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Topic: Listening test at ct (Read 9131 times) previous topic - next topic
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Listening test at ct

Reply #25 –
Quote
Originally posted by Frank Klemm


Do you miss any numbers?
All seven are there, but if one is the original wave file, this one should be the top-rated one (which currently is the Musepack file), shouldn't it?

Quote
Originally posted by ssamadhi97

^^
Oops... missed that.

Listening test at ct

Reply #26 –
double post

Listening test at ct

Reply #27 –
My personal c't results.  I screwed up on both of my submitted results to c't (I sent them the randomized order created by ABC/HR).  D'oh!  I get the stupid award.

I have edited the ABC/HR comments below to show which file was which.  Note that I started to ABX the WMA file, but then heard the buzz at the end, and didn't finish up the ABX.  I would have discarded my own results had I submitted this for my 64 kbit/s test.

ABC/HR Version 0.9, 21 August 2002
64 kbit/s Listening test for c't

1R = WAV
2R = RealAudio
3R = AAC
4L = MP3
5R = WMA
6L = MP3Pro
7R = OggVorbis

---------------------------------------
General Comments:
first track is by far the most revealing
1: sample 1 (WAV)
2: sample 5 (WMA)
3: sample 6 (MP3Pro)
4: sample 7 (OggVorbis)
5: sample 2 (RealAudio)
6: sample 3 (AAC)
7: sample 4 (MP3)
---------------------------------------
2R File: RealAudio
2R Rating: 3.7
2R Comment: 1st track (0 - 7.5 sec): flanging, 3.7
2nd track (7.6 - 15 sec): flanging
3rd track (15.1 - 20 sec):
---------------------------------------
3R File: AAC
3R Rating: 3.4
3R Comment: 1st track (0 - 7.5 sec): distortion, 3.4
2nd track (7.6 - 15 sec):
3rd track (15.1 - 20 sec): flanging
---------------------------------------
4L File: MP3
4L Rating: 2.3
4L Comment: 1st track (0 - 7.5 sec): severe lowpass, 2.3
2nd track (7.6 - 15 sec):
3rd track (15.1 - 20 sec):
---------------------------------------
5R File: WMA
5R Rating: 4.7
5R Comment: 1st track (0 - 7.5 sec):
2nd track (7.6 - 15 sec):
3rd track (15.1 - 20 sec): buzz at end gives it away!
---------------------------------------
6L File: MP3Pro
6L Rating: 4.3
6L Comment: 1st track (0 - 7.5 sec): a slight phasey sound, 4.5
2nd track (7.6 - 15 sec):
3rd track (15.1 - 20 sec):
---------------------------------------
7R File: OggVorbis
7R Rating: 3.9
7R Comment: 1st track (0 - 7.5 sec): moderate stereo collapse, 3.9
2nd track (7.6 - 15 sec): wheezing, must be the ogg
3rd track (15.1 - 20 sec):
---------------------------------------
ABX Results:
Original vs WMA
    2 out of 4, pval = 0.688






ABC/HR Version 0.9, 21 August 2002
128 kbit/s Listening test for c't

1L = MP3
2L = WAV
3L = RealAudio
4R = AAC
5L = MP3Pro
6R = WMA
7L = OggVorbis

---------------------------------------
General Comments:
tie between samples 1, 2, 4, 5, 6
next to last = 7
last = 3
---------------------------------------
3L File: RealAudio
3L Rating: 4.0
3L Comment: beginning of second track: flange
---------------------------------------
7L File: OggVorbis
7L Rating: 4.6
7L Comment: 3rd track some extra noise in the center
---------------------------------------
ABX Results:

Listening test at ct

Reply #28 –
What happened to MP3Pro? (It was my 64-kbit favourite in ff123's test)

Here's the c't ranking:
Code: [Select]
Ihre Bewertung für 64 kBit/s-Codecs:

Platz 1: unkomprimiert (WAV)
Platz 2: AAC
Platz 3: MP3Pro
Platz 4: RealAudio
Platz 5: Ogg Vorbis
Platz 6: Windows Media Audio
Platz 7: MP3

Ihre Bewertung für 128 kBit/s-Codecs:

Platz 1: unkomprimiert (WAV)
Platz 2: RealAudio
Platz 3: Ogg Vorbis
Platz 4: Windows Media Audio
Platz 5: AAC
Platz 6: MP3
Platz 7: MP3Pro


... and the complete ABC/HR output (no comments for 64kbit):
Code: [Select]
ABC/HR Version 0.9a, 23 August 2002
Testname: c't 64 kbit Test

1R = AAC
2R = MP3
3R = Windows Media Audio
4L = Ogg Vorbis
5R = MP3Pro
6R = RealAudio
7R = unkomprimiert (WAV)

---------------------------------------
General Comments:

---------------------------------------
1R File: AAC
1R Rating: 4.0
1R Comment: 
---------------------------------------
2R File: MP3
2R Rating: 1.0
2R Comment: 
---------------------------------------
3R File: Windows Media Audio
3R Rating: 2.0
3R Comment: 
---------------------------------------
4L File: Ogg Vorbis
4L Rating: 2.9
4L Comment: 
---------------------------------------
5R File: MP3Pro
5R Rating: 3.5
5R Comment: 
---------------------------------------
6R File: RealAudio
6R Rating: 3.2
6R Comment: 
---------------------------------------
ABX Results:

----------------------------------------------
----------------------------------------------

ABC/HR Version 0.9a, 23 August 2002
Testname: c't 128kbit test

1R = MP3
2R = unkomprimiert (WAV)
3R = MP3Pro
4R = RealAudio
5L = Windows Media Audio
6L = AAC
7L = Ogg Vorbis

---------------------------------------
General Comments:
4 and 6 are at the top
hard to decide between 1, 5 and 6
3 too damped (good ol' mp3?)
2 is probably the original
---------------------------------------
1R File: MP3
1R Rating: 3.0
1R Comment: echo, very bad noise shaping
vibrato in the background (jazz-sample) (->ogg?)
---------------------------------------
3R File: MP3Pro
3R Rating: 2.5
3R Comment: damped, distant sounding
stereo damaged
metallic artifacts
---------------------------------------
4R File: RealAudio
4R Rating: 4.4
4R Comment: noise
echo
---------------------------------------
5L File: Windows Media Audio
5L Rating: 3.4
5L Comment: noise reduced
---------------------------------------
6L File: AAC
6L Rating: 3.2
6L Comment: HF different; little damped
similarities to 5
---------------------------------------
7L File: Ogg Vorbis
7L Rating: 4.0
7L Comment: echo (s in Otello)
metallic cymbals
---------------------------------------
ABX Results:
Original vs G:\audio\ct3267.wav
    7 out of 8, pval = 0.035
Original vs G:\audio\ct3268.wav
    5 out of 5, pval = 0.031
Original vs G:\audio\ct3271.wav
    7 out of 8, pval = 0.035
Original vs G:\audio\ct3273.wav
    5 out of 5, pval = 0.031
Original vs G:\audio\ct3269.wav
    5 out of 5, pval = 0.031
Original vs G:\audio\ct3272.wav
    5 out of 5, pval = 0.031

Listening test at ct

Reply #29 –
test
Juha Laaksonheimo