Can BeSweet encode low bitrate mp3s (32kbps, 22050hz)?

[compunerd632]

I tried it and it doesn't seem to work. I set ssrc to 22050 and lame to 32 abr and it crashes with a lame error 47. I did some searching and found something that said mpeg2 was uses for rates below 32000hz, and 32000 works in BeSweet. Does this mean it will not work for anything below 32000 or am I missing something? Thanks for your help.

[Suzahara]

Not sure what a lame error 47 is, but it's possible to go below 32000Hz. From the lame documentation:

=======================================================================
LOW BITRATES
=======================================================================
At lower bitrates, (like 24 kbps per channel), it is recommended that
you use a 16 kHz sampling rate combined with lowpass filtering. LAME,
as well as commercial encoders (FhG, Xing) will do this automatically.
However, if you feel there is too much (or not enough) lowpass
filtering, you may need to try different values of the lowpass cutoff
and passband width (--resample, --lowpass and --lowpass-width options).


Are you using the latest version of besweet? You might also just try LAME alone with a wav input. Could be a besweet handling bug.

[compunerd632]

Yes, I am using the latest stable version. I read in the BeSweet documentation that the lame dll was a custom made one. My thinking was that maybe encoding below 32000hz was disabled. I guess I need to try to find a default lame dll compile and see if that fixes it.