--- Maciej Komosinski <[EMAIL PROTECTED]> wrote: > > | I have a stereo wav 44 kHz and would like to make a high-quality > > | mono. No matter which options I use, the output mp3 seems to > > | miss high frequencies. Even if the encoding quality is high, > > | and bitrate is high, the sound quality is low (with mode=mono). > > | Is there some forced low-pass filtering? > > > > lame --abr 100 -q 0 --nspsytune -m -a -k stereofile.wav monofile.mp3 > > I tried everything except --nspsytune > what is this option? it is not documented.
Search Google for "nspsytune" and you'll find a lot of infomation on it. I had just checked this myself the other night, and found this description here: http://users.belgacom.net/gc247244/index.html < Click on "Quality" --------------------------------- --nspsytune Uses Naoki Shibata's advanced psycho accoustic model enhancements. Improves many things: 1. Method to calculate tonality 2. Method to calculate ATH 3. Use -X0 and 'careful noise shaping' when encoding in CBR mode 4. Method to switch between long and short block 5. Allocates more bits to short block in which attack exists 6. Method to calculate masking in mid-side stereo 7. Method to switch between midside stereo and regular stereo frames 8. Better bitreservoir handling Allows lower bitrates and is overall more efficient and quality yielding than the default LAME gpsycho. Fixes problems on most of the hardest tracks and solved all JS problems I know. --------------------------------- <S> __________________________________________________ Do You Yahoo!? Yahoo! Finance - Get real-time stock quotes http://finance.yahoo.com _______________________________________________ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
