similar to: Models used in mp3 and Ogg Vorbis?

After reading http://mp3.radified.com/mp3.htm I sent Rad an explanation of some things as I understand them. He liked it and posted it on his site (still unlinked, use the URL below). Can somebody with better understanding of psycho-acoustic terms and the vorbis model check it and comment on it? In particular I didn't know how vorbis handles quantization noise. If you reply with

Hello. I'm new to the list, and I've dutifully, like the good newbie (in this list anyway) that I am, have searched through the archives, but I can find no answer to my question. SO...is there, or can there be, a viable MP3 to OGG translator, so that those of us with gigabytes of MP3's (legalities aside) can translate them to OGGs? I don't mind ripping any NEW Cd's that

Hi I have gone through the document available in the net regarding the Vorbis encoder /Decoder. Based on that i have prepared a understanding document on the encoder/decoder block. I would like to know whether my understanding of the coder is OK. If there are any other additional block /information pl. provide me with the same. Thanks and regards S.Padmashri <HR NOSHADE> <UL>

Hi! Why is Ogg Vorbis better than mp3? Which basic technologies has Ogg Vorbis, that f.ex. lame doesn't have? Ogg Vorbis has a different psycho model than mp3, but what is the names of these models and what is the differences? Which advantages have Ogg Vorbis, that cant be implemented in mp3/lame due to compability reasons? <p>Thanks in advance! <p><p>--- >8 ---- List

I write a work over Vorbis. ? ?Now I have a few questions to the function. ? ?For what is the MDCT used? ? ?For what is the FFT used? ? ?How is the expiration with the encodieren? ?In the reference to the MDCT,FFT and the hearing model . ? ?Is there a volume fragmentation in Subband as MP3? ? ?If it is possible, the answers in the detail ?Thanks ? -------------- next

I've just done some rudimentary testing to see how Vorbis degrades at absurdly low bitrates without downsampling. In summary, don't hope for anything decent below -q 0 for now. I tried oggenc -b <bitrate> -M <bitrate> for the below and a few in between: 24k - spectral energy "floor" captured decently, but many pure-tone blips (think old computer movie sound effects)

Hello vorbis developer! I'm not very experienced in informatics, cause i'm only an audio engineer and sorry for my broken english but i have an idea... After the filterbank the maximum aplitude in each band decides about the nessesary bits, then the psychoacoustic model decides how much of the signal can be truncated without hearable noise. What do you think about quantising the

Thread-split from the vorbis-mailing list ("Vorbis determined to be as good as MPC at 128 kbps!") <p>On Sun, 30 May 2004, Segher Boessenkool wrote: [Steven So] SS>> If iTunes AAC can encode castanets with much less pre-echo at SS>> ABR 128 kbps, then hopefully there will be an imaginative SS>> (and non-patented) way of doing this in Vorbis without the SS>>

Smack my curiosity, but I encoded some songs in Vorbis mode 2 and tried to be able to distinguish the difference between that and the uncompressed WAVs. (*smacks self*) but here's what I noted: It's actually kind of hard to tell the difference :) (and I consider myself to have a decent set of ears, though not anywhere near the best) I got my accuracy to about 90%, but I couldn't

I'm copying the flac-dev list to see if anyone has any feedback also... --- Juhana Sadeharju <kouhia@nic.funet.fi> wrote: > Hello again. I had time to check the paper out. I have filled the > steps given in the paper with formulae, and then written a piece of > C code. It is not complete code, but could be a reasonable start. > Maybe there is one typo in the paper -- I have

Hello! i have to re-code about 1Gb of mp3's. And i want to keep tags. o i use Delphi component to save tags, use lame to unpack file, then use =========Beginning of the citation============== OggEnc v0.8 (libvorbis rc2) (c) 13.08.2001 Michael Smith <msmith@labyrinth.net.au) =========The end of the citation================ to pack it - and i cannot pass comments there, as the encoder

This is a mail in response to streamripper being threatened by legal action from Live365. The DMCA strikes again. jack. ----- Forwarded message from Fred von Lohmann <fred@vonlohmann.com> ----- Delivered-To: jack@localhost.cantcode.com Delivered-To: jack@icecast.org X-Authentication-Warning: penguin.onehouse.com: majordomo set sender to owner-pho@onehouse.com using -f X-Sent: 31 May 2001

Another problem I would like to speack about : tags. Each format appears to create its own tag. TwinVQ and WMA tags are limited but Mp3 has a good tag system (although the "genre" category could be improved). Now ogg develops a new kind of tagging. I imagine converting all my tags with thousand of tracks... real nightmare... Is there an authority or a project to standardiza tags ?

2007/7/24, Ivo Emanuel Gon?alves <justivo@gmail.com>: > > On 7/24/07, Greg M. <contrabassboy@yahoo.com> wrote: > > Ivo, Harry is asking about CPU usage of the DEcoder, > > not the ENcoder. > > Sorry, my bad. > > I believe that FLAC's decoding is somewhat faster than most other > lossless formats, as FLAC is a much less complex format. Maybe

In order to experiment with the theora encoder, I bought a mini-DV camcorder a couple of weeks ago; a Panasonic PV-GS9 for $250. I wanted a mini-DV because it is claimed that capturing video from the camcorder to a computer over a firewire cable results in an exact copy of the recorded video. That was not my experience. The video I captured to my computer over the firewire cable, using both

Richard Lee wrote: > But there is a caveat. Does Vorbis coupling preserve "phase" relations? Any references explaining this in simple detail? Sebastian : >"coupling" is a rather loose term in the sense that it doesn't exactly specify HOW it's done. It can be understood as the opposite of coding channels independently. Obviously there are many ways to do

Hi, Does anyone have an idea about the possibility to apply psychoacoustic models as the ones in mp3 or AAC to a CELP coder? Thanks! /Pontus <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 'speex-dev-request@xiph.org' containing only the word 'unsubscribe' in the

I can't tell whether this is really serious: http://www.informatik.fh-hamburg.de/~windle_c/Logologie/MP3-Gefahr/MP3-risk.html Some comments please! <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'

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Some thoughts for the new year: 1) MDCT is good for image coding 2) image coding and audio coding are two very different things 3) combine 1 and 2 4) if a psycho model is good, after leaving out what it tells you you can without hurting quality, applying the same model should yield the same results as you got before 5) from 4: decode -> encode -> decode should result in (almost) the