Set LEVEL_DETECTOR_SPL_8BIT_000_POINT to 52.0 dB.
#174
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This is the value currently used by MakeCode: https://github.com/microsoft/pxt-microbit/blob/v7.1.3/libs/microphone/microphone.cpp#L8 And MicroPython: https://github.com/microbit-foundation/micropython-microbit-v2/blob/v2.1.2/src/codal_app/codal.json#L16 The reason to change it is that the LevelDetectorSPL() minValue default parameter is already 52: https://github.com/lancaster-university/codal-core/blob/509086cc8590465041b15493ab52b56e7071c110/inc/streams/LevelDetectorSPL.h#L124 MicroBitAudio also sets it to the same value: https://github.com/lancaster-university/codal-microbit-v2/blob/v0.2.68/source/MicroBitAudio.cpp#L82 And LevelDetectorSPL will clamp as that being the min. https://github.com/lancaster-university/codal-core/blob/509086cc8590465041b15493ab52b56e7071c110/source/streams/LevelDetectorSPL.cpp#L142-L147
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This is the value currently used by MakeCode:
https://github.com/microsoft/pxt-microbit/blob/v7.1.3/libs/microphone/microphone.cpp#L8
And MicroPython:
https://github.com/microbit-foundation/micropython-microbit-v2/blob/v2.1.2/src/codal_app/codal.json#L16
The reason to change it is that the LevelDetectorSPL() minValue default parameter is already 52:
codal-core/inc/streams/LevelDetectorSPL.h
Lines 123 to 126 in 509086c
MicroBitAudio also sets it to the same value 52.0:
https://github.com/lancaster-university/codal-microbit-v2/blob/v0.2.68/source/MicroBitAudio.cpp#L82
And LevelDetectorSPL will clamp as that being the min.
codal-core/source/streams/LevelDetectorSPL.cpp
Lines 142 to 147 in 509086c
Fixes lancaster-university/codal-microbit-v2#449.