<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9"> <TITLE>The Linux MP3-HOWTO : Encoding from Audio.</TITLE> <LINK HREF="MP3-HOWTO-10.html" REL=next> <LINK HREF="MP3-HOWTO-8.html" REL=previous> <LINK HREF="MP3-HOWTO.html#toc9" REL=contents> </HEAD> <BODY> <A HREF="MP3-HOWTO-10.html">Next</A> <A HREF="MP3-HOWTO-8.html">Previous</A> <A HREF="MP3-HOWTO.html#toc9">Contents</A> <HR> <H2><A NAME="s9">9. Encoding from Audio.</A></H2> <P>Firstly, make sure you have enough space on your drive. At CD quality, 44.1 Khz 16 Bit stereo, 1 minute takes nearly 10 Mb (5 MB per channel). <P>I normally record at DAT quality, which is 48 Khz 16 Bit stereo. <P>Using wavrec I use the following syntax: <HR> <PRE> [dj@megajukebox]$ /usr/local/bin/wavrec -t 60 -s 48000 -S /mp3/temp.wav </PRE> <HR> The first part is an explicit path to wavrec. The '-t 60' specifies the length of time to record for, in seconds. <P>The third option, -s 48000 refers to the sample rate in samples/sec. (48000 is the rate for DAT, 44100 is CD) <P>The last option is the path to the output file. <P>To see the full set of options, run waverec -help, or see it's man page. <P>This will produce your WAV file Next you will need to encode it into MP3 format. <P>Use bladdenc with the following command line. <HR> <PRE> [dj@megajukebox]$ /usr/local/bin/bladeenc <em/[source file] [destination file]/ -br 256000 </PRE> <HR> <P>The -br option sets the bit rate, in this case I've set the rate to the maximum rate of 256k bits/s. The path to bladeenc may also be different on your system to the one I've used in my example. <P>To see the full set of options, run bladeenc -help, actually this is an invalid option, but will display the list of options. <P>The same encoding using Lame (as well as Gogo as it is based on Lame) would need the command line <HR> <PRE> [dj@megajukebox]$ /usr/local/bin/lame <em/[source file] [destination file]/ -b 256 </PRE> <HR> <P> <HR> <A HREF="MP3-HOWTO-10.html">Next</A> <A HREF="MP3-HOWTO-8.html">Previous</A> <A HREF="MP3-HOWTO.html#toc9">Contents</A> </BODY> </HTML>
