Experimental Ogg vorbis Bitrate Peeler, Bitrate reduction of ogg vorbis |
Experimental Ogg vorbis Bitrate Peeler, Bitrate reduction of ogg vorbis |
 May 20 2005, 20:10
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#1
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Group: Members Posts: 3 Joined: 20-May 05 Member No.: 22175  |
Hi All,
Ours is an embedded software solutions company that focuses on developing embedded software solutions specific to the DSP market. Today we have released free trial version of the VINJEY ogg vorbis decoder available for download. http://www.vinjey.com/ogg_downloads.html On the downloads section we have provided experimental version of the bitrate peeler. This bitrate peeler reduces the bitrate by cutting the packets based on the factor input provided by the user. Source code of this experimental bitrate peeler comes along with our free trial version of the decoder. Regards, Vinoth |
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May 21 2005, 21:31
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#2
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 Group: Members (Donating) Posts: 799 Joined: 12-September 03 Member No.: 8821 |
Guruboolez did you try to compare to transcoded files? I mean, having that 172kbps OggVorbis file as the source, which one sounds better - the same file peeled to 82kbps, or the same file transcoded to 82kbps? AFAIK peeling is supposed to give better quality than transcoding within the same format...
Anyway, it's good to have the very first bitrate peeler (correct me if I'm wrong). Keep improving it vinjey 
This post has been edited by rutra80: May 21 2005, 21:38 |
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May 23 2005, 11:49
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#3
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 Group: Members Posts: 347 Joined: 22-September 04 From: Moscow Member No.: 17192 |
QUOTE (rutra80 @ May 21 2005, 11:31 PM) AFAIK peeling is supposed to give better quality than transcoding within the same format...  If you re-encode the file, psymodel is applied. AFAIK, when you peel, it isn't. That's why peeling is not a useful option, anyway… -------------------- Infrasonic Quartet + Sennheiser HD650 + Microlab Solo 2 mk3.
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May 23 2005, 13:05
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#4
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Group: Members Posts: 6 Joined: 7-January 04 Member No.: 11038 |
QUOTE (Mo0zOoH @ May 23 2005, 02:49 AM) If you re-encode the file, psymodel is applied. AFAIK, when you peel, it isn't. That's why peeling is not a useful option, anyway… Can't a peeler use the same psymodel as the encoder, to somehow peel the bits with the least impact? (I'm a n00b) |
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May 23 2005, 13:10
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#5
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 Group: Members (Donating) Posts: 145 Joined: 26-March 03 Member No.: 5677 |
QUOTE (Robin @ May 23 2005, 07:05 AM) Can't a peeler use the same psymodel as the encoder, to somehow peel the bits with the least impact? (I'm a n00b) This complexity could be avoided if the encoder just arranged data within the packets in such a way that the most important information was at the beginning of each one. Then the peeler could trust the original encoder's psymodel evaluation and truncate the packets, leaving optimal quality at the desired bitrate, with no extra complexity. Measure once, cut twice, one might say? 
This post has been edited by Ariakis: May 23 2005, 13:11 |
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vinjey Experimental Ogg vorbis Bitrate Peeler May 20 2005, 20:10
guruboolez I've tried, and it's amazingly fast!... May 21 2005, 02:12 guruboolez I kept the same track, start to encode it at q10 (... May 21 2005, 02:32
Garf QUOTE (rutra80 @ May 21 2005, 10:31 PM)Anyway... May 21 2005, 21:38
kjoonlee QUOTE (Garf @ May 22 2005, 05:38 AM)QUOTE (ru... May 27 2005, 09:19 Garf QUOTE (kjoonlee @ May 27 2005, 10:19 AM)Minor... May 27 2005, 09:56 Robin QUOTE (Ariakis @ May 23 2005, 04:10 AM)This c... May 23 2005, 13:13 guruboolez QUOTE (rutra80 @ May 21 2005, 09:31 PM)Gurubo... May 24 2005, 08:50 maikmerten well, the bad quality is no surprise. Just choppin... May 21 2005, 22:07 HbG And now for the million dollar Question: Why doesn... May 23 2005, 13:14 Ariakis QUOTE (HbG @ May 23 2005, 07:14 AM)And now fo... May 23 2005, 13:26 Ariakis Nope, not yet. I've never really looked at th... May 23 2005, 13:19 vinjey Hi All,
Thanks for the testing and inputs pro... May 24 2005, 20:55 de Mon QUOTE (vinjey @ May 24 2005, 11:55 AM)Now wit... May 26 2005, 20:38 kjoonlee Heh. Thanks. So.. aard means ground (like in aard... May 27 2005, 10:30 Squeller QUOTE (kjoonlee @ May 27 2005, 01:30 AM)aarda... May 27 2005, 14:41 Garf Exactly. May 27 2005, 10:34 xmixahlx lol does that mean "ground apple" ? Oct 25 2005, 19:59 ChuckSplatt QUOTE (xmixahlx @ Oct 25 2005, 10:59 AM)lol d... Oct 25 2005, 20:11 stephanV I wouldn't translate 'aarde' to 'g... Oct 25 2005, 20:21 |
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