arduino-libraries/ArduinoSound

WAVE file header issue

speccy88 opened this issue · 1 comments

speccy88 commented

ffmpeg on Linux adds a LIST section between fmt and data when converting an audio file to WAVE.

On the image below, you have the same file exported by ffmpeg on the left and Audacity on the right.
image

WAVE file with the LIST section don't work with the library right now.

there is no easy way with ffmpeg to remove this metadata. Getting this to work would allow a lot more files to work correctly with the library.

don commented

When I add the bitexact flag, ffmpeg does not write the LIST-INFO header.

say -o hello.aiff hello
ffmpeg -i hello.aiff -bitexact -ac 2 hello.wav