Kuba Orlik
d8a8aae71d
https://video.stackexchange.com/questions/15468/non-monotonous-dts-on-concat-ffmpeg https://stackoverflow.com/questions/15931437/ffmpeg-how-to-control-fps-tbr-tbn-tbc-parameters
ffmpeg -i odcinek1-kuba.wav -ac 1 -filter:a aresample=8000 -map 0:a -c:a pcm_s16le -f data - | hexdump
^ daje waveform w dwubajtowych intach