This requires the baseband processor to have control over the audio codec which it may or may not have based on the phone that you have.
Of the baseband processor has direct i2c/spi and direct i2s access then, yes, it is possible. If it doesn't, then RCE on the baseband processor is defeated with Signal.
Comments
This requires the baseband processor to have control over the audio codec which it may or may not have based on the phone that you have.
Of the baseband processor has direct i2c/spi and direct i2s access then, yes, it is possible. If it doesn't, then RCE on the baseband processor is defeated with Signal.
Some baseband processors have DMA, rendering all protection useless.