SamplesPerFrame
samples per frame. Value range is 32 ... 96000, default 256. The waveform bars then land in the levl and aux chunk according to the setting; an aux chunk always contains 1152 samples in mpeg, linear contains 1920. In case a value other than 1920 is delivered for a linear file, then no aux chunk is written. This could lead to extended loading time with 3rd party applications that only evaluate the aux chunk.
Possible values: 32 ... 96000
Default value: 256