Re: how do i chop wav files with sox
On Fri, Apr 06, 2001 at 04:29:34PM +0100, David Wright wrote: Quoting Carel Fellinger ([EMAIL PROTECTED]): To me a track is (in the context of burning cd's) the entity that is burned on a cd in TrackAtOnce (TAO) mode. The CD-standard prescribes two second pauses in between those tracks. There are some writers that can produce gaps of different length (even 0), but not many. Yes, but you are supposed to be able to eliminate the gaps by recording in DAO mode (disc-at-once), and I think the fiddle is that the track indicator is put into the previous track two seconds before the end. Are you talking of pre-gaps here? They are not prescribed. Bear with me if I'm a little to verbose, and let me ramble on a little more: When you burn in TAO-mode, the burner _itself_ adds two seconds gaps between the blurbs it has to burn, as prescribed by the standard. But there are some burners that allow you to specify the length of this automatically added gap, and some of those even allow for a zero lengthed gap. The blurbs written in TAO may all be composed of several wav-files. For each blurb all the wav-files it contains are concatenated and burned as if it were one big wav-file. DAO is quit a different beast. It writes only one big blurb to disc. If you specify to write several wav-files (audio-tracks) then all of those wav-files are simply concatenated and burned to disc as if it where one big wav-file. So actually DAO resembles TAO for one track. And for both modes the TOC (generated by the burning software) tells were the audio-tracks are located on disc. In DAO it's quit costumary to have several TOC entries pointing into the one blurb written, but nothing stops you from doing the same in TAO (if the software allows it, that is.) In the end it's up to the burning software what gets written into the TOC; it specifies the automatically generated gaps in TAO mode as pre-gaps, but there is no need to specify pre-gaps otherwise. But then, there are some old players, who misinterpreted the standard and (try to) add silence gaps in between all TOC entries:( All the above is as I recall to have read somewhere, so... ... You may be saying the same thing. maybe, but I'm in a verbose mode today, so I rambled on:) ... Fair enough. I thought you were talking about the second level of audio index points, within the audio tracks. Ah, second level indexes, not many a player can cope with those. BTW when splitting wav files, Jake, it's important to make sure they're broken at 2352-byte boundaries so you don't get gaps between them. Good Advice, as some burners choke on inappropriate sized blurbs! -- groetjes, carel
Re: how do i chop wav files with sox
Quoting Carel Fellinger ([EMAIL PROTECTED]): To me a track is (in the context of burning cd's) the entity that is burned on a cd in TrackAtOnce (TAO) mode. The CD-standard prescribes two second pauses in between those tracks. There are some writers that can produce gaps of different length (even 0), but not many. Yes, but you are supposed to be able to eliminate the gaps by recording in DAO mode (disc-at-once), and I think the fiddle is that the track indicator is put into the previous track two seconds before the end. When burning such a track it is quite feasable to combine several wave files on the fly to fill that one track without any pause in between those wav files. Normally, for each track an entry is added to the TOC (table of contents, located at the beginning of the cd prior to any track). But there is nothing stopping you from adding top-level indices to the TOC that point inside those `real' tracks. You may be saying the same thing. And then there is this notion of tracks when *playing* audio cd's. Those tracks are the parts of the cd as decribed by the top-level indices in the TOC. So when I advised to use indices I ment to add entries to the TOC such that tracks (in the context of TAO-burning) got split up in tracks (in the context of audio-cd playing). Fair enough. I thought you were talking about the second level of audio index points, within the audio tracks. BTW when splitting wav files, Jake, it's important to make sure they're broken at 2352-byte boundaries so you don't get gaps between them. Cheers, -- Email: [EMAIL PROTECTED] Tel: +44 1908 653 739 Fax: +44 1908 655 151 Snail: David Wright, Earth Science Dept., Milton Keynes, England, MK7 6AA Disclaimer: These addresses are only for reaching me, and do not signify official stationery. Views expressed here are either my own or plagiarised.
Re: how do i chop wav files with sox
Quoting Price, Tim ([EMAIL PROTECTED]): xcrdao It is packaged in debian - I think it comes with the cdrdao package. You can graphically view a .wav file, choose your track points, have gaps or continuous play, etc. Yes, I was going to point out to the person that suggested using index points instead of tracks that many players can't handle them, and that using tracks should not require any gaps. Most classical CDs will illustrate this point. However, just as some very early CD players would cock this up, there are still some computer players making this mistake and inserting silences into continuous music CDs. That's the player's fault, not the fault of using tracks. Cheers, -- Email: [EMAIL PROTECTED] Tel: +44 1908 653 739 Fax: +44 1908 655 151 Snail: David Wright, Earth Science Dept., Milton Keynes, England, MK7 6AA Disclaimer: These addresses are only for reaching me, and do not signify official stationery. Views expressed here are either my own or plagiarised.
