[BNM] Sound File Geeks...
Ian Ozsvald
ian at ianozsvald.com
Thu Jul 2 18:51:04 BST 2009
Try also GSpot (Windows only)
http://www.headbands.com/gspot/
which gives you the lowdown on video+audio codecs. I'm not sure if it
only does audio files (can't see why not though), it pulls out the
codecs for movies just fine and high-lights whatever it thinks is
missing.
QuickTime Pro (paid-for) also has a nice Media tab that explains
what's going on, though that's presumably just the same info that
VLC/mplayer/Audacity will expose.
i.
2009/7/2 Antony Jones <antonyj at gamesys.co.uk>:
> 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
>>
>>
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