Audo test mp4 file

[Andy Bircumshaw]

On 20/3/2011, at 3:59pm, bat guano wrote:
>> ...
>> Searched for a test m4a. There is a m4a test file that works on my cd
>> player here:
>> 
>> http://www.nintendo.com/consumer/systems/dsi/en_na/soundTest.jsp
>> 
>> 
>> Link to zip containing the test file:
>> 
>> http://www.nintendo.com/consumer/downloads/test.zip
>> 
> 
> The nintendo file plays in my second generation iPod shuffle.
> Picture is here:- http://img140.imageshack.us/img140/9927/shufflex.jpg
> I'm amazed because this POS is very picky about what it likes.
> Previously I've only been able to play m4a files created using
> iTunes or neroAacEnc.
> 
> The file created using Nick's method won't work for me.
> ffmpeg -i foo.aac -absf aac_adtstoasc -acodec copy foo.m4a
> 
> Do you think the problem might be to do with the tagging?
> Perhaps some iPods and iTunes won't recognize the way get_iplayer tags the files.
> Particularly if they see 'Writing application : Lavf52.103.0 ' when they're expecting
> something like 'Writing application : iTunes 8.0.2, QuickTime 7.6'.

Thanks to you both for the feedback.

I'm pretty sure I've made .m4a audio on Linux that has then played back in iTunes (or at least Quicktime) on my Mac. But I was probably converting flaac to wav to aac using /usr/bin/flac from <http://flac.sourceforge.net>.

The Nintendo sample appears to have been made with Apple software (I took a glance at it earlier, but can't remember now whether it was Quicktime or iTunes).

But Apple aren't so obnoxious that they *deliberately* won't play audio produced by other applications; it's surely possible for get_iplayer to get this right.

aB.