Re: [LAU] ABX test invite

From: Ralf Mardorf <ralf.mardorf@email-addr-hidden-dsl.net>
Date: Wed Apr 03 2013 - 15:41:54 EEST

On Wed, 2013-04-03 at 13:54 +0200, Raffaele Morelli wrote:
> 2013/4/3 Peder Hedlund <peder@email-addr-hidden>:
> > In view of the recent debate regarding the alledged "crappiness" of MP3 I
> > thought it would be fun to see if the LAU society can tell lame (v3.99.4)
> > MP3s from the original.
> >
> > Everyone is invited to download the testfiles from
> > http://www.musikhuset.org/~peder/AxelF.zip , see if you can ABX them and
> > post the result.
> > There's one original WAV file and then 3 MP3s of various bitrates, which
> > have all been converted back to WAV.
> >
> > The 165 MP3 was created using "-V4", the 124 "-V6" and the 108 "-V8
> > --resample 44.1" (since it wanted to make a 24 kHz file otherwise).
> >
> > - Peder
>
> Hi,
>
> trials 10
>
> against 165: correct 5, p-value 0.623
> against 124: correct 7, p-value 0.172
> against 108: correct 9, p-value 0.011
>
> side effects: back to the '80 and doing the moonwalk B-)

Playing one file after the other using VLC -> Jack @ 48KHz -> HDSPe AIO
phones out -> AKG K 240 DF I didn't notice a difference for the audio
quality. _But_ the mix of the original wav for sure is nice for that
kind of music, but it isn't a high quality audio recording useful for
this test.

_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@email-addr-hidden
http://lists.linuxaudio.org/listinfo/linux-audio-user
Received on Wed Apr 3 16:15:06 2013

This archive was generated by hypermail 2.1.8 : Wed Apr 03 2013 - 16:15:06 EEST