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samples where aps or ape has a problem
2Bdecided
post Mar 24 2003, 17:01
Post #1


ReplayGain developer


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Posts: 5180
Joined: 5-November 01
From: Yorkshire, UK
Member No.: 409



I'm sure this has been asked before, but I can't find it, and it's not in the FAQ (it should be - please!)

On which samples is --alt-preset extreme audibly better than --alt-preset standard.
On which samples is --alt-preset insane audibly better than --alt-preset extreme.
On which samples is --alt-preset insane not transparent?

Cheers,
David.
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2Bdecided
post Mar 25 2003, 17:25
Post #2


ReplayGain developer


Group: Developer
Posts: 5180
Joined: 5-November 01
From: Yorkshire, UK
Member No.: 409



Thank you all for your responses. I went hunting and listening, and even found another one. To summarise, with --alt-preset standard, I hear the following:


awe22_20sec
http://www.hydrogenaudio.org/forums/index....=ST&f=16&t=2444
ABX 16/16 - the drum beats near the end have added noise

badvilbel
http://www.audio-illumination.org/forums/i...=ST&f=16&t=1059
I (unlike most other people) don't hear a problem - I didn't listen too much because I find the sound painful

birds
http://www.hydrogenaudio.org/forums/index....t=ST&f=16&t=821
ABX 16/16 0 If she's singing "let us beeecome", there's a blip in the left channel on "us"

dogwhistle
http://www.hydrogenaudio.org/forums/index....t=ST&f=16&t=579
I (unlike most other people) don't hear a problem - I didn't listen too much because I find the sound painful ;-)

drone_short
(url to first test?)
ABX 15/16 - sounds noisy during first sound - easy to hear (dropped on ABX due to lack of concentration!)

headache
http://www.hydrogenaudio.org/forums/index....t=ST&f=16&t=423
didn't test

erhu
http://www.hydrogenaudio.org/forums/index....=ST&f=16&t=4687
ABX 14/16 - blip in middle - easy (I almost didn't ABX - not sure what went wrong when I did?!?!)

liebestod
(url to first test?)
ABX 14/16 - difficult (for me) the background is rougher at points, but it's hidden by ambient noise (PC fan mainly) where I'm listening.

sophia2
http://www.hydrogenaudio.org/forums/index....t=ST&f=16&t=543
I (unlike most other people) can't hear a problem - and I did try!

trumpets1
http://www.hydrogenaudio.org/forums/index....=ST&f=16&t=3594
ABX 13/16 - to my ears, the end of the trumpet is less "rough" in the encoded version, but it's very hard to hear

vangelis1
http://www.hydrogenaudio.org/forums/index....=ST&f=16&t=1107
ABX 15/16 - the bass line has a different "character" - it's probably transient smearing, as previously suggested.


Of these, awe32_20sec, birds, erhu and liebestod make me think that, on music I'm likely to encode, there's a very small (but greater than zero) chance of an artefact being encoded. Whether I ever notice it is a different matter!

Cheers,
David.


P.S. Dibrom - does this answer:
http://www.hydrogenaudio.org/forums/index....=ST&f=16&t=3594
still stand? No improvements on the horizon?

P.P.S. in case this thead is read by a newbie as an attack on aps/e/i, please remember that these settings are better than others out there for virtually every audio sample, easy or hard to encode.

