similar to: Help understand decoding of stereo vorbis data

Displaying 20 results from an estimated 500 matches similar to: "Help understand decoding of stereo vorbis data"

2003 Mar 15
0
mapping mux vector question
Hello everybody According to "vorbis-spec-ref.html" paragraph: "mappings", the vector [vorbis_mapping_mux] should contain the following: 4. if [vorbis_mapping_submaps] is greater than one, we read channel multiplex settings. For each [j] of [audio_channels] channels: 1. vector [vorbis_mapping_mux] element [j] = read 4 bits as unsigned integer 2. if the value
2003 Mar 16
2
Some Questions
Hello I posted these to the vorbis maillist, but got no answers, so I try it here again: Currently, I'm having a very close look at the spec and discovered some mistakes, misundestandings: 1--------- in "vorbis-spec-res.html" paragraph Residue format Reside format partitions each......... ^ heres the 'u' missing. <p>2-------------- Probably another one in
2015 Aug 16
0
Questions about the accuracy of the spec
Hello, I have three questions, though all of which already mentioned by other people in the mailing list, about the accuracy of the Vorbis I Specification published on Feb 27. 1. On page 34 section 4.3.4., explanation of the situation where there are only one submap is omitted, and it is difficult to understand that the decoder should assume in such cases that all the audio channels belong to
2009 Aug 20
2
Problems with dovecot/sendmail combi.
Hi, I am really stuck here. I am trying to setup imap for an external mail server. I have a freebsd server running sendmail / dovecot. I am transfering the existing mail from an exchange 2003 server to the mailserver using imapsync. This works fine, but gives errors when it tries to make a submap, also thunderbird gives an error "Mailbox doesn't allow inferior mailboxes" when I try
2006 Oct 07
3
merge and polylist
Greetings: I would like to kindly ask for a little help. The rough code is: #________________________________________________________ dat=data.frame(read.delim(file="all.txt", header = TRUE, sep = "\t", quote="\"", dec=".",na.strings = "NA")) nc=read.shape("astae.shp", dbf.data=TRUE, verbose=TRUE) mappolys=Map2poly(nc) submap
2008 May 30
2
relationship of the auto_translated_physmap feature and the shadow_mode_translate mode of domain
2004 Aug 06
0
to stereo or not to stereo .. that is the question
hello, a very short while ago there was a brief discussion when to use stereo and when to use mono. as you know, Radio France kept its word and now is webcasting in ