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Multiformat 48 kbps Listening Test Samples
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
  • Last Edit: 09 November, 2006, 11:22:01 AM by Sebastian Mares

  • Gabriel
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Multiformat 48 kbps Listening Test Samples
Reply #1
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

Multiformat 48 kbps Listening Test Samples
Reply #2
Nobody else to suggest samples?

Multiformat 48 kbps Listening Test Samples
Reply #3
Here's a Rock sample (Gypsy by Uriah Heep):

http://rarewares.soniccompression.com/samples/Gypsy.wv
  • Last Edit: 09 November, 2006, 11:22:42 AM by Sebastian Mares

  • Gabriel
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Multiformat 48 kbps Listening Test Samples
Reply #4
Debussy for a low volume sample...

  • Silversight
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Multiformat 48 kbps Listening Test Samples
Reply #5
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
Nothing is impossible if you don't need to do it yourself.

  • Egor
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Multiformat 48 kbps Listening Test Samples
Reply #6
Nero ABR@48 produces obvious distortions with this sample.

Enya - Amarantine (genre: new age, @Amazon.com). [ Specified attachment is not available ]

Multiformat 48 kbps Listening Test Samples
Reply #7
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)?
  • Last Edit: 17 November, 2006, 08:28:30 AM by Sebastian Mares

Multiformat 48 kbps Listening Test Samples
Reply #8
Another sample: The Wizard by Uriah Heep

Acoustig guitar and male voice during the last seconds.

  • Silversight
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Multiformat 48 kbps Listening Test Samples
Reply #9
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.
Nothing is impossible if you don't need to do it yourself.

  • dyneq
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Multiformat 48 kbps Listening Test Samples
Reply #10
I'd like to post a sample, but where should I upload it to?  It's a 23.5MB flac.

Thanks,

John

Multiformat 48 kbps Listening Test Samples
Reply #11
How big is it? You are supposed to post only 30 seconds samples.

  • dyneq
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Multiformat 48 kbps Listening Test Samples
Reply #12
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

  • guruboolez
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Multiformat 48 kbps Listening Test Samples
Reply #13
This one may be interesting. High-pitched violin + orchestral peaks. Very clean recording and strong dynamic (40dB; it's a concerto).
  • Last Edit: 09 November, 2006, 12:32:37 PM by guruboolez

  • dyneq
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Multiformat 48 kbps Listening Test Samples
Reply #14
[ Specified attachment is not available ]This sample has some electric harpsichord, acoustic guitar and a little percussion.

  • dyneq
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Multiformat 48 kbps Listening Test Samples
Reply #15
One more from 'The Irving Berlin Songbook Volume 2' - Ella Fitzgerald:

[ Specified attachment is not available ]

  • Kef
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Multiformat 48 kbps Listening Test Samples
Reply #16
My contribution: Poets of the Fall - Shallow. 8 seconds intro. A killer sample for most encoders at this bit-rate.

/Kef
  • Last Edit: 10 November, 2006, 05:04:33 PM by Kef

  • Rotareneg
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Multiformat 48 kbps Listening Test Samples
Reply #17
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.
  • Last Edit: 10 November, 2006, 08:42:57 PM by Rotareneg

  • IgorC
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Multiformat 48 kbps Listening Test Samples
Reply #18
This sample has very sharp sound at high frequencies.

  • Alex B
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Multiformat 48 kbps Listening Test Samples
Reply #19
*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 Invalid Or Does Not Exist ]
  • Last Edit: 12 November, 2006, 06:51:05 AM by Alex B

Multiformat 48 kbps Listening Test Samples
Reply #20
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.

*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 Link)


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

---

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?
  • Last Edit: 17 November, 2006, 08:51:01 AM by Sebastian Mares

Multiformat 48 kbps Listening Test Samples
Reply #21
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
  • Last Edit: 17 November, 2006, 08:56:44 AM by Sebastian Mares

Multiformat 48 kbps Listening Test Samples
Reply #22
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.
  • Last Edit: 17 November, 2006, 09:07:14 AM by Sebastian Mares

  • Gabriel
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Multiformat 48 kbps Listening Test Samples
Reply #23
Should we also use a male voice sample?

I think so. I'd suggest the SQAM german male speech sample, because of the sibilants

  • Alex B
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Multiformat 48 kbps Listening Test Samples
Reply #24
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.