it should be about perfect or any vertical face.
Its always the same with loud background noise as there is a threshold anything can cope with due to pure simple physics.
I think the XMOS XVF3500 DSP is a model up from any of the other XMOS units you can get (Respeaker) and they have opted to buy in Phillips ‘BeClear Speech Enhancement’
I am confused by what you mean by the Acusis audio ouput as thought it from a quick read it has audio pass through which is sort of cool as my test & trial head is thinking does that mean I can get a mixer and add microphones in places of noise if I so wanted and the background noise problem is a thing of the past.
Being analogue there should be no latency or clock drift problems which you will get if carrying audio via IP or I2S loopbacks that other boards have.
Also with AEC where we do have software my tinkering would be wondering what would it sound like with a double helping if run in conjunction with the Acusis S.
I would have a lot to play with still with the Acusis S and its expensive for a microphone but not much more than others and I think it does have some clear advantages.
If you put mics far and add them to AEC then you have some far more resilient to noise a BoyaMM1 or even better its super cardioid MM1+ right at the noise source with the rear facing voice.
You are probably happy with what you have and don’t want any more wires and cables but because it does have audio passthrough you do have the option to capture and process noise.
With one of these you could make the wife disappear https://www.aliexpress.com/item/32966474568.html
So £15 for a mic and £7 for a mixer many a man would say the ability is value for money.
Input both the audio output of your soundcard with the input of the mic and AEC should process both.
You might have to do some tinkering with levels but thinking a mic on a TV, Hifi or Piano through AEC should work extremely well or it will negate the AEC but thinking it would work.
The only software I use successfully is SpeexDSP but it works because you must use the soundcard your playing and capturing on and so negates the possibility to mix in further noise channels.
PS found a 4 channel stereo https://www.aliexpress.com/item/32967843730.html
But that sort of thing or even if you have a mixer as things there do sound musical.
There is a lot to play with that board, did you download or was that just default?
Acusis S Configuration Tool (aconfig)
We’ve developed our own Acusis S config tool (aconfig) to allow us to easily tune XVF3500 parameters from a host computer. Please check out XMOS (https://www.xmos.ai/) and XCore forum (https://www.xcore.com/) for more help and details on the parameters available for XVF3500.
aconfig --set BEAMWIDTH is a pretty cool feature