Ardour 2 File Export Problem with SRC
Recent versions of Ardour 2.8.x can export files to the native session sample
rate, but cannot successfully export to a different sample rate. Exporting
with SRC produces a truncated file.
This can be worked around by exporting without SRC and using command line
program sndfile-resample (part of the samplerate-programs package in Debian)
to convert, and sox to dither to a reduced bit-depth. It should be possible to
use sox to convert sample rate, but in my tests I was unable to make it do a
high quality conversion. (This was probably pilot error and not a problem
with sox, but I didn't have time to investigate further).
To convert a file from 48kHz to 44.1kHz at highest quality:
sndfile-resample -to 44100 -c 0 infile outfile
To reduce bit depth to 16 bit with triangular PDF dither:
sox infile -b 16 outfile dither
Note that sndfile-resample requires a space between a command line option and