13620cc4db
The "spacing" of "buffer structure" is confusing, use the "channel count" instead. Testing performed on nrf52840 feather: Play stereo and mono, 8- and 16-bit, 8kHz RawSamples representing 333.33Hz square waves. Use both mono and stereo PWMAudioOut instances. Scope the RC-filtered signal and use the scope's frequency measurement function, verify the frequency is 333 or 334Hz in all tested cases. In the "stereo output" cases, verify both the L and R channels. Verify the output amplitude is the same in both channels. In the "stereo output" cases, run a second test where the L channel's amplitude is attenuated 50%. Verify the output amplitude is correct in each channel. |
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| atmel-samd | ||
| cxd56 | ||
| nrf | ||
| stm32f4 | ||
| unix | ||