initial check-in of openpcd2-audio
fixed write action to 4 bytes
working audio output
added sample interpolation
added lowpass filtering
adjusted buffer size
further reduced the PWM frequency to 31kHz
fixed low frequency problem
removed lowpass again
fixed on-off samling error
adjust length for long file
define for flashing
tool for silence detection
build alphabet sound bites
building adatabase
changed 'build' to Makefile
removed outdated sound filtering
added linefeed at the end
reading flash directory
spelling works