12 Oct
2011
12 Oct
'11
11:57 p.m.
On Wed, Oct 12, 2011 at 12:19:55PM +0200, Philipp ??berbacher wrote:
Excerpts from S. Massy's message of 2011-10-12
00:23:42 +0200:
No, I'm afraid it was nothing of the kind and extremely unscientific. I
certainly cannot discount the possibility that my brain bypassed my ears
and fooled itself. What is interesting, however, is that I actually did
*not* expect to see a difference between uncompressed audio and high
bitrate ogg/mp3, based on experiments I had conducted several years ago,
but did. I would really be interested in taking part in some kind of
double blind testing some time and see what the outcome is.
Cheers,
S.M.
On Tue, Oct 11, 2011 at 05:35:09PM -0400, S.
Massy wrote:
Was this a double-blind test? Otherwise you don't really need to test at
all. The idea of a double-blind test is that you can't fool yourself.
With a simple A/B test you might not want to fool yourself but still do
it. On Tue, Oct 11, 2011 at 09:07:33PM +0000, Fons
Adriaensen wrote:
Responding to myself here. Out of curiosity,
I just did some AB'ing
(hadn't in a very long time) and you can hear a difference even above
192 kbps. A lot of it seems to have to do with emphasised frequencies. I
think Jostein had a very good point about these formats potentially
actually being pleasing to people because they make things sound
"bigger/punchier".
Very interesting...
Cheers,
S.M. 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.
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.