similar to: Dolby pro logic and vorbis

Can I reduce the bitrate of an OGG file without recompressing everything? It would be useful to convert high bitrate ogg to lower bitrate ogg for portable players. Olaf <p><olaf@ kjws.com> for every kind of mail, except spam! :-) --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message

The last week, after 5 minutes of astonishment for the great compression ratio achieved by ogg (370MB wav of voice -> 14 MB OGG, 28 kbps without any perceivable and/or significant quality loss), I had the idea of use ogg to stream my voice, in order to chat in almost-realtime with a friend (only one, of course: I have a 56k modem). Here the idea: I put a streaming server on my machine (I

Well, in the world of audio compression it's never boring... :-) Full press release from Dolby: http://www.aac-audio.com/press/aac.pr.0104.AACencoder.html My comments: Looks like Dolby will start licensing AAC encoder that targets consumers and the products they use like CD rippers, jukebox players, etc. Also, it looks like that this encoder will be Low Complexity AAC ("The AAC Consumer

Read this article on Dolby shutting down Freeware AAC, also Ogg Vorbis and LAME are mentioned as well with some comments from Jack Moffitt. Here is the link (taken from mp3 encoder mailing list): http://news.webnoize.com/item.rs?eID=20001121&ID=11113 Greetings, Aleksandar --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To

Read this article on Dolby shutting down Freeware AAC, also Ogg Vorbis and LAME are mentioned as well with some comments from Jack Moffitt. Here is the link (taken from mp3 encoder mailing list): http://news.webnoize.com/item.rs?eID=20001121&ID=11113 Greetings, Aleksandar --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To

This mail depends upon the fact that I don't have a couple of good earphones ;-) I read in the site that q=6 is a very high quality, but does it contain perceivable differencies from the original? (for 95% of people, of course). I also found q=6 to produce files slightly bigger (1/10 bigger) than those produced with lame VBR q=2 (about 192 bps on average). I always thought LAME VBR q=2

> > So > > it's closer to Dolby AC-X than to VQ. Unfortunately, I'm not sure that it's > > not patended by Dolby. > > Could you be more specific? More than anything else, we need to know more > about the patent waters we're navigating. > > Monty As Dolby AC-X is using enveloppe of the sound since several years, and as it seems that Dolby was

Arc wrote: > However, support for (ie) 48-bit-float should not have to be created, Where are you going to find a 48 bit float? Is there an IEEE standard for that? I know some floating point DSP chips use a 48 bit float internally, but if there is more than one they are unlikely to be compatible and they certainly cannot be read by standard CPUs without having pull each value apart into

http://mp3licensing.com/other/index.html They list: Atrac 3, (E)Pac, AAC ..and various patents of theirs they believe that these formats rely on.. then basically say: "We have not yet determined our licensing policy for this format" Vorbis is not mentioned.. Regards, Tom --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage:

First: I am not a lawyer, this is no legal advice! On 16 May 2017, at 0:25, Robert Jeffares wrote: > Jack, > > I am using AAC+ encoded by Darkice and distributed on Icecast2 on a > Ubuntu server. I had to install a number of open source libraries and > compile darkice from source. No licence. This sounds like it would violate the license, given that the FAQ on

Hi, As I´ve understood things, the Ogg Vorbis format supports more that two channels (stereo). Is there any tools to encode x sourcefiles into one .ogg file? I am a musican and am thrilled with the ide of makeing music in surround (or in more than stereo). This leads to my next question: is there (developing) any decoders for multichannel oggs to, let us say, 4.1 or 5.1 surround? Wouldn´t it

On Fri Sep 21 16:31:21 2012, Stephen F. Booth wrote: > 6.1: L R C LFE Ls Rs Cs (MPEG 6.1 A layout) I'm confused. WAV puts the rear centre before everything but 'Front left of center' and 'Front right of center'. Are you saying you prefer the extra front channels to to side/rear surround, or that you prefer the MPEG order to the WAVE order? -r

Jared (jared@celab21.students.csee.uq.edu.au) wrote : > Saw an article today on /. which reports that Dolby are insisting the > NETBSD dudes remove the ac3dec package from their site. Someone suggested > that we need an open source solution. ac3dec is already open ( GPL ). > Could Vorbis in the Ogg framework be this solution, can we create a pretty > simple 5.1 stream? I

Hi folks, I'm trying to get a handle on the many lossless audio formats from the perspective of a software developer. I love the FLAC format because it is open source and it performs very well. But there is also the MLP (Meridian Lossless Packing), AAC (Apple Lossless), and probably some Microsoft format(s) that compete in the same feature set. These formats all achieve

Arc wrote: > Ok so we cap it to 64bit, since much more than that doesn't make sense (96bit > would be a "long double" C type) On x86 CPUs, "long double" is 80 bits. > I really don't like this idea, but I will entertain, formatting it as follows: > > ID Type Bits > 0 Int 8 > 1 uInt 8 > 2 Int 16 > 3 Int 24 > 4 Int

On 20030610: Gregory Maxwell wrote: (in reply to Ralph Giles) >> I assume you're aware of the technical documentation on dolby's site? >> (http://www.dolby.com/pro/) In particular the surround mixing guide has >> a lot of detailed guidelines. I don't have any practical experience >> with it though, so I can't vouch for it. >Yes I am. I've done a

It's really pretty simple. You can download the code and build it all you want... ...for yourself. It cannot be distributed, sold, or used commercially in any way. That's all. /g. -----Original Message----- From: Icecast [mailto:icecast-bounces at xiph.org] On Behalf Of Robert Jeffares Sent: Tuesday, 16 May, 2017 17:03 To: icecast at xiph.org Subject: Re: [Icecast] Frauenhofer signing

I noticed that my previous message is not very complete so I send here an "enhanced version". Please disregard the old one an reply to this one only. ( you can delete the ATTENTION word from subject ) Wilson (defiler@null.net) wrote : > There are two ways to decode multi-channel audio. In hardware, or in > software. > Hardware: A receiver or processor takes a Dolby Digital

Hi. I have two CDs that the artists inteded for simultaneous listening. They even provide instructions on how to start two CD players with the minimal time shift. (for those interested - the CDs are Neurosis/Times Of Grace and Tribes Of Neurot/Grace) I've heard that Vorbis can encode multiple streams. I've already encoded both albums into regular 2-channel .ogg files. The questions

I made a few updates to OggPCM2 http://wiki.xiph.org/index.php/OggPCM2 reflecting the latest discussions. Could everyone have a look at it and see if they agree. Otherwise, what do you feel should be changed? Anyone wants to speak in support of chunked PCM? For all those that are just tired of this mess like me, please express yourself in the new spec I created: OggPCM3