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Multiformat 48 kbps Listening Test Samples
Sebastian Mares
post Nov 6 2006, 18:44
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Please post all samples for the multiformat 48 kbps listening test here. Here are two from me:

Jethro Tull - Locomotive Breath

Vangelis - Alpha

Original posts:

http://www.hydrogenaudio.org/forums/index....st&p=382918
http://www.hydrogenaudio.org/forums/index....st&p=352782

This post has been edited by Sebastian Mares: Nov 9 2006, 17:22


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Gabriel
post Nov 7 2006, 10:36
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From the AAC48 test, I'd suggest:

*aquatisme: "unusual" music, might trip some encoders

*bibilolo: bandwidth test. AAC-LC was clearly muting some parts

*kraftwerk: (very) sharp transcients test

*TomsDiner: voice, "classical" sample

*twist_shout: stereo separation test
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Sebastian Mares
post Nov 9 2006, 07:23
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Nobody else to suggest samples?


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Sebastian Mares
post Nov 9 2006, 07:45
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Here's a Rock sample (Gypsy by Uriah Heep):

http://rarewares.soniccompression.com/samples/Gypsy.wv

This post has been edited by Sebastian Mares: Nov 9 2006, 17:22


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Gabriel
post Nov 9 2006, 09:29
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Debussy for a low volume sample...
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Silversight
post Nov 9 2006, 12:32
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What about MoOzOoH's Autechre Test Sample?

I know it's originally intended for Vorbis Q4-Q5, but its heavy amount of attacks might easily reveal quality differences (f. e. pre-echo) in this low bitrate region, too.


Sample
Original Thread


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Egor
post Nov 9 2006, 13:31
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Nero ABR@48 produces obvious distortions with this sample.

Enya - Amarantine (genre: new age, @Amazon.com). Attached File  Enya___Amarantine_sample.flac ( 997.79K ) Number of downloads: 355
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Sebastian Mares
post Nov 9 2006, 16:41
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I think we should also include some samples of male and female voice - maybe from an audiobook. Do you think multiple languages are needed (German, French, English perhaps)?

This post has been edited by Sebastian Mares: Nov 17 2006, 14:28


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Sebastian Mares
post Nov 9 2006, 17:23
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Another sample: The Wizard by Uriah Heep

Acoustig guitar and male voice during the last seconds.


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Silversight
post Nov 9 2006, 17:30
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The choice of languages seems fine, though I think it's no big difference if we take samples from one language, but with different voices. On the other side, artefacts might be easier to spot if you listen to your native language.


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dyneq
post Nov 9 2006, 17:53
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I'd like to post a sample, but where should I upload it to? It's a 23.5MB flac.

Thanks,

John
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Sebastian Mares
post Nov 9 2006, 18:00
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How big is it? You are supposed to post only 30 seconds samples.


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dyneq
post Nov 9 2006, 18:05
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QUOTE (Sebastian Mares @ Nov 9 2006, 12:00) *
How big is it? You are supposed to post only 30 seconds samples.


Oh, sorry, I didn't realize that. It is the full track in flac format ~23.5 MB! It's 'China Doll' from The Grateful Dead's 'Mars Hotel' album.

So should I select the most 'challenging' 30 secs. of the track? I participated in your last test, but I'm still pretty new at this.

Thanks,

John
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guruboolez
post Nov 9 2006, 18:30
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This one may be interesting. High-pitched violin + orchestral peaks. Very clean recording and strong dynamic (40dB; it's a concerto).

This post has been edited by guruboolez: Nov 9 2006, 18:32
Attached File(s)
Attached File  Paganini_Allegro_spirituoso.flac ( 2.4MB ) Number of downloads: 250
 
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dyneq
post Nov 9 2006, 18:48
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Attached File  China_Doll.flac ( 2.74MB ) Number of downloads: 363
This sample has some electric harpsichord, acoustic guitar and a little percussion.
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dyneq
post Nov 10 2006, 22:51
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One more from 'The Irving Berlin Songbook Volume 2' - Ella Fitzgerald:

Attached File  Blue_Skies.wv ( 2.53MB ) Number of downloads: 370
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Kef
post Nov 10 2006, 23:01
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My contribution: Poets of the Fall - Shallow. 8 seconds intro. A killer sample for most encoders at this bit-rate.

/Kef

This post has been edited by Kef: Nov 10 2006, 23:04
Attached File(s)
Attached File  guitar_potf.flac ( 725.39K ) Number of downloads: 217
 
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Rotareneg
post Nov 11 2006, 02:42
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Blade Runner title music, lots of flanged synthesizer effects.

Brothers in Arms, Why Worry. Very, very quiet track.

