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WavPack 4.0 Beta Release 2, including sources
bryant
post May 7 2004, 06:01
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The second beta release of WavPack 4.0 includes the following:
  • stable format (beta1 files okay too; beta1 decoder obsolete)
  • decodes and plays legacy WavPack files (vers 1.0 to 3.97)
  • sources available with new decoding library
download win32 executables plus winamp2/5 & foobar2000 plugins
download sources

This post has been edited by bryant: May 14 2004, 08:06
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den
post May 12 2004, 11:52
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Ok, you asked for it...

kraftwerk1:
264 Kb WV hb256 - ABX 10/10
259 Kb OFSX b256 - ABX 10/10
In 2.4 - 3.4 seconds there are three tones (which I used to ABX Wavpack) and a "bwarp" type tone before. With the OFSX file, the edges of the "bwarp" sound are slightly different.

waiting:
270 Kb WV hb256 - ABX 8/10
256 Kb OFSX b256 - ABX 10/10
In 11.1 - 16.2 some of the edges to the noise are not quite the same. The slight difference I could hear around the vocals in hb256 Wavpack are not present here. They disappear with hb256x6 also if you read above.

Another one bites the dust:
259 Kb WV hb256 - ABX 10/10
265 Kb OFSX b256 - ABX 10/10
Slight changes in the noise in the percussion. "Dustiness" is not so noticeable here.

porcelain:
267 Kb WV hb256 - ABX 10/10
256 Kb OFSX b256 - ABX 10/10
Again, the noise in the samples that come in is not quite the same, but damn close.

rushing:
261 Kb WV hb256 - ABX 10/10
260 Kb OFSX b256 - ABX ?/10
Haven't played with this one too closely yet, but a quick listen sounds transparent.

OK, the above might read like a negative set of results, but it shouldn't be read this way. I had to really pore over each sample to find differences to ABX, and it took more time to find something compared to the Wavpack equivalent hb256 samples. I haven't conducted a close comparison between OFSX and Wavpack 4, but the OFSX samples were generally "closer to transparency". I achieved the 10/10 ABX results more because I knew what to listen for after playing with Wavpack 4. If hb256x6 is used with Wavpack 4 instead, there is still some difference between the two, but the gap is often closer.

The "artifacts" I'm hearing are barely there, and are best described as minor changes in noise in the background in most cases. If you were to listen to the above OFSX versions by themselves, you would probably miss it. It only becomes vaguely noticeable in a focussed ABX situation with short samples.

If I had to pick one of these encoders at this bitrate based on these samples, purely for quality it would be OFSX, but we don't know how long these samples took to encode. If Wavpack is given plenty of time to encode (ie hb256x6) it gets quite close.

I wouldn't trash your encoder Florin. cool.gif

I also think that both you and David need to be congratulated with these latest efforts. At 256ish kbit, these encoders are now seriously in the same league as the other popular lossy encoders. wink.gif

Hope this helps.

Den.


