similar to: Ogg Vorbis versus Mp3

Hello, Why Ogg compression and quality are better than Mp3 ? I'm studing Ogg Vorbis and Mp3 codecs for my thesis. Can you help me ? Tank you very much. Cristian Gagliardi. <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

Hello, Why Ogg compression and quality are better than Mp3 ? I'm studing Ogg Vorbis and Mp3 codecs for my thesis. Can you help me ? Tank you very much. Cristian Gagliardi. <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

Lately, when I try to open R I get the following error message: Error: object 'time' not found whilst loading namespace 'tseries' Fatal error: unable to restore saved data in .RData If I rename .RData to RData.RData and then try opening R again it works. Then I can load("RData.RData") without a problem. But if I try saving my workspace (as the default,

I've made a block diagram of the encoder because I tried to find out, how it works http://stoffke.freeshell.65535.net/ogg/block.html Although there are specifiation docs, that give very detailed information about single aspects of the encoding (or decoding) , I'm missing documenations that give a more general overview, about how the encoder works. (Vorbis Illuminated seems a bit

I've made block diagram of the encoder because I tried to find out, how it works http://stoffke.freeshell.65535.net/ogg/block.html Although there are specifiation docs, that give very detailed information about single aspects of the encoding (or decoding) , I'm missing documenations that give a more general overview, about how the encoder works. (Vorbis Illuminated seems a bit outdated,

I did composition of butterfly8 and butterfly16 and I found, that these functions are well decomposed - decomposition doesn't lower computional speed. On the other hand the same can be done with butterfly8 - decomposition to butterfly4 (further decomposition is not possible) but there's no reason to do this. I think little improvement can be done by inlining them. Compiler and processor

Well, here you are. 24k; sorry if I'm not supposed to put this size things in your mailbox, didn't know where else to put it. And you all are subscribed to vorbis-dev, after all. I'm not that good at breaking patches apart, so it's one big patch. Sorry. Overview: configure.in make profiling easier & more useful decoder-example.c (#if 0'ed) dither output;

Thanks. And sorry for abusing the word crash. I understand the difference. However, now that you mention it, there is a case where I think R is crashing. I'm not sure if it's R or if it's the Mac OS interface, but if I try to plot something complicated (or a series of complicated things) while rendering them at the same time, R will freeze and eventually fail. I've been trying

A question.... How much the streaming will be better using Squid as HTTP accelerator for the streaming? The users will connect against Squid instead directly to Icecast. Squid will connect to Icecast. This must permit more users at the same time by using the cache of Squid. Anyone has installed this? I´m studing this but if someone has another idea or a reason to not do this, please say to me....

Hi Any help is appreciate! These days I studied ogg vorbis encoder with sample rate 44.1kbsp,and I thought the whole chart was as follows: 1. read the PCM data and store them in a buffer 2. do MDCT on those PCM data 3. do FFT on those PCM data 4. use both the FFT and MDCT coefficient to the psychoacustic modle and derive an maximum allowable noise curve, and during this curse ,do the

Hi demo pages http://web.mit.edu/xiphmont/Public/theora/demo.html http://web.mit.edu/xiphmont/Public/theora/demo2.html discussed opportunity to add range coding there is already some xiph code: http://svn.xiph.org/trunk/ghost/libentcode/ and Timothy B. Terriberry wrote some time ago === I'd estimate that you'd save ~12% by switching from Huffman to something arithmetic coding-based

Dear useRs, I'm running some pretty big R scripts using a PBS that calls upon the RMySQL library and it's filling up the /tmp/ directory with Rtmp* files. I thought the problem might have come from scripts crashing and therefore not getting around to executing the dbDisconnect() function, but I just ran a script that exited correctly and it still left a giant file in /tmp/ without

---------- Forwarded message ---------- From: digital design <developer.fpga at gmail.com> Date: 21 March 2011 13:38 Subject: Re: [theora] alghorithm of working encoder in libtheora To: bens at alum.mit.edu Cc: Reply-All at xiph.org On 18 March 2011 23:15, Benjamin M. Schwartz <bmschwar at fas.harvard.edu>wrote: > On 03/18/2011 01:44 PM, digital design wrote: > > Now i

There is bit space in Bitstream Header to put Huffman codes in. However, This space can take only 80 kinds of Huffman code set. And This space is divded into DC Huffman code set and AC Huffman set, and There are only 16 choices in each DC and AC Huffman code set. If we want to use this space, we find out best(or proper) performance 80 frequency counts(Huffman code sets) from tens thousands of

Hello folks, The codebook infrastructure for Vorbis is now well underway. This is it! The last piece needed for *real* bitstreams. To that end, I have a decent VQ codebook generator running. I was originally using some farily typical merge/split algorithms and then decided that the right way to do this was to model a VQ codebook as an m-dimensional set of bubbles (like a foam). I know there

Hi, I've restarted my Elsa/LLVM project after three months of having real life intrude. I upgraded my LLVM source to the current trunk. I had to make a few changes to my source, e.g. LLVMFoldingBuilder became IRBuilder and several instances of "new" became "Create". Now, a test case that previously succeeded fails. I run the following script: #!/bin/sh if [ 1 -ne 0 ]

Hi, all I am studying the ogg-vorbis algorithm but I have less knowledge about the codebook structure of vorbis. After tracing the release source code, I found it doesn't use huffman tree to decode the huffman code instead of using a special mapping and pre-look. The memory requirement seems similar with huffman tree decoding. Could anyone tell me how the vorbis huffman decoding works

OK, into the nitty-gritty, albeit a high-level version. If it sounds like I'm glossing important details, you're right. This discusses only the basic DSP; precise coding, framing, sync, etc, will be in another mail. Vorbis is a hybrid transform domain general purpose audio encoder, like MPEG in some respects (it is rooted in much of the same basic theory). For the most part, the

Good day! I'm creating HDL IP CORE (for using in FPGA) for theora encoder (now only I-frames). I don't undestand one moment. Now i develop such stages: 1. From RBG(byer) to YCbCr converter 2. DCT processing (8x8 pixels blocks) 3. Quantizator of DCT coeff. 4. Zig-Zag of quantized DCT coeff. and now i have uresolved last stage of compression - how i must send 8x8 blocks to huffman

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-05:14.bzip2 Security Advisory The FreeBSD Project Topic: bzip2 denial of service and permission race vulnerabilities Category: contrib Module: