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    48kHz 8i80 USB Audio

    I've been preoccupied with some other projects recently, looking at this one again. By way of update I did get the T4 to enumerate as a UAC2 device on Win10 and Debian but where I got stuck (and am revisiting now) was handling some standard USB2 requests that were not already baked into the UAC1...
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    48kHz 8i80 USB Audio

    Okay so the (rather non-stack-like) stack didn't need a full re-write thankfully. The descriptors related to the '480MB/s' sections of usb_desc.h/c DID need to be completely rewritten though to conform with USB Audio Class 2.0 (along with the changes in descriptor size, etc). The UAC1 and UAC2...
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    48kHz 8i80 USB Audio

    Okay so I have edited usb_desc.c and usb_desc_h to a stage where it is 'working' but goes only so far as to be successfully queried by the host (Win10 in this case) whereupon the Win10 host loads up the USB Audio Class 2.0 driver. So far so good....however, it seems like the host then goes on...
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    48kHz 8i80 USB Audio

    No open hardware, but the XMOS evaluation boards are a good place to start
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    48kHz 8i80 USB Audio

    Indeed AUDIO_SAMPLE_RATE_EXACT is referenced to setup the SAI clocking and PLL4 at : https://github.com/PaulStoffregen/Audio/blob/master/output_tdm.cpp#L284 That looks like the easy part! I have not yet recieved my T4 hardware (hopefully next week) so I would need to confirm on the scope that...
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    Time for a new Audiolibrary

    I've opened a new thread, specific to 48kHz/24/32bit. https://forum.pjrc.com/threads/60557-48kHz-8i80-USB-Audio
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    48kHz 8i80 USB Audio

    Hello, I intend to use T4 build an 8i8o USB interface running at 48kHz/24bit. Hopefully this can undertake some of the work required to have 48kHz audio and 24/32bit support included in future TeensyDuino releases. I'm new to Teensy but have done a fair bit of PCB design & building as well as...
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    Time for a new Audiolibrary

    Hello, I think I can assist. I intend to use T4 for a very simply 8i8o USB interface running at 48kHz, probably using the CS42448 via TDM through the iMXRT1062 SAI1 interface. No effects, no volume control, no processing ... just clock the samples in and clock them out. I have enough experience...
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