Re: how do i chop wav files with sox
On Wed, Apr 04, 2001 at 12:42:12PM +0100, David Wright wrote: ... Yes, I was going to point out to the person that suggested using I think that was me:) index points instead of tracks that many players can't handle them, and that using tracks should not require any gaps. Most classical CDs will illustrate this point. not sure i understand and/or agree here. Maybe it all depends on what you call a track? To me a track is (in the context of burning cd's) the entity that is burned on a cd in TrackAtOnce (TAO) mode. The CD-standard prescribes two second pauses in between those tracks. There are some writers that can produce gaps of different length (even 0), but not many. When burning such a track it is quite feasable to combine several wave files on the fly to fill that one track without any pause in between those wav files. Normally, for each track an entry is added to the TOC (table of contents, located at the beginning of the cd prior to any track). But there is nothing stopping you from adding top-level indices to the TOC that point inside those `real' tracks. And then there is this notion of tracks when *playing* audio cd's. Those tracks are the parts of the cd as decribed by the top-level indices in the TOC. So when I advised to use indices I ment to add entries to the TOC such that tracks (in the context of TAO-burning) got split up in tracks (in the context of audio-cd playing). However, just as some very early CD players would cock this up, there are still some computer players making this mistake and inserting silences into continuous music CDs. That's the player's fault, not the fault of using tracks. yep. (tracks here in the context of playing audio cd's) -- groetjes, carel
Re: how do i chop wav files with sox
Jake R. Johnson wrote: I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? gramofile (not sure about the exact spelling) might be able to do this, it's for getting the stuff from LPs (vynil) into computer so I guess it has some support for meanigfully (based on silence?) chopping the long audio files. It's packaged for debian. erik
RE: how do i chop wav files with sox
xcrdao It is packaged in debian - I think it comes with the cdrdao package. You can graphically view a .wav file, choose your track points, have gaps or continuous play, etc. -tim PS Sorry all about the legal messages at the bottom of my posts. It is added on by the (exchange) mail server at my work and I am unable to do anything about it. -t -Original Message- From: Erik Steffl [mailto:[EMAIL PROTECTED] Sent: Thursday, 29 March 2001 3:55 To: debian-user@lists.debian.org Subject: Re: how do i chop wav files with sox Jake R. Johnson wrote: I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? gramofile (not sure about the exact spelling) might be able to do this, it's for getting the stuff from LPs (vynil) into computer so I guess it has some support for meanigfully (based on silence?) chopping the long audio files. It's packaged for debian. erik -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] CAUTION This e-mail and any files transmitted with it are privileged and confidential information intended for the use of the addressee. The confidentiality and/or privilege in this e-mail is not waived, lost or destroyed if it has been transmitted to you in error. If you have received this e-mail in error you must (a) not disseminate, copy or take any action in reliance on it; (b) please notify Australia Post immediately by return e-mail to the sender; and (c) please delete the original e-mail.
how do i chop wav files with sox
I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? Thanks
Re: how do i chop wav files with sox
On Wed, Mar 28, 2001 at 08:18:49AM -0600, Jake R. Johnson wrote: I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? You don't want to chop the file, that would imply burning a single wav file split over several tracks, and this would introduce disturbing pauses. You're better of looking for ways to specify indici within a single track. I think you could use cdrecord's -index=list option to achieve this, but I'm not sure. You'll certainly need a wav editor to get that list of indici. -- groetjes, carel
Re: how do i chop wav files with sox
Jake R. Johnson wrote: I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? Maybe with dd or with split, i have only used split long time ago on Solaris, and it was useful with text file, not binary file, don't know about the GNU version... Andrea
Re: how do i chop wav files with sox
On Wed, Mar 28, 2001 at 09:32:16PM +0200, Andrea Vettorello wrote: Jake R. Johnson wrote: I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? Maybe with dd or with split, i have only used split long time ago on Solaris, and it was useful with text file, not binary file, don't know about the GNU version... split can handle binary files, just use -b to specify byte size. I don't think wav will like that though, try using sox to convert them to 'raw' first, then split, then convert to wav again. since wav needs some header info, you can't just split them -- ,---. Name: Alson van der Meulen Personal: [EMAIL PROTECTED] School: [EMAIL PROTECTED] `---' Do you really need your home directory to do any work? -
Re: how do i chop wav files with sox
On Wed, Mar 28, 2001 at 08:07:23PM +0200, Carel Fellinger wrote: On Wed, Mar 28, 2001 at 08:18:49AM -0600, Jake R. Johnson wrote: I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? You don't want to chop the file, that would imply burning a single wav file split over several tracks, and this would introduce disturbing pauses. You're better of looking for ways to specify indici within a single track. I think you could use cdrecord's -index=list option to achieve this, but I'm not sure. You'll certainly need a wav editor to get that list of indici. I just did this last night with cdrdao. See the cdrdao man page section on toc files. To see a sample toc file try: [EMAIL PROTECTED] cdrdao read-toc --device 0,5,0 --driver generic-mmc ./toc_music_cd and look at the toc_music_cd file. Adjust your --device and --driver parameters to suit. -- Ron Golan [EMAIL PROTECTED]
Re: how do i chop wav files with sox
On Wed, Mar 28, 2001 at 08:18:49AM -0600, Jake R. Johnson wrote: I have some really large wav files...120minutes and I would like to chop it into 6 single files so that i have 6 tracks on a cd. How can i do this? use gramofile http://panic.et.tudelft.nl/~costar/gramofile/ Bob
