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Re: [microsound] Burning 1 second long audiotracks



One issue is that track beginnings and endings need to line up with the disc sectors. Most burning apps pad the tracks to meet the sectors, and I imagine this is why it constrains the length to more than 2 seconds.

You might look into CDRDAO. It is written for Linunx, but should also compile on OSX. There's also a graphical front-end called GCDMaster [linked to on the CDRDAO page] which alows you to edit the track markers in your audio file.

One thing that is "hardcoded" in the CD spec for sure is no more than 99 tracks on a disc. So your CD of one second tracks will have to be 99 seconds long max!

d.

from:  http://cdrdao.sourceforge.net/

CDRDAO
Disk-At-Once Recording of Audio and Data CD-Rs/CD-RWs
Focus

Cdrdao records audio or data CD-Rs in disk-at-once (DAO) mode based on a textual description of the CD contents (toc-file).

Advantages of Disk-At-Once (DAO) Recording

Recording in disk-at-once mode writes the complete disc, i.e. lead-in, one or more tracks and lead-out, in a single step. The commonly used track-at-once (TAO) mode writes each track independently which requires link blocks between two tracks. Older CD-recorder models forced a two second pause (pre-gap) between two tracks whereas newer models allow adjusting of the pause length in TAO mode reducing the number of link blocks to a minimal amount. However, with TAO it is generally not possible to define the data that is written in pre-gaps. But exactly this feature makes audio CD recording interesting, e.g. by creating hidden bonus tracks or track intros in pre-gaps like it is common habit on commercial CDs.
Finally, DAO recording is the only way to write data to the unused R-W sub-channels for e.g. CD-G or CD-TEXT.


Features

* Full control over length and contents of pre-gaps (pause areas between tracks). Pre-gaps may be completely omitted, e.g. for dividing live recordings into tracks.
* Control over sub-channel data like:
o catalog number
o copy, pre-emphasis, 2-/4-channel flags
o ISRC code
o index marks
* Support for exact audio, data and mixed mode CD copying.
* Support for R-W sub-channel writing.
* Tracks may be composed of different audio files supporting non destructive cut.
* Accepts WAVE and raw audio files.
* CD-TEXT reading and writing with drives that support it.
* CDDB access to automatically create CD-TEXT data.
* Support for on-the-fly copying.



steinbrüchel wrote:
i tried all this and have until now not found out any way to burn (or
manufacture) a track on a cd that lasts less then 4 seconds. i've burned a
track on a cd once that lasts 2 seconds and it still indicated a length of 4
seconds.

i think it has to do with the space the index marker and track information
is being used for each track. but not sure...


Am 17.11.2004 17:42 Uhr schrieb "batch totem" unter <totem_tm@xxxxxxxx>:


does anyone here have any experience with burning audiotracks on a cd that
last for less than 2 seconds?

my cd burner insists that the minimal tracklenght must me set to 2 seconds and
firthermore it ignores when you set the preset 2 seconds pause between tracks
to o sec



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