sound output class instead of i2s

[badgeek]

what do you think? @ChrisMicro

espsynth86/src/SoundOutput.h

Line 69 in 3368957

class SoundOutput

[ChrisMicro]

The main reason why I made the I2S class is to be compatible with the Arduino I2S definition:
https://www.arduino.cc/en/Reference/I2S

The advantage it the compatibility with the STM32GENERIC implementation here
https://github.com/ChrisMicro/STM32GENERIC/tree/master/STM32/libraries/I2S

With this the software can easily ported between this two MCU architectures.

Also Adafruit has adopted the API:
https://github.com/adafruit/Adafruit_ZeroI2S

The higher level functions should be in a separate class like described in the Arduino Sound Library:
https://www.arduino.cc/en/Reference/ArduinoSound

[badgeek]

have you test this on stm32 blue pill? how does it sound ? with or without dac?

[ChrisMicro]

Not with the BluePill. I used the STM32F407 Discovery
https://github.com/ChrisMicro/Arduino_STM32F4_Discovery

and the cheaper STM32F411 Discovery

and the STM32F407 Black:
https://wiki.stm32duino.com/index.php?title=STM32F407