Hey everyone,
I've been working on an open-source hardware platform called T-DSP built around the Teensy 4.1, and this community has been a huge resource along the way.
Building serious desktop or rack-mounted audio gear from scratch is hard...
@DD4WH
No worries! I've been toying with these concepts for years and have kept many of my ideas close to the chest. I've already built a test module with PDM (with help from @h4yn0nnym0u5e), so I had a lot of the pieces in place and was able...
@DD4WH
I mocked up a T-DSP Mic Array Module that should cover your use case.
The design uses two TAC5212 codec modules:
• TAC5212 #1: 4 PDM mics (2 per data line via SELECT pin)
• TAC5212 #2: 2 PDM mics + 2 Knowles SPM0687LR5H-1 analog MEMS...
Yes the TAC5212 does "up to 4 pulse density modulation (PDM) digital microphone interface with a high-performance decimation filter" as specified in the datasheet. I am not aware of a driver for that. Good luck!
Hello @DD4WH,
In addition to the driver here provided by @houtson, @h4yn0nnym0u5e and I had worked on a driver and we got basic functionality working. He has a sample board. Also, I have tests for midi, led, spdif, usb, tdm, i2s, etc. It could...
Quick update. The first backplane is now up as well:
https://github.com/t-dsp/t-dsp_desktop_pro
This is the development platform I mentioned. It's an all-out development platform for pro audio with everything you need to get started with...
Hey everyone,
I've been working with this chip family for a while now. In fact, I've been designing an ecosystem that I hope will bring creativity and joy to musicians and tinkerers alike. It started as a digital audio mixer, and it's grown from...