I am using OggEnc v0.8 (libvorbis rc2) (win32 cli)
I have access to two machines
Pentium 3 450mhz, 192mb, Windows 2000 (SP2)
Athlon 1400mhz, 256mb, Windows 2000 (SP2)
When I encode the same wave file on each machine at the same nominal
bitrate (96kbps), I get output files with different average bitrates.
107kbps on the Athlon, as opposed to 84kbps on the Pentium 3.
Anyone experienced this ? Is this to be expected?
Just a little curious
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Jack Moffitt
2001-Dec-09 22:10 UTC
[vorbis] Different average bitrates on different machines
> I have access to two machines > Pentium 3 450mhz, 192mb, Windows 2000 (SP2) > Athlon 1400mhz, 256mb, Windows 2000 (SP2) > > When I encode the same wave file on each machine at the same nominal > bitrate (96kbps), I get output files with different average bitrates. > 107kbps on the Athlon, as opposed to 84kbps on the Pentium 3.That does seem a little strange. Normally you could attribute some difference to the compiler the OS etc. But on the same OS with the same (I'm assuming) binary, it seems odd that you'd get different results. Monty? jack. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
MARK JAMES HETHERINGTON
2001-Dec-09 22:32 UTC
[vorbis] Different average bitrates on different machines
That's a BIG difference too. There must be something screwy somewhere. ----- Original Message ----- From: Jack Moffitt <jack@xiph.org> Date: Monday, December 10, 2001 5:10 pm Subject: Re: [vorbis] Different average bitrates on different machines> > I have access to two machines > > Pentium 3 450mhz, 192mb, Windows 2000 (SP2) > > Athlon 1400mhz, 256mb, Windows 2000 (SP2) > > > > When I encode the same wave file on each machine at the same nominal > > bitrate (96kbps), I get output files with different average > bitrates.> 107kbps on the Athlon, as opposed to 84kbps on the > Pentium 3. > > That does seem a little strange. Normally you could attribute some > difference to the compiler the OS etc. But on the same OS with the > same(I'm assuming) binary, it seems odd that you'd get different > results. > Monty? > > jack. > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage: http://www.xiph.org/ogg/ > To unsubscribe from this list, send a message to 'vorbis- > request@xiph.org'containing only the word 'unsubscribe' in the > body. No subject is needed. > Unsubscribe messages sent to the list will be ignored/filtered. ><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Same binary : oggenc.exe ( OggEnc v0.8 (libvorbis rc2) ) Same command line : oggenc -b 96 input.wav Same wav file (ie. only ripped once, then copied to other system) Initially, I thought that I may have had different binaries, so I downloaded the latest version from the site, and used that on both systems. I notice no artifacts/anomalies in the encoded audio. <p><p><p>>From: Jack Moffitt <jack@xiph.org>>Reply-To: vorbis@xiph.org >To: vorbis@xiph.org >Subject: Re: [vorbis] Different average bitrates on different machines >Date: Sun, 9 Dec 2001 23:36:10 -0700 > >Assumptions aside, are you absolutely sure you picked the _same mode_ >and used the _same binary_ on both systems? > >jack. > >--- >8 ---- >List archives: http://www.xiph.org/archives/ >Ogg project homepage: http://www.xiph.org/ogg/ >To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' >containing only the word 'unsubscribe' in the body. No subject is needed. >Unsubscribe messages sent to the list will be ignored/filtered.<p>_________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Giuliano Pochini
2001-Dec-10 01:14 UTC
[vorbis] Different average bitrates on different machines
> I am using OggEnc v0.8 (libvorbis rc2) (win32 cli) > > I have access to two machines > Pentium 3 450mhz, 192mb, Windows 2000 (SP2) > Athlon 1400mhz, 256mb, Windows 2000 (SP2) > > When I encode the same wave file on each machine at the same nominal > bitrate (96kbps), I get output files with different average bitrates. > 107kbps on the Athlon, as opposed to 84kbps on the Pentium 3.Put a (small) peice of that file that shows the problem somewhere so we can try ourselves.> Anyone experienced this ? Is this to be expected? > > Just a little curiousI have a ppc750 and I'm curious too. <p>Bye. Giuliano Pochini ->)|(<- Shiny Network {AS6665} ->)|(<- <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
