1.3 KiB
TODO
- reduce lib size, librubberband is 1.3 M (one .so file)
- maybe we are compiling too many source files
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TODO: see Android.mk in librubberband and copy options from
LOCAL_CFLAGS
O> 16 KB paging for NDK libs
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target SDK level 35
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record the accelero and check why repeated fast beats result in occasional detection outages
- guess: the threshold gets pushed so high that the later beats are not detected properly
- maybe we need the
*0.6factor after all (but verify this!)
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minimum amplitude for accelero (avoid detecting e.g. when phone is lying flat and you hammer on the table)
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filter away bad SQI areas of the signal (do not detect steps if we have bad SQI)
Nice-To
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myband PlaybackEngine.cpp has latency management and other audio performance related features. Check if the app can be improved (audio wise) by using that code instead.
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Sampling rate for accelerometer - do we need to measure actual sensor FPS, or is it stable 50 Hz?
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re-calculate IIR filter coefficients. probably not critical for 50 Hz vs. 60 Hz.
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re-visit sampling rate and channel count. MixingPlayer currently forces both to 48000 and 2 respectively, regardless of what Android says would be optimal.
Before release
- check librubberband license