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Multichannel #2

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marcelomanzo opened this issue Jun 7, 2021 · 1 comment
Open

Multichannel #2

marcelomanzo opened this issue Jun 7, 2021 · 1 comment

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@marcelomanzo
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would be possible to cast multi channel?

I am looking for Front Left / Front Right / Rear Left / Rear Right.

@tomek-o
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tomek-o commented Jun 7, 2021

Probably.
Looking on scream screenshot - there is quadrophonic, so it should be possible, though I've never tried opening audio device in this mode. Maybe 5.1 would have better support in software?
As for STM32 - there are only two DAC outputs (at least on STM32F429ZI), so for the other two I2S would need to be used. I've used popular PCM5102A module in the past (less than $4, so relatively expensive though with convenient jack socket and driving headphones without problems). TDA1543A is cheaper, but I haven't tested ones I've got yet.
Possible problem to be aware of is phase shift when using two devices.

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