[icecast] how to cut very big mp3s ?

[Maroy Akos]

On Sun, 6 Jan 2002, Jack Moffitt wrote:

> Unfortunately MP3 is not really an editable format (another reason to
> use Vorbis).  Its frame headers and frame data don't necessarily come
> together in the file, so chopping the file would require quite a lot of
> reorganization.  The only decent methods I've seen proposed meant
> turning the beginning and ends of files into VBR.
> 
> 
> I think you're only solution is to convert to .wav do your editing, and
> then recompress (for mostly voices you'd probably want to downsample
> etc).

My experience is to the contrary: cutting mp3 files with a simple tools 
like dd works OK. Just calculate the amount you want to cut (128 kb/s = 
128/8 kB/s, say you want 30 minute cuts, which is 30*60 secs, cut the file 
into (128/8) * (30*60) byte chunks).

Akos

--- >8 ----
List archives:  http://www.xiph.org/archives/
icecast project homepage: http://www.icecast.org/
To unsubscribe from this list, send a message to 'icecast-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.