xvf3100

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mark-jack
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xvf3100

Postby mark-jack » Sun Nov 12, 2017 3:57 am

How can I use the xvf3100's microphone to capture sound at a 48KHz sampling rate and transfer it to a PC via USB?Thank you very much, if you can provide an example。
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infiniteimprobability
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Postby infiniteimprobability » Mon Nov 13, 2017 4:00 pm

Do you need the far-field voice processing or just raw PCM capturing?

If you want the far-field stuff (beam former, AEC, AGC, NS etc..) then this runs at a fixed sample rate of 16kHz. However, the firmware can upsample this to 48kHz for you if you choose, although the voice band will still be 8kHz wide. Try something like the 1i2o2_cir43_48k build..

If you just want raw PCM at 48k then you can you can use 1i8o2 which will give you all 7 mics raw..

Use the vocalfusion speaker software here https://www.xmos.com/support/software/vfspeaker
mark-jack
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Joined: Fri Oct 13, 2017 4:11 am

Postby mark-jack » Thu Nov 16, 2017 9:54 am

Ok, thank you very much!
mark-jack
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Posts: 13
Joined: Fri Oct 13, 2017 4:11 am

Postby mark-jack » Thu Nov 16, 2017 10:13 am

infiniteimprobability wrote:Do you need the far-field voice processing or just raw PCM capturing?

If you want the far-field stuff (beam former, AEC, AGC, NS etc..) then this runs at a fixed sample rate of 16kHz. However, the firmware can upsample this to 48kHz for you if you choose, although the voice band will still be 8kHz wide. Try something like the 1i2o2_cir43_48k build..

If you just want raw PCM at 48k then you can you can use 1i8o2 which will give you all 7 mics raw..

Use the vocalfusion speaker software here https://www.xmos.com/support/software/vfspeaker

Thank you for your help. Now I have a problem that the sampling rate of the microphone is given through the channel but how can I not find the sample rate that is transmitted in this channel? May I ask how can I change the sampling rate of the microphone through this channel?
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