[BNM] Sound File Geeks...

[Antony Jones]

It probably uses VBR or something (Variable Bit Rate).

Try audacity or VLC. They should give you more detail about how the file
is encoded than you'll ever need.

Ant

On Thu, 2009-07-02 at 17:51 +0100, Mike Pelton wrote:

> Am embarrassed not to know the answer to this one myself, so please be
> gentle....
> 
> This is all about "how do I find out which codecs are being used to play a
> file?"...
> 
> I have an MP3 file which plays in Windows Media Player BUT it won't render
> in GraphEdit, the very splendid and usually infallible DirectShow utility
> that automatically wires codecs together by negotiating the input and output
> types of each one.
> 
> What I need to be able to do (in code) is to create a string of codecs that
> will play it.
> 
> So.. given that I have all the codecs I need (which we know because the file
> plays in WMP) how do I work out what's being used to render the file by WMP
> (or anything else that will render it)?
> 
> The file is the very splendid London Underground
> (http://solo2.abac.com/themole/london_underground_song.htm) (DON'T give this
> to the kids or play it in the office out loud) - the reason it's significant
> for me is that there's clearly a common class of MP3 files that are encoded
> in some way I haven't seen before and I'm developing code (www.Vixer.co.uk)
> that needs to be able to unpick MP3's.
> 
> Any words of wisdom very welcome and the normal consultancy fee (a pint)
> will be payable to the first N helpful replies (N to be determined by how
> many pints I've had already).
> 
> Thanks in advance!
> 
> Mike
> 
>