* Don't disable DAC when other audio output is using it
* Persistent audio mute revisions
* Moved persistent audio mute code to audio.cpp
* Make "Disable AK speaker amp" take effect immediately
* Update spectrum_collector.cpp
lower case correction
* Update spectrum_collector.cpp
Description changed , better explanation.
* Revert "Update spectrum_collector.cpp"
This reverts commit 4a6fc35384dd3007a4cc91c319b68d2b17232a8c.
* Revert "Update spectrum_collector.cpp"
This reverts commit 35cece1cb0b611aec2dcee474168798883da2819.
* Revert "Solving Compile error on gcc10 . Keeping same safety protection about the size of the array ,but with slightly different sintax."
This reverts commit f4db4e2b535cd722ce0f5ee6cd8094d4ba717c4f.
* Recovered CTCSS-Roger_beep-MIC-GAIN from 1.5.1
* Temporary removing ALC-( for AK4951 platorm)