[LAU] How bad is mp3/ogg

[Lorenzo Sutton]

On 11/10/2011 23:35, S. Massy wrote:
> On Tue, Oct 11, 2011 at 09:07:33PM +0000, Fons Adriaensen wrote:
>> On Tue, Oct 11, 2011 at 10:57:38PM +0200, Atte Andr? Jensen wrote:
>>
>>> My question is: is this really a fair way to judge the artifacts
>>> introduced by encoding?
>>
>> No, it's completely invalid.
>>
>> The correct way would be a double blind A/B/X test between the
>> original and the encoded versions.
> With suitable hardware. What I mean is, I think a great way of
> demonstrating the difference between lossy compression and uncompressed
> audio is to do an A/B test through a consumer device and then do it in the
> studio. The difference can be striking.

But tests should be blind, as Fons suggested.

> I like to think I have decent ears, and I can only very rarely tell the
> difference once over 192kbps. Though I've also found that bitrate isn't
> always everything (i.e some audio seems to respond better to a given
> compression algorithm than other). I wonder what other people's
> experience has been in that respect.

It has always struck me how well you can tell compressed files by 
listening to applause (especially the kind of applause you get at a talk 
or classical music concert).
My personal experience is that classical and electroacoustic music are 
much more susceptible to compression artefacts than 'mainstream' music.

Lorenzo.

>
> Cheers,
> S.M.
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