question: returns the bytes per frame of this wav . concode_field_sep int numChannels concode_elem_sep int bitsPerSample concode_elem_sep int sampleRateHz concode_elem_sep long dataSize concode_elem_sep long dataStartPosition concode_elem_sep int encoding concode_elem_sep int averageBytesPerSecond concode_elem_sep int blockAlignment concode_field_sep int getEncoding concode_elem_sep int getBitrate concode_elem_sep long getPosition concode_elem_sep long getTimeUs concode_elem_sep boolean hasDataBounds concode_elem_sep void setDataBounds concode_elem_sep int getNumChannels concode_elem_sep int getSampleRateHz concode_elem_sep long getDurationUs
target: int function ( ) { return blockAlignment ; }