Search found 8 matches

by shaminda
Mon Mar 28, 2016 6:04 pm
Forum: Q&A
Topic: TDM signal capture using xCore multi channel audio EVM
Replies: 10
Views: 8955

Re: TDM signal capture using xCore multi channel audio EVM

Can someone confirm whether the TDM mode can be operated in slave mode (FS is an input to the XCore). The example AN00162_i2s only talks about TDM master mode but talks about both master and slave modes for i2s.

Thanks,
Shaminda
by shaminda
Fri Mar 25, 2016 9:23 pm
Forum: Q&A
Topic: TDM signal capture using xCore multi channel audio EVM
Replies: 10
Views: 8955

Re: TDM signal capture using xCore multi channel audio EVM

Meanwhile I hope some one from xMOS can provide a concrete example for my requirement.
by shaminda
Fri Mar 25, 2016 9:22 pm
Forum: Q&A
Topic: TDM signal capture using xCore multi channel audio EVM
Replies: 10
Views: 8955

Re: TDM signal capture using xCore multi channel audio EVM

Thanks for the advice.
by shaminda
Fri Mar 25, 2016 8:39 pm
Forum: Q&A
Topic: TDM signal capture using xCore multi channel audio EVM
Replies: 10
Views: 8955

Re: TDM signal capture using xCore multi channel audio EVM

Yes, the array microphone product seems very interesting. I have already contacted xMOS sales department to purchase the microphone array. However it is only offered to selected customers at this point and I am waiting for a response. If you are from XMOS can I directly reach out to you do discuss p...
by shaminda
Fri Mar 25, 2016 7:10 pm
Forum: Q&A
Topic: TDM signal capture using xCore multi channel audio EVM
Replies: 10
Views: 8955

Re: TDM signal capture using xCore multi channel audio EVM

I think I clearly need to modify the software to receive the TDM format of the mic array. The mic array uses a TI codec chip that uses TI DSP (TDM) format (The lines; bit clock, FS and data. Frame sync is followed by a multi channel data stream as shown). Does anyone have an idea what software examp...
by shaminda
Fri Mar 25, 2016 5:35 pm
Forum: Q&A
Topic: TDM signal capture using xCore multi channel audio EVM
Replies: 10
Views: 8955

Re: TDM signal capture using xCore multi channel audio EVM

Yes, The microphone array emits a time division multiplexed signal (7 microphone channels ) as shown in the .png file (contains data, bit clock and frame sync signals). I need to capture the audio using the host.
by shaminda
Fri Mar 25, 2016 4:01 pm
Forum: Q&A
Topic: TDM signal capture using xCore multi channel audio EVM
Replies: 10
Views: 8955

TDM signal capture using xCore multi channel audio EVM

Hi, I am trying to get a multi channel TDM signal captured and sent to Matlab data acquisition toolbox. To convert TDM to USB I am trying to us the xCORE-200 multichannel Audio dev board. I am new to xCORE and would really appreciate if you can point to a good example to get started. The microphone ...
by shaminda
Fri Mar 25, 2016 3:47 pm
Forum: Projects
Topic: TDM to USB audio
Replies: 1
Views: 10252

TDM to USB audio

<t>Status: Under development<br/> License: BSD<br/> <br/> The objective of the project is to obtian a TDM multi microphone array signal by the computer using USB interface. The xCORE -200 audio platfrom is used here. There are 5 input TDM channels and the microphone array in in the master mode. My o...