[TW#24051] i2s driver problem since esp-idf V3.0

espressif / esp-idf

Espressif IoT Development Framework. Official development framework for Espressif SoCs.

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[TW#24051] i2s driver problem since esp-idf V3.0 #2124

Closed karawin closed 5 years ago

karawin commented 6 years ago

Environment

Development Env: [Make]
Operating System: [Windows]
Power Supply: [USB]

Problem Description

i2s driver of the latest esp-idf V3.0 and V3.1 with or without the new API use is failing. The sound is distorted and not in the right tone. Replacing the driver with the one of the V3.0 rc1 to retrieve a good sound on i2s output to an external dac. The project used: https://github.com/karawin/Ka-Radio32

All init and use code checked. To reproduce, simply recompile the project on a board with a dac.

Expected Behavior

Actual Behavior

At least, the same behavior as the old driver.

karawin commented 6 years ago

https://github.com/karawin/Ka-Radio32/issues/36

costaud commented 5 years ago

@karawin Hi, did you try the example in idf? https://github.com/espressif/esp-idf/tree/master/examples/peripherals/i2s_adc_dac

karawin commented 5 years ago

The problem is not the i2s itself but with the new API pushing a single sample takes too long for a real time decoding.

costaud commented 5 years ago

Oh, you are using external DAC, sorry for the misleading.

karawin commented 5 years ago

No problem, the bug is the same (and worst) with the embedded DAC.

karawin commented 5 years ago

I close this issue because it is partially wrong. It is only a problem of performance when sending a single sample at a time. Too bad, but with a little buffering, it is ok.