[plug] [revisited] mp3 downsizing

[Timothy White]

Gavin Chester wrote:

>On Fri, 2004-12-31 at 00:43, Timothy White wrote:
>  
>
>>Gavin Chester wrote:
>>
>>    
>>
>>>On Thu, 2004-12-30 at 23:19, Jason Belcher wrote:
>>>-snip- 
>>> 
>>>
>>>      
>>>
>>>>There's various utilities to rename files based on tags/retag files
>>>>based on file names. If it's just basic info such as Track Name,
>>>>Artist, Album, etc you could try using one of those to rename them
>>>>all, then transcode them, the retag based on your filename format.
>>>>Could do it for all your tags but you'd have some cumbersome filenames
>>>>there.
>>>>   
>>>>
>>>>        
>>>>
>>>-snip-
>>>
>>>Thanks, Jason.  I'm open to any ideas.  Any names of those tools that
>>>you are thinking about, so I can check them out?
>>> 
>>>
>>>      
>>>
>>Easytag under Linux. (Just one of many.)
>>I'm using Debian so 'apt-cache search mp3 tag'
>>I use it cause I've found it good and it does ogg vorbis as well.
>>
>>Tim
>>-- 
>>    
>>
>
>Maybe I'm missing something, but tag editors I don't need - tag copying
>across downsampled files I do need.  I don't see Easytag offering that
>option  - or do I need to RTFM a bit more?  
>  
>
As said in a previous post. Before downsampling the MP3s use a tag 
editor to rename the files with all the information you want to keep in 
the tag.
e.g. Artist - Album - Title - Track #.mp3
Then downsample the files ensuring the new files have the same 
meaningful names (maybe with '(DS)' tacked onto the end) and then use 
the tag editor to fill in the tags from the name.

In easy editor this would mean doing a 'Tag and File name scan' with 
'Rename Files' to move the tag to the file name then 'fill tags' to Tag 
the files from the name.

It is a lot easier if you keep at least the basic tag information 
synchronised with your file name.

e.g. For all my music I name it in the format 'Artist - Title.mp3' so 
that if I ever lose the tags or convert them to wav etc... I will still 
have some idea of the song. I don't care about Album and Track # or 
Genre (although I like it) so I can leave them out of the name and use 
them if there are in the tags but other wise don't worry about them.

Tim

p.s. It would be nice if Lame could take the tag information with it. 
Maybe a little script using cmd line tag editors ether side of lame to 
store the information and recover it.
So something like below (No language in particular) (Use MP3::Info or 
similar you could skip renaming files)
If you need more help, just call and I will probably have a working perl 
script for you.

---- Completely untested code that shouldn't work ----
for $file ( @files ){
    $fileout = cut_extension($file) . '(112kb)' . extension($file);
    system('lame -in file -out fileout -downsample -k 112');
    # Use perl MP3::Info or some command line tool
    Use MP3::Info;
    my $tag = get_mp3tag($file);
    set_mp3tag($fileout, $tag);
}
-----

-- 
Tim White - Use the Fox, Luke!
PGP/GPG id: 602E944D, Pub Key Serv: subkeys.pgp.net
Fingerprint: 04C2 9682 B7B2 3006 009D  A9F3 067E EDCD 602E 944D
Hi! I'm a .signature virus! Copy me into your ~/.signature to help me spread!
--

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: OpenPGP digital signature
URL: <http://lists.plug.org.au/pipermail/plug/attachments/20041231/5200185a/attachment.pgp>