级别: 风云使者
- 注册时间:
- 2006-03-12
- 在线时间:
- 54小时
- 发帖:
- 6604
|
noath 根本没有这个 LAME 32bits version 3.97 ( http://www.mp3dev.org/) usage: D:\music\RazorLame\lame.exe [options] [outfile]
and/or can be "-", which means stdin/stdout.
RECOMMENDED: lame -V2 input.wav output.mp3
OPTIONS: Input options: -r input is raw pcm -x force byte-swapping of input -s sfreqsampling frequency of input file (kHz) - default 44.1 kHz --bitwidth winput bit width is w (default 16) --scale scale input (multiply PCM data) by --scale-l scale channel 0 (left) input (multiply PCM data) by --scale-r scale channel 1 (right) input (multiply PCM data) by --mp1input input file is a MPEG Layer I file --mp2input input file is a MPEG Layer II file --mp3input input file is a MPEG Layer III file --nogap <...> gapless encoding for a set of contiguous files --nogapout output dir for gapless encoding (must precede --nogap) --nogaptags allow the use of VBR tags in gapless encoding
Operational options: -a downmix from stereo to mono file for mono encoding -m (j)oint, (s)imple, (f)orce, (d)dual-mono, (m)ono default is (j) or (s) depending on bitrate joint = joins the best possible of MS and LR stereo simple = force LR stereo on all frames force = force MS stereo on all frames. --preset type type must be "medium", "standard", "extreme", "insane", or a value for an average desired bitrate and depending on the value specified, appropriate quality settings will be used. "--preset help" gives more info on these --comp choose bitrate to achive a compression ratio of --replaygain-fast compute RG fast but slightly inaccurately (default) --replaygain-accurate compute RG more accurately and find the peak sample --noreplaygain disable ReplayGain analysis --clipdetectenable --replaygain-accurate and print a message whether clipping occurs and how far the waveform is from full scale --freeformatproduce a free format bitstream --decodeinput=mp3 file, output=wav -t disable writing wav header when using --decode
Verbosity: --disptime print progress report every arg seconds -S don't print progress report, VBR histograms --nohistdisable VBR histogram display --silentdon't print anything on screen --quiet don't print anything on screen --brief print more useful information --verbose print a lot of useful information
Noise shaping & psycho acoustic algorithms: -q = 0...9. Default -q 5 -q 0: Highest quality, very slow -q 9: Poor quality, but fast -h Same as -q 2. Recommended. -f Same as -q 7. Fast, ok quality
CBR (constant bitrate, the default) options: -b set the bitrate in kbps, default 128 kbps --cbr enforce use of constant bitrate
ABR options: --abr specify average bitrate desired (instead of quality)
VBR options: -v use variable bitrate (VBR) (--vbr-old) --vbr-old use old variable bitrate (VBR) routine --vbr-new use new variable bitrate (VBR) routine -V nquality setting for VBR. default n=4 0=high quality,bigger files. 9=smaller files -b specify minimum allowed bitrate, default 32 kbps -B specify maximum allowed bitrate, default 320 kbps -F strictly enforce the -b option, for use with players that do not support low bitrate mp3 -t disable writing LAME Tag -T enable and force writing LAME Tag
PSY related: --short use short blocks when appropriate --noshort do not use short blocks --allshort use only short blocks --notempdisable temporal masking effect --nssafejoint M/S switching criterion --nsmsfix M/S switching tuning [effective 0-3.5] --interch x adjust inter-channel masking ratio --ns-bass x adjust masking for sfbs 0 - 6 (long) 0 - 5 (short) --ns-alto x adjust masking for sfbs 7 - 13 (long) 6 - 10 (short) --ns-treble x adjust masking for sfbs 14 - 21 (long) 11 - 12 (short) --ns-sfb21 xchange ns-treble by x dB for sfb21
experimental switches: -X n[,m]selects between different noise measurements n for long block, m for short. if m is omitted, m = n -Y lets LAME ignore noise in sfb21, like in CBR -Z [n] currently no effects
MP3 header/stream options: -e de-emphasis n/5/c (obsolete) -c mark as copyright -o mark as non-original -p error protection. adds 16 bit checksum to every frame (the checksum is computed correctly) --nores disable the bit reservoir --strictly-enforce-ISO comply as much as possible to ISO MPEG spec
Filter options: -k keep ALL frequencies (disables all filters), Can cause ringing and twinkling --lowpass frequency(kHz), lowpass filter cutoff above freq --lowpass-width frequency(kHz) - default 15% of lowpass freq --highpass frequency(kHz), highpass filter cutoff below freq --highpass-width frequency(kHz) - default 15% of highpass freq --resample sampling frequency of output file(kHz)- default=automatic
ID3 tag options: --tt audio/song title (max 30 chars for version 1 tag) --ta audio/song artist (max 30 chars for version 1 tag) --tl audio/song album (max 30 chars for version 1 tag) --ty audio/song year of issue (1 to 9999) --tc user-defined text (max 30 chars for v1 tag, 28 for v1.1) --tn
|