3.97b2 -b 40 -m m -f
Z:\test\noreplaygain>lame 16-22mono15min.wav -b 40 -m m -f
LAME 3.97 (beta 2, Nov 29 2005) 32bits (http://www.mp3dev.org/)
CPU features: MMX (ASM used), SSE (ASM used), SSE2
Using polyphase lowpass filter, transition band: 10403 Hz - 10669 Hz
Encoding 16-22mono15min.wav to 16-22mono15min.wav.mp3
Encoding as 22.05 kHz 40 kbps single-ch MPEG-2 Layer III (8.8x) qval=7
Frame | CPU time/estim | REAL time/estim | play/CPU | ETA
34457/34457 (100%)| 0:08/ 0:08| 0:08/ 0:08| 105.89x| 0:00
-------------------------------------------------------------------------------
kbps mono % long switch short %
40.0 100.0 66.3 16.7 17.1
ReplayGain: -14.9dB
3.97b2 -b 40 -m m -f --noreplaygain
Z:\test\noreplaygain>lame 16-22mono15min.wav -b 40 -m m -f --noreplaygain
LAME 3.97 (beta 2, Nov 29 2005) 32bits (http://www.mp3dev.org/)
CPU features: MMX (ASM used), SSE (ASM used), SSE2
Using polyphase lowpass filter, transition band: 10403 Hz - 10669 Hz
Encoding 16-22mono15min.wav to 16-22mono15min.wav.mp3
Encoding as 22.05 kHz 40 kbps single-ch MPEG-2 Layer III (8.8x) qval=7
Frame | CPU time/estim | REAL time/estim | play/CPU | ETA
34457/34457 (100%)| 0:06/ 0:06| 0:06/ 0:06| 141.19x| 0:00
-------------------------------------------------------------------------------
kbps mono % long switch short %
40.0 100.0 66.3 16.7 17.1
3.97b1 -b 40 -m m -f
Z:\noreplaygain>lame 16-22mono15min.wav -b 40 -m m -f
LAME 3.97 (beta 1, Sep 29 2005) 32bits (http://www.mp3dev.org/)
CPU features: MMX (ASM used), SSE (ASM used), SSE2
Using polyphase lowpass filter, transition band: 10403 Hz - 10669 Hz
Encoding 16-22mono15min.wav to 16-22mono15min.wav.mp3
Encoding as 22.05 kHz 40 kbps single-ch MPEG-2 Layer III (8.8x) qval=7
Frame | CPU time/estim | REAL time/estim | play/CPU | ETA
34457/34457 (100%)| 0:39/ 0:39| 0:39/ 0:39| 22.529x| 0:00
-------------------------------------------------------------------------------
kbps mono % long switch short %
40.0 100.0 66.3 16.7 17.1
ReplayGain: -14.9dB
3.97b1 -b 40 -m m -f --noreplaygain
Z:\noreplaygain>lame 16-22mono15min.wav -b 40 -m m -f --noreplaygain
LAME 3.97 (beta 1, Sep 29 2005) 32bits (http://www.mp3dev.org/)
CPU features: MMX (ASM used), SSE (ASM used), SSE2
Using polyphase lowpass filter, transition band: 10403 Hz - 10669 Hz
Encoding 16-22mono15min.wav to 16-22mono15min.wav.mp3
Encoding as 22.05 kHz 40 kbps single-ch MPEG-2 Layer III (8.8x) qval=7
Frame | CPU time/estim | REAL time/estim | play/CPU | ETA
34457/34457 (100%)| 0:06/ 0:06| 0:06/ 0:06| 137.50x| 0:00
-------------------------------------------------------------------------------
kbps mono % long switch short %
40.0 100.0 66.3 16.7 17.1
LAME 3.97b2 is much better. Also the "--noreplaygain" option is slightly faster (I tried this three times to make sure).
The test PC has a different faster setup now. That's why I tested LAME 3.97b1 again.