Celtic Odyssey, Puirt a Beul, female vocals only.

And finally, The Celts Rise Again track 3, some REALLY LOUD bag pipes, along with other instruments fighting to be heard. biggrin.gif

This post has been edited by Rotareneg: Nov 11 2006, 02:42
Attached File(s)
Attached File  Blade_Runner___01___Main_Titles.wv ( 2.72MB ) Number of downloads: 240
Attached File  Brothers_in_Arms___05___Why_Worry.wv ( 1.65MB ) Number of downloads: 196
Attached File  Celtic_Odyssey___11___Puirt_a_Beul.wv ( 2.68MB ) Number of downloads: 213
Attached File  The_Celts_Rise_Again___03___Donald_Maclean__s_Farewell_to_Oban___Dunrobin_Castle___The_Wise_Maid___Iain__s_Jig.wv ( 3.49MB ) Number of downloads: 224
 
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IgorC
post Nov 11 2006, 21:31
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This sample has very sharp sound at high frequencies.
Attached File(s)
Attached File  bleed.flac ( 2.31MB ) Number of downloads: 191
 
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Alex B
post Nov 12 2006, 12:41
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QUOTE (Gabriel @ Nov 7 2006, 11:36) *
*twist_shout: stereo separation test

I offered this alternative Beatles sample already here: http://www.hydrogenaudio.org/forums/index....st&p=362721. It has an artistically very nice and important stereo separation effect:

Eleanor_Rigby.wv ( 2.81mb )


Also, I reuploaded the "Twist and Shout" sample, so you can compare these two samples.
[attachment=2714:attachment]

This post has been edited by Alex B: Nov 12 2006, 12:51


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Sebastian Mares
post Nov 17 2006, 14:38
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QUOTE (Silversight @ Nov 9 2006, 12:32) *
What about MoOzOoH's Autechre Test Sample?

I know it's originally intended for Vorbis Q4-Q5, but its heavy amount of attacks might easily reveal quality differences (f. e. pre-echo) in this low bitrate region, too.


Sample
Original Thread


Jesus Christ, why didn't you say that the first seconds are silence? I turned up the volume almost to the max wondering what was happening when I was suddenly blasted into the wall. tongue.gif

QUOTE (Alex B @ Nov 12 2006, 12:41) *
QUOTE (Gabriel @ Nov 7 2006, 11:36) *
*twist_shout: stereo separation test

I offered this alternative Beatles sample already here: http://www.hydrogenaudio.org/forums/index....st&p=362721. It has an artistically very nice and important stereo separation effect:

Eleanor_Rigby.wv ( 2.81mb )


Also, I reuploaded the "Twist and Shout" sample, so you can compare these two samples.
[attachment=2714:attachment]


Thanks, but I am afraid that I cannot compare such tracks myself because I have a totally deaf left ear. pinch.gif

---

OK, I downloaded all samples suggested here and listened to them. I think we should also use a Jazz sample (atrain?) which I think is lacking here and was wondering about three things: is Tom's Diner "female voice" enough, or do we need something like a news reporter or book reader? Should we also use a male voice sample? Finally, do you think we also need something from a movie, such as a scene with an explosion or whatever?

This post has been edited by Sebastian Mares: Nov 17 2006, 14:51


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Sebastian Mares
post Nov 17 2006, 14:53
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Samples tested for sure:
  • Alpha
  • aquatisme
  • bibilolo
  • debussy
  • Eleanor_Rigby
  • Gipsy
  • kraftwerk
  • Locomotive_Breath
  • TomsDiner
Samples not tested for sure:
  • Brothers_in_Arms___05___Why_Worry
  • twist_shout


This post has been edited by Sebastian Mares: Nov 17 2006, 14:56


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Sebastian Mares
post Nov 17 2006, 15:06
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Funny that I have to ask, but does anyone still have the samples from my last test? I might eventually end replacing some of the samples in the "for sure" section with some samples used in my 128 kbps test.

This post has been edited by Sebastian Mares: Nov 17 2006, 15:07


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Gabriel
post Nov 17 2006, 15:14
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QUOTE (Sebastian Mares @ Nov 17 2006, 14:38) *
Should we also use a male voice sample?

I think so. I'd suggest the SQAM german male speech sample, because of the sibilants
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Alex B
post Nov 17 2006, 15:39
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QUOTE (Sebastian Mares @ Nov 17 2006, 16:06) *
Funny that I have to ask, but does anyone still have the samples from my last test? I might eventually end replacing some of the samples in the "for sure" section with some samples used in my 128 kbps test.

I seem to have the original 18 zip files in my "128 test folder". PM me if you need them.


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