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3.5mm Audio Jack
inspector71 edited this page Aug 9, 2018
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If you use the Raspberry Pi 3.5mm audio jack connected to your car's aux (auxiliary) input, sound quality can be improved by adding the following line to your Boot/config.txt file:
audio_pwm_mode=2
This enables the 7bit, 781kHz audio driver released in 2016. Compared to the much-maligned original 11bit, 48kHz driver you should notice the difference ;)
More details are available on the Raspberry Pi forum.
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