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On 5/14/19 12:26 PM, tuxic@××××××.de wrote: |
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> On 05/13 11:24, Jack wrote: |
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>> On 2019.05.13 23:10, tuxic@××××××.de wrote: |
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>>> Hi, |
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>>> |
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>>> is it somehow possible to play USB-Audio on a PC without one of these |
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>>> USB-dongle-"soundcards" (DACs)? |
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>>> |
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>>> I searched the web and only got links to those dongles... |
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>>> |
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>>> On the other hand: On the forum of the developers board one post |
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>>> spokes of a "dummy" USB-Audio device... |
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>>> |
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>>> How can I acchieve this? |
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>>> |
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>>> Thanks for any help in advance! |
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>>> Cheers! |
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>>> Meino |
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>> It's not clear what you really want. Why would you want USB audio without |
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>> an actual USB audio device? Without a USB audio dongle/device/whatever, |
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>> what would you have to actually produce sound? I can imagine a "dummy" |
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>> USB audio device - but I can imagine it for testing the software, but not |
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>> actually producing any sound, so why would you want it? |
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>> |
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>> Jack |
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> Hi Jack, |
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> |
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> I don't wanted to pollute my posting with non-Linux details...but here |
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> they are: |
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> |
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> I habe a Teensy 3.6 by PJRC (=>https://www.pjrc.com/), which has an |
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> USB-port. This port can be switched between a lot of USB-devices... |
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> ...one of them is an USB-audio device (output). |
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> The MK66FX1M0VMD18 uC has beside an FPU a DSP block. |
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> With a certain (open source) firmware this chip can be used as an |
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> synthesizer. |
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> |
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> To cut costs I wanted no USB dongle to play the sound ... I wanted |
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> to use my Linux PC as "Mega DAC"...so to say. |
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> |
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> Question is: |
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> How can I create such an "receiver" for USB Audio signals to play |
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> them live with my PC? |
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> |
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> Cheers! |
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> Meino |
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|
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That's very different from what I (and I suspect others) thought about |
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your first posting. You want to do USB audio input, not output. In |
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this case, I don't think a usual USB audio device/dongle would even |
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help. My first suggestion is to just plug the USB from the Teensy into |
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the PC, and see what dmesg shows, and what lsusb shows. Searching on |
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the manufacturer and device IDs shown by lsusb might lead to solutions, |
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or at least to further lines of investigation. Also, the Teeny docs |
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might give more information about what kind of USB output their audio |
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produces, and I wonder if you might find some good info on their forum? |
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|
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Jack |
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