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Den
My blog - http://www.iinet.net.au/~den
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Posts in this topic
- bryant   WavPack 4.0 Beta Release 2   May 7 2004, 06:01
- - xmixahlx   excellent! so porting to, say, libwavpack lib...   May 7 2004, 07:05
- - aabxx   I tried the new asymmetrical encoding... very slow...   May 7 2004, 07:19
- - NRAninja   Hello bryant, I like Wavpack 4 very much. I notic...   May 7 2004, 07:23
- - Tec9SD   QUOTE (NRAninja @ May 7 2004, 01:23 AM)I was ...   May 7 2004, 07:37
- - robUx4   We're planning to have WavPack handling native...   May 7 2004, 08:07
- - NumLOCK   QUOTE (aabxx @ May 7 2004, 07:19 AM)A typical...   May 7 2004, 09:29
- - tcmjr   Hey Bryant , nice to see you again Had an Hdd cra...   May 7 2004, 14:24
- - mrbruno   hi ! wavpack seems to be a very interesting ...   May 7 2004, 17:12
- - Tomb   You can tag with ID3v1, ID3v2 or APE2. I tag with ...   May 7 2004, 17:19
- - mrbruno   well, I'd like to tag wavpack files with ID3 t...   May 7 2004, 17:27
- - rjamorim   QUOTE (Tec9SD @ May 7 2004, 03:37 AM)QUOTE (N...   May 7 2004, 18:12
- - robUx4   I'm currently porting the sources to Linux (ke...   May 7 2004, 18:19
- - emtee   What about seeking? I remember version 3.97 had so...   May 7 2004, 18:21
- - Speek   QUOTE What about seeking? I remember version 3.97 ...   May 7 2004, 19:07
- - tcmjr   QUOTE (emtee @ May 7 2004, 09:21 AM)What abou...   May 7 2004, 19:17
- - Tec9SD   QUOTE (mrbruno @ May 7 2004, 11:27 AM)well, I...   May 7 2004, 19:27
- - robUx4   The modified sources that work both under Win32 an...   May 7 2004, 21:35
- - rjamorim   Wonderful. Thank-you very much @xmixahlx: Where ...   May 7 2004, 22:25
- - naturfreak   Bug in Wavpack4 beta2 (win32 executable)? Hello, ...   May 7 2004, 22:44
- - tcmjr   no problem using windows xp sp1 all patches   May 7 2004, 23:28
- - kuniklo   QUOTE (robUx4 @ May 7 2004, 08:35 PM)The modi...   May 7 2004, 23:38
- - den   Now that Wavpack 4 is relatively stable, and the f...   May 8 2004, 00:21
- - xmixahlx   QUOTE (rjamorim @ May 7 2004, 01:25 PM)@xmixa...   May 8 2004, 07:16
- - Pamel   QUOTE (tcmjr @ May 7 2004, 01:17 PM)First of ...   May 8 2004, 07:29
- - robUx4   QUOTE (xmixahlx @ May 8 2004, 07:16 AM)a few ...   May 8 2004, 09:12
- - FireStarter   Maybe i am blind and it have already been posted, ...   May 8 2004, 12:39
- - tcmjr   No foobar plugin for wavpack 4 yet.   May 8 2004, 13:18
- - robUx4   I fixed all the known bugs in Linux. You can find ...   May 8 2004, 15:00
- - xmixahlx   optimfrog is closed source, florin just hasn't...   May 8 2004, 15:01
- - robUx4   What's the license of Monkey's Audio ? I w...   May 8 2004, 15:05
- - Peter   I see WavPack author has yet to discover the idea ...   May 8 2004, 15:38
- - robUx4   With David's permission I'll work on a lib...   May 8 2004, 15:57
- - glauco   TEST MACHINE Intel Pentium 4 2,4 GHz. 512 MB DDR ...   May 8 2004, 20:05
- - den   OK, as promised some Wavpack lossy listening test ...   May 10 2004, 03:20
- - The_Cisco_Kid   Played with it briefly, saw it was no joy in FB2k ...   May 10 2004, 03:50
- - bryant   First of all, thanks to everyone who has tried out...   May 10 2004, 05:44
- - Cerebus   I, too, would like a way to perform the replaygain...   May 10 2004, 21:12
- - NRAninja   The single file image and separate tracks issue is...   May 10 2004, 21:20
- - ghido   Hello, Here it is a little summary of WavPack 4.0...   May 11 2004, 00:41
- - den   QUOTE Hello, Here it is a little summary of WavPa...   May 11 2004, 02:14
- - Pamel   QUOTE (NRAninja @ May 10 2004, 03:20 PM)The s...   May 11 2004, 04:05
- - den   Ok, you asked for it... kraftwerk1: 264 Kb WV hb2...   May 12 2004, 11:52
- - den   Just to make sure that all is clear: QUOTE waitin...   May 12 2004, 13:59
- - bryant   My first attempt at an updated Foobar2000 plugin h...   May 14 2004, 08:00
- - den   Thanks David. If there was anything holding Wavpac...   May 14 2004, 08:47
- - john33   New 4.0b2 foobar2k plugin binary now at Rarewares.   May 14 2004, 09:05
- - FireStarter   Other then using foobar for transcode wavepack, is...   May 14 2004, 10:12
- - Speek   Thanks for the foobar component. It works fine (so...   May 14 2004, 11:25
- - robUx4   Maybe that should be an option, with a third possi...   May 14 2004, 13:13
- - robUx4   The latest sources are now uploaded on the CVS of ...   May 14 2004, 14:09
- - glauco   WOW!!! Linux version, foobar plugin, ...   May 14 2004, 15:27
- - bryant   QUOTE (naturfreak @ May 7 2004, 01:44 PM)Afte...   May 15 2004, 20:12
- - Pamel   QUOTE (bryant @ May 15 2004, 02:12 PM)Yes, on...   May 17 2004, 22:49
- - HansHeijden   For those interested, just updated the compression...   May 19 2004, 19:33
- - SometimesWarrior   QUOTE (HansHeijden @ May 19 2004, 11:33 AM)Fo...   May 20 2004, 07:47
- - den   @FireStarter Sorry I didn't answer you before...   May 20 2004, 10:07
- - robUx4   For those interrested, I've tuned the Wavpack ...   Jun 1 2004, 21:38
- - rjamorim   Elite! Thanks   Jun 1 2004, 21:54
- - MyAdviceIha   It has been a while since any updates have been to...   Jun 18 2004, 16:26
- - robUx4   I guess it's quite stable. Unfortunately CoreC...   Jun 18 2004, 16:54
- - bryant   QUOTE (MyAdviceIha @ Jun 18 2004, 07:26 AM)It...   Jun 19 2004, 18:26
- - Tec9SD   Nice to hear, thank you all for your time and effo...   Jun 20 2004, 09:08
- - bryant   QUOTE (Tec9SD @ Jun 20 2004, 12:08 AM)Has MD5...   Jun 21 2004, 05:28
- - dzy   is the md5 going to be the md5 of decoded raw data...   Jun 21 2004, 07:59
- - bryant   QUOTE (dzy @ Jun 20 2004, 10:59 PM)is the md5...   Jun 21 2004, 18:40
- - guruboolez   Does it mean that files need to be decoded in orde...   Jun 21 2004, 18:45
- - bryant   QUOTE (guruboolez @ Jun 21 2004, 09:45 AM)Doe...   Jun 21 2004, 19:13
- - guruboolez   QUOTE (bryant @ Jun 21 2004, 07:13 PM)Aren...   Jun 21 2004, 19:34
- - bryant   QUOTE (guruboolez @ Jun 21 2004, 10:34 AM)Cha...   Jun 21 2004, 19:49
- - robUx4   IMO it's good to compute it on the encoded dat...   Jun 21 2004, 21:49


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