What libs ? As far as I can tell, the win32 cli binary is statically linked to the vorbis routines and the only external libaries that are dynamically linked are kernel32.dll and msvcrt.dll. I will redo my tests to check to see that I have not screwed up in any way. <p><p><p>>From: xiphmont@xiph.org (Monty)>Reply-To: vorbis@xiph.org >To: vorbis@xiph.org >Subject: Re: [vorbis] Different average bitrates on different machines >Date: Mon, 10 Dec 2001 03:29:08 -0500 > > > > >On Mon, Dec 10, 2001 at 08:13:12AM +0000, Bruce D wrote: > > Same binary : oggenc.exe ( OggEnc v0.8 (libvorbis rc2) ) > > Same command line : oggenc -b 96 input.wav > > Same wav file (ie. only ripped once, then copied to other system) > > > > Initially, I thought that I may have had different binaries, so I >downloaded > > the latest version from the site, and used that on both systems. > > > > I notice no artifacts/anomalies in the encoded audio. > >Same binary, yes, but same libs? That difference is large enough to >be only one of two things. >(1) a Bug >(2) An inadvertant testing error on your part. > >With more than a million installs, this is the first report we've had >of sucha large difference, so please be very exacting in making sure >the problem isn't (2). That's not to say a bug isn't possible, just >that it's less likely than pilot error. > >Monty > >--- >8 ---- >List archives: http://www.xiph.org/archives/ >Ogg project homepage: http://www.xiph.org/ogg/ >To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' >containing only the word 'unsubscribe' in the body. No subject is needed. >Unsubscribe messages sent to the list will be ignored/filtered.<p>_________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Autoresponder
2001-Dec-10 12:24 UTC
[vorbis] Different average bitrates on different machines
Due to unexpected down time of the Funny Garbage email server, your mail has not been delivered. Please call your contact at Funny Garbage at 212.343.2534 Mail Admin, Funny Garbage --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Patrick Masters
2001-Dec-10 13:36 UTC
[vorbis] Different average bitrates on different machines
One thing I have noticed between two different programs is the file sizes. I used DBpoweramp for encoding some of ogg files with RC2. Excellent quality and perfect file sizes for most songs. Then I tried the Audio Conversion Wizard program. I liked the sound and the GUI a little better than DBpoweramp. But I noticed on all of the tracks I encoded that the file sizes were justa little bigger. DBpoweramp file was 2.0MB exactly and ACW was 2.09. Its not all that big of a deal but it definitley could be the difference in fitting another 20-30 songs on cd or dvd-r. Any idea why this may be different between the two programs? Patrick Masters <p>From: Jack Moffitt <jack@xiph.org> Reply-To: vorbis@xiph.org To: vorbis@xiph.org Subject: Re: [vorbis] Different average bitrates on different machines Date: Mon, 10 Dec 2001 12:23:40 -0700 > Really must move my encoding to 2000 Pro! Why is hte result 2x faster on win2k? That doesn't make much sense to me. A few percent is probably to be expected, but a 100% increase!?!? jack. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered. <p>_________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Ok, problem solved. When I checked the binary versions, I was in the directory oggenc was installed into. However, it turns out that I had another older version somewhere in my search path, and was picking that one up when encoding. Apologies for the false alarm. Anybody care to hand me the dunce cap? Or is there something else more appropriate ? <p><p><p><p>>From: Jack Moffitt <jack@xiph.org>>Reply-To: vorbis@xiph.org >To: vorbis@xiph.org >Subject: Re: [vorbis] Different average bitrates on different machines >Date: Sun, 9 Dec 2001 23:36:10 -0700 > >Assumptions aside, are you absolutely sure you picked the _same mode_ >and used the _same binary_ on both systems? > >jack. > >--- >8 ---- >List archives: http://www.xiph.org/archives/ >Ogg project homepage: http://www.xiph.org/ogg/ >To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' >containing only the word 'unsubscribe' in the body. No subject is needed. >Unsubscribe messages sent to the list will be ignored/filtered.<p>_________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.