Brent, CBR and ABR lowpass bands roughly correspond. (CBR bit rates must match specific values, while ABR bit rates can span between those values.) The lowpass values for VBR mode are chosen differently, since this mode seeks first a consistent quality while minimizing rate, rather than a consistent bit rate while maximizing quality.
If you are using the command line front end, LAME should report the details of the lowpass band, "Using polyphase lowpass filter, transition band: " ... As the lowpass tuning may possibly change, one way to construct a handy reference chart is to collect all the parameter settings of interest, and run a script to extract the filter band information from the current LAME release. Out of curiosity, why are you interested in so many settings such that manually extracting the information is not efficient? Kind regards, - John Weeks, Brent wrote: > > Is there a documented list of lowpass frequency defaults chosen by LAME for > each bit-rate and mono/stereo/joint stereo options? > > Do these defaults vary with constant vs. average vs. variable bit-rate > selection? > > Muchas gracias for any information along these lines. It would allow me to > avoid running tests myself for all these different options. > > Brent > _______________________________________________ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
