Quoting Ralf Mardorf <ralf.mardorf@xxxxxxxxxxxxx>:
On Tue, 2013-04-02 at 12:59 +0200, Peder Hedlund wrote:
You should read Monty's (of Ogg/Vorbis and Opus/CELT fame) 24/192 post
: http://people.xiph.org/~xiphmont/demo/neil-young.html
When recording you should obviously go as high as feasible but 16/44.1
is more than adequate for listening.
I didn't read this post, because I already disagree. There already is an
audible difference between 44.1KHz and 48KHz. Unlikely that my
previously golden ears are still golden, since I'm living for > 15 years
in a loud place.
Feel free to post the results of a double blind test to prove you're right.
If there are no technical issues, e.g. a sound card that does perform
better at a sample rate > 48 KHz, then to record with more than 48 KHz
is useless. Why should a sample rate > 48 KHz improve something?
When recording it's (almost) never wrong to go as high as possible,
since your audio will go through a number of different effects,
filters and stuff before eventually be summarized on the master bus,
so you should try minimizing all the potential loss on the way there.
Once you render the file 16/44.1 is all you need - have a look at
Monty's really good videos http://video.xiph.org/vid1.shtml and
http://video.xiph.org/vid2.shtml
And again, no, 44.1 KHz even isn't adequate, you can hear loss of
quality.
Talk is cheap, prove it in a double blind test please.
The most important thing is the way people listen to audio signals. Make
your ABX tests with non-musicians and play two different versions of the
same song, that only include some differences, e.g. the Bass sound is
different or even a loud snare always played at 2 and 4 is a different
sound.
ABX testing isn't about hearing a particular instrument or if the EQ
is different in one track - it's being able to tell if track X is the
same as track A or B.
Do try it yourself on a favourite song; it's as easy as encoding it
with lame, decoding it back to wav with lame, importing the original
and the original->mp3-new_wav into foobar2000 with the ABX plugin and
checking if you can hear which is which.
Here's a guide : http://www.youtube.com/watch?v=jt7GyFW4hOI
And those "certain things" always could be part of the music and usually
are part of the music, people usually are simply not trained to notice
this, they wouldn't notice, if Jimi Hendrix plays a Flying V or a
Stratocaster, the way Hendrix played guitar I suspect every guitarist
will hear the difference between a Flying V and Stratocaster.
I saw a test where a bunch of professional musicians and engineers
listened to a guitar player playing an old $5000 Les Paul and a $500
copy and were asked to tell which was the expensive one. About half of
them failed, including the guitar player in the group.
The same was true for a Stradivarius and a cheap beginners violin,
though IIRC the violin player was correct.
- Peder
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