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  • alex6679's Avatar
    03-29-2020, 05:26 PM
    I had a brief look at the current spdif input to check if it makes sense to make a combined class that could be configured as synchronous and asynchronous input. But I think that would make things quite complex. I'll...
    15 replies | 529 view(s)
  • alex6679's Avatar
    03-29-2020, 12:19 PM
    Ok, I am using now DMAMEM for the input buffer (+arm_dcache_delete((void*)src, sizeof(spdif_rx_buffer) / 2) in the isr) Also, I added the anti-aliasing attenuation + the minimum filter length of the resampling filter to...
    15 replies | 529 view(s)
  • alex6679's Avatar
    03-28-2020, 11:02 PM
    Thanks for pointing out, that I should use DMAMEM. I'll fix that tomorrow. If you really want to replace your version, then I can change the name. But resampling needs quite some ressourcen (Mostly because of the...
    15 replies | 529 view(s)
  • alex6679's Avatar
    03-28-2020, 10:37 PM
    I noticed that you already implemented a spdif input some weeks ago, when Paul added it to the audio library. At that point I also already finished my implementation. However, as you mentioned: Since my implementation...
    15 replies | 529 view(s)
  • alex6679's Avatar
    03-28-2020, 10:13 PM
    Since my last post in December, I improve the asynchronous spdif input. Especially the PID controller, that adjusts the sampling distance to the current input frequency. I also added a short documentation and some...
    15 replies | 529 view(s)
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Teensy 4 SPDIF input + ASRC 03-29-2020 05:26 PM
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