The value in #define buffSize 128 can be increased to provide additional memory for playback, which will reduce these issues. If pops or clicks are heard during playback, it is most likely that buffer underruns are occurring or the volume is just too high.Įnsure that #define SD_FULLSPEED is uncommented in pcmConfig.h. Popping or clicking when music is playing.Ramps are built into the library to prevent popping when PWM is engaged, disabled, and between music tracks of the same sample rate. ![]() Pop or click when playback is started or stopped:.Volume control allows good range in volume control, but will distort if volume too high The isPlaying() disable() or noInterrupts() functions can be used to prevent parallel code execution. This library can be very processor intensive, and code execution during playback will be slower than normal Processing load can be reduced by using lower quality sounds encoded at a lower sample rate (8khz minimum) May interfere with other libraries that rely on interrupts. Can be changed during playback for full control of looping.
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