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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"><HTML><HEAD><TITLE>Basic command line switch reference</TITLE><META NAME="description" CONTENT="Command line switch reference"><META NAME="keywords" CONTENT="lame"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso_8859_1"><LINK REL="STYLESHEET" HREF="lame.css"></HEAD><BODY TEXT=#000000 BGCOLOR=#F9FBFB LINK=#006666 VLINK=#4C4C4C ALINK=#995500><H1>Basic command line switch reference</H1><br>Only the most usual switches are described here. However those should be sufficient for the vast majority of users. <P> <TABLE CELLPADDING=3 BORDER="1"> <TR VALIGN="TOP"> <TD ALIGN="LEFT" nowrap><b>switch</b></TD> <TD ALIGN="LEFT" nowrap><b>parameter</b></TD> </TR> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#-abr">--abr</a></kbd></td> <td align="LEFT" nowrap>average bitrate encoding</td> </tr> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#b">-b</a></kbd></td> <td align="LEFT" nowrap>bitrate (8...320)</td> </tr> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#-decode">--decode</a></kbd></td> <td align="LEFT" nowrap>decoding only</td> </tr> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#f">-f</a></kbd></td> <td align="LEFT" nowrap> fast mode</td> </tr> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#h">-h</a></kbd></td> <td align="LEFT" nowrap>high quality</td> </tr> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#-help">--help</a></kbd></td> <td align="LEFT" nowrap> help</td> </tr> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#m">-m m</a></kbd></td> <td align="LEFT" nowrap>mono mode</td> </tr> <tr valign="TOP"> <td align="LEFT" nowrap><kbd><a href="#V">-V</a></kbd></td> <td align="LEFT" nowrap>VBR quality setting (0...9)</td> </tr></TABLE><BR><dl> <dt><strong>* <kbd>--abr n</kbd><a name="-abr"> average bitrate encoding</a></strong> </dl><dl> <dd>Turns on encoding with a targeted average bitrate of n kbits, allowing to use frames of different sizes. The allowed range of n is 8-320, you can use any integer value within that range. <dt><br> </dt> <hr width="50%" noshade align="center"> <br></dl><dl> <dt><strong>* <kbd>-b n</kbd><a name="b"> bitrate</a></strong> </dt></dl><dl> <dd>For MPEG1 (sampling frequencies of 32, 44.1 and 48 kHz)<br> n = 32,40,48,56,64,80,96,112,128,160,192,224,256,320<br> <br> For MPEG2 (sampling frequencies of 16, 22.05 and 24 kHz)<br> n = 8,16,24,32,40,48,56,64,80,96,112,128,144,160<br> <br> Default is 128 kbs for MPEG1 and 80 kbs for MPEG2. <dt><br> </dt> <hr width="50%" noshade align="center"> <br></dl><dl> <dt><strong>* <kbd>--decode</kbd><a name="-decode"> decoding only</a></strong> </dt></dl><dl> <dd>Uses LAME for decoding to a WAV file. The input file can be any input type supported by encoding, including layer I,II,III (MP3). <dt><br> <br> </dt> <hr width="50%" noshade align="center"> <br> <dl> </dl> <dt><strong>* <kbd>-f</kbd><a name="f"> fast mode</a></strong> </dt></dl><dl> <dd> This switch forces the encoder to use a faster encoding mode, but with a lower quality. <dt><br> <br> </dt> <hr width="50%" noshade align="center"> <br> <dl> </dl> <dt><strong>* <kbd>-h</kbd><a name="h"> high quality</a></strong> </dt></dl><dl> <dd> Use some quality improvements. Encoding will be slower, but the result will be of higher quality.<br> This switch is always enabled when using VBR. <dt><br> <br> </dt> <hr width="50%" noshade align="center"> <br> <dl> </dl> <dt><strong>* <kbd>--help</kbd><a name="-help"> help</a></strong> </dt></dl><dl> <dd> Display a list of all available options. <dt><br> <br> </dt> <hr width="50%" noshade align="center"> <br> <dl> </dl> <dt><strong>* <kbd>-m m</kbd><a name="m"> mono mode</a></strong> </dt></dl><dl> <dd>The input will be encoded as a mono signal. <dt><br> <br> </dt> <hr width="50%" noshade align="center"> <br> <dl> </dl> <dt><strong>* <kbd>-V 0...9</kbd><a name="V"> VBR quality setting</a></strong></dt></dl><dl> <dd> Enable VBR (Variable BitRate) and specifies the value of VBR quality.<br> default=4<br> 0=highest quality. </dl></BODY></HTML>⌨️ 快捷键说明
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