I promised this a while back and got sidetracked by RL. ;) So here it is.
This is what it takes to record broadcasts off the net in ogg format. Using Sox (which is the best sound util ever made) you can also record just about anything that your soundcard puts out; VERBATIM. Sox is a deceptively innocuous utility that endows the user with a huge amount of power and flexibility with sound streams that are routed thru the soundcard. By trade and public presentation, Sox was originally touted as a file format conversion utility. However Sox's real power comes in it's ability to snatch an audio stream from /dev/dsp and convert it into the file format of your choice. In this case, our choice will be Ogg Vorbis. There are fully 24 file formats listed in the Sox man page. You can encode to or convert between all of them. Oddly enough, Ogg Vorbis is not amongst them; at least in the LM82 version of the Sox man pages. The first wrinkle that we encounter is the fact that Sox as installed from the Mandrake LM81/82 CD's does NOT encode Ogg capability. Ogg Vorbis encoding/conversion is indeed supported under Sox, however you need to read the source documentation to catch this clue. To his credit, the current maintainer of Sox Chris Bagwell does give Ogg an honorable mention on his website. Which is: http://home.sprynet.com/~cbagwell/sox.html In order to get Ogg capability we must compile it in. Unfortunately, running rpm --rebuild on sox-12.17.1-3mdk.src.rpm will not do this; it will not detect installed oggvorbis libraries, and you will be forced to do two things. One is to recompile the source code. The other is that you must have the ogg vorbis libraries installed. The next time somebody redoes the sox source rpm it would be nice if their configure routine checks for Ogg Vorbis libs.(HINT HINT nudge nudge) The devels may not be needed, I haven't checked. But this is what I have installed according to Rpmdrake: libogg0 libogg0-devel libvorbis0 libvorbis0-devel If you don't have those, do a search for them using rpmdrake and get them installed off of your installation cd's. Next, make sure that you have the rpm version of Sox installed. Yes I know I just said that the rpm binary version of Sox does not support Ogg; however we need to maintain some semblance of order with regard to the RPM database and in order to do that we are going to cheat a little, since we must deal with a direct source to binary install. Make sure you have the Sox rpm installed. Now we go to CVS and download the latest Sox code. That's right, if we've got to go pure source we might as well go to the....well, the source. Hehe. Go to your home or main /tmp directory and enter the following as a non-root user in a terminal command line: cvs -d :pserver:[EMAIL PROTECTED]:/cvsroot/sox login (when prompted for a password here hit enter) cvs -z3 -d :pserver:[EMAIL PROTECTED]:/cvsroot/sox co sox And after the last line you should see a "sox" directory created and the CVS download will commence. After you have the entire CVS tree, su to root. Make sure you su to root. Descend into the "sox" directory and enter the following two commands: ./configure make After that we need to edit the Makefile that we just made. Do vi Makefile If you are not a member of the one true vi faith, you may be able to scrape by with another of the lesser heretic faiths. I personally don't recommend it, however. In any case, at the beginning of the Makefile you will see the following: ______________________________________________________________ # Makefile.in # # Processed by configure into a Makefile. We assume the environment in # which we are running is a POSIX'y environment. Thus, all of the standard # POSIX tools are available. # # Paths srcdir = . prefix = /usr/local exec_prefix = ${prefix} bindir = ${exec_prefix}/bin libdir = ${exec_prefix}/lib mandir = ${prefix}/man includedir = ${prefix}/include *****snip****** Change "prefix = /usr/local" to "prefix = /usr". That's all. Save and exit. Now from the "sox" CVS dir do make install And you will see stuff happen. You should be root as you do "make install". Now do "sox -h" and you should see the following: _____________________________________________________________ [elx@tamriel elx]$ sox -h sox: Version 12.17.3 Usage: [ gopts ] [ fopts ] ifile [ fopts ] ofile [ effect [ effopts ] ] gopts: -e -h -p -v volume -V fopts: -r rate -c channels -s/-u/-U/-A/-a/-i/-g/-f -b/-w/-l/-d -x effect: avg band bandpass bandreject chorus compand copy dcshift deemph earwax echo echos fade filter flanger highp highpass lowp lowpass map mask pan phaser pitch polyphase rate resample reverb reverse silence speed stat stretch swap synth trim vibro vol effopts: depends on effect Supported file formats: aiff al alsa au auto avr cdr cvs dat vms gsm hcom la lu maud nul ossdsp prc raw sb sf sl smp sndt sph 8svx sw txw ub ul uw voc vorbis wav wve ______________________________________________________________ The word "vorbis" above means that we were successful, and we can now encode in that file format gift from the gods, Ogg Vorbis. The reason that we changed the Makefile was because this puts the binaries right over where the rpm places them. Now the rpm database identifies your compiled source binaries as having been installed by rpm. Which they were not...but you can still remove everything using rpmdrake. It also precludes the possibility that you might ever have two copies of all the sox binaries on your system; one in /usr/bin and the other in /usr/local/bin. This email is big, so I'll break this up into several installments. Next email I'll describe the command line options for grabbing audio with Sox and also some aspects of Realplayer. Best Regards, LX -- 같같같같같같같같같같같같같같같같같같같같같같같같같� Kernel 2.4.18-6mdk Mandrake Linux 8.2 Enlightenment 0.16.5-11mdk Evolution 1.0.2-5mdk Registered Linux User #268899 http://counter.li.org/ 같같같같같같같같같같같같같같같같같같같같같같같같같�
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