similar to: low bitrate modes ?

Can anyone give me a brief explanation in filling the vorbis_info struct? I need to play around with higher/lower nominal kbps, 1/2 channels and different sample rates..... but donno what other value need to be change (ie modes, maps, times, floors......... ). Thanks Ray --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/

At 06:34 PM 7/29/02 +1000, you wrote: >I have got ices running with quality -1 (and on my roommates crappy computer >speakers it sounds damn near the real thing - better than FM radio anyway)... > >I'm just wondering if it's posible to configure it with a maximum bitrate, or >a nominal bitrate. i.e. to use managed bitrates instead of quality (I know >it's a no no,

I have got ices running with quality -1 (and on my roommates crappy computer speakers it sounds damn near the real thing - better than FM radio anyway)... I'm just wondering if it's posible to configure it with a maximum bitrate, or a nominal bitrate. i.e. to use managed bitrates instead of quality (I know it's a no no, but this is streaming!). Mark <p>--- >8 ---- List

Hi, I'm experimenting with managed mode encoding with specifying maximum bitrate. I call: vorbis_encode_init( &vorbisInfo, 2, 44100, -1, 96000, 96000); to initialize the encoding. To my surprise, it seems the maxbitrate value of 96000 doesn't have an effect, the bitrate of the

I'm sorry if this question has been asked before; I've looked through the archives and haven't seen anything. The problem I'm seeing is that oggenc's VBR encoding doesn't seem to pay attention to any sort of bitrate limitation, either the -m or bitrate_hard_min settings. It isn't that it temporarily dips below the minimum; the average for the whole (in this case,

An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/vorbis/attachments/20041014/25f999a2/attachment.htm -------------- next part -------------- ? dear All, Iam working on OGG VORBIS TREMOR code to port and optimize on ARM processor. Can any one make me clear regarding the relation ship between this 1. What is the relation ship between Quality factor and Bitrates?

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

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

May I suggest that the up coming RC4 or 1.0 needs some quality selection adjustments. It has been said that if you are happy now with a particular quality setting, later releases will produce the same quality but reduce the average bitrate. This is not currently the case. IMHO -q4 in CVS is producing almost perfect results and features audio frequencies up to 21khz -- almost CD quality.

Greg, I just tried encoding digital silence; I'm seeing [roughly] 0kbps like I should be with the mainline. How did you run your test? notfish% head --bytes=10000k /dev/zero > ! zero.raw snotfish% ./encoder_example < zero.raw > zero.ogg snotfish% chaining_example < zero.ogg Input bitstream contained 1 logical bitstream section(s). Total bitstream playing time: 58 seconds

With this patch, ogginfo will display bitrate information (upper/lower/nominal/average bitrate). It is patched against today's CVS code (main branch). I am also working on true VBR support in oggenc (the user can specify the minimum & maximum bitrate) and will send a patch when it's done. <HR NOSHADE> <UL> <LI>application/x-gzip attachment: ogginfo-diff.gz

Hi all, I've got a question on regarding how to find out the duration of an ogg vorbis file. Sorry if it should already be mentioned somewhere in the docs, but I couldn't find out how to do it the best way. So, I can read the [bitrate_nominal] field from the identification header (if it is set), find out the size of the audio data (by subtracting the size of the three headers from the

Alright, I was able to recompile ices2beta, which connects to icecast, but now I'm getting: WARN playlist-builtin/playlist_read Corrupt or missing data in file When I try to play a basic playlist with 2 files (that are fine, and do exist). I have set the sample and nominal bitrates at 256000, which is also the encoding for the song... Does the bitrate of the song have to be exactly the same

I've been implementing Ogg FLAC support in an editor I'm working on, and I must admit to being frustrated by the lack of support for the codec on the Ogg layer... and this is more than lacking granulepos. The codec's I've worked with, and my own (Writ), use Page 0 for general information about the codec. Specifically, the samplerate, bitrate, quality, number of channels, all

Can anybody tell me where I can find some info on the new books? I noticed there are now A-E. What exactly does this mean? How does it translate to higher and lower sampling frequencies and bit rates? Ideally I'd like something in the 11kHZ, 8bit mono area... I also noticed this struct: /* CD quality stereo, no channel coupling */ vorbis_info info_B={ /* channels, sample rate, upperkbps,

Hi, <p>apparently, I didn't delete my test samples ... I found them. :) Here's a small table of what nominal bitrate fits to which quality at what sample rate. Quality levels inbetween -1 and 0 are possible, but I didn't test them. Nominal bitrates of those quality settings will be somewhere between those of -1 and 0 and therefore can be guessed. q/channels || -1/mono |

Hi All, I'm interested in incorporating support for the OggVorbis file format in a future update to my MP3 search engine, AudioPhilez (http://www.audiophilez.com). To be able to do this, I need some simple information. I would greatly appreciate it if you could help me out here: 1. Will a standard MP3 decoder find 'sync' in an .OGG file? My spider searches for sync (11 bits on) and

On Sun, 29 Aug 2004 17:53:29 -0700, Ralph Giles wrote: > On Mon, Aug 30, 2004 at 03:03:28AM +0100, Andy Baxter wrote: > >> Is there any way to bring the bitrate in ices2 down below 32 kbps? > > Generally the trick for this is to downsample the audio before encoding. > You can ask ices to do this with a resample stanza in the config file: > > <resample>

Hi, all. I'm new to this list, and I know that my question touches on a FAQ. I'm just hoping to get more information than "it's a priority item, but it's not done yet." (Basically what the FAQ says.) I've been encoding about 20 minutes of mono audio each week to as small a file as I can, so it can be served via html. As long as the result is understandable,

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