P.P.P.S. I think "what samples is aps better than <whatever>" and "what are still problem samples for aps/e/i" should be prominently FAQed! I'm still finding people using FhG VBR! :-(
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Posts in this topic
- 2Bdecided   samples where aps or ape has a problem   Mar 24 2003, 17:01
- - Wombat   There are some, http://www.hydrogenaudio.org/foru...   Mar 24 2003, 18:40
- - Pio2001   QUOTE (2Bdecided @ Mar 24 2003 - 07:01 PM)On ...   Mar 24 2003, 22:11
- - KikeG   For me, the trumpets.wav sample sounds much more t...   Mar 24 2003, 23:12
- - 2Bdecided   Thank you all for your responses. I went hunting a...   Mar 25 2003, 17:25
- - Pio2001   QUOTE (2Bdecided @ Mar 25 2003 - 07:25 PM)bad...   Mar 25 2003, 20:50
- - guruboolez   --alt-preset VBR are suffering with harpsichord. E...   Mar 25 2003, 21:11
- - 2Bdecided   guruboolez - thank you - you're right! W...   Mar 26 2003, 11:58
- - 2Bdecided   QUOTE (Pio2001 @ Mar 25 2003 - 07:50 PM)The p...   Mar 26 2003, 11:59
- - guruboolez   · Jump is a song from Van Halen (1984 album, but n...   Mar 26 2003, 12:03
- - 2Bdecided   Reading about the 3.94 alphas, I followed this sug...   Mar 26 2003, 16:57
- - 2Bdecided   At the risk of being a saddo who just bumps his ow...   Mar 27 2003, 11:10
- - KikeG   QUOTE (guruboolez @ Mar 25 2003 - 09:11 PM)In...   Mar 27 2003, 11:56
- - Dibrom   QUOTE (2Bdecided @ Mar 25 2003 - 09:25 AM)P.S...   Mar 27 2003, 12:02
- - Dibrom   QUOTE (2Bdecided @ Mar 26 2003 - 08:57 AM)aps...   Mar 27 2003, 12:07
- - 2Bdecided   Thank you.   Mar 27 2003, 13:25
- - 2Bdecided   To settle aps -Z vs ape -Z vs api in my own mind, ...   Mar 27 2003, 14:01
- - 2Bdecided   ?   Mar 28 2003, 11:27
- - CiTay   Hmm, --aps -Z files aren't really that much bi...   Mar 28 2003, 12:40
- - 2Bdecided   ? Sorry to bump again, but it's kind of impor...   Mar 31 2003, 11:16
- - DickD   I was searching for info on how -Z worked and foun...   Mar 31 2003, 17:14
- - KikeG   IIRC, JohnV said that there's no problem in us...   Apr 1 2003, 10:05
- - 2Bdecided   JohnV did say exactly that, but Dibrom said ...   Apr 1 2003, 10:24
- - 2Bdecided   ? With the many tests samples I've been try...   Apr 3 2003, 15:52
- - JohnV   It has been said many times that Gpsycho has often...   Apr 3 2003, 17:57
- - Dibrom   QUOTE (2Bdecided @ Apr 1 2003 - 02:24 AM)So m...   Apr 3 2003, 18:17
- - DickD   Just guessing (sorry!) but perhaps -Z could ma...   Apr 3 2003, 20:15
- - 2Bdecided   QUOTE (JohnV @ Apr 3 2003 - 04:57 PM)It has b...   Apr 4 2003, 10:53
- - 2Bdecided   QUOTE (Dibrom @ Apr 3 2003 - 05:17 PM)The poi...   Apr 4 2003, 11:11
- - Gabriel   David, would you try adding --athtype 0 to preset ...   Apr 4 2003, 11:20
- - Wombat   I use aps -Z for a long time now. I donīt encode m...   Apr 4 2003, 11:27
- - JohnV   QUOTE (2Bdecided @ Apr 4 2003 - 01:11 PM)You ...   Apr 4 2003, 12:43
- - CiTay   Okay, i changed the List of recommended LAME setti...   Apr 4 2003, 15:16
- - 2Bdecided   QUOTE (Gabriel @ Apr 4 2003 - 10:20 AM)David,...   Apr 4 2003, 16:25
- - 2Bdecided   JohnV - thanks for that long explanation. It would...   Apr 4 2003, 16:31
- - ff123   2BDecided, Thanks for that list of samples. I...   Apr 4 2003, 16:50
- - user   --alt-preset fast standard / extreme ? dev0: ...   Apr 11 2003, 14:02
- - Frank Klemm   QUOTE (JohnV @ Apr 4 2003 - 01:43 PM)Yes, usi...   Apr 11 2003, 15:41
- - 2Bdecided   QUOTE (user @ Apr 11 2003 - 01:02 PM)--alt-pr...   Apr 11 2003, 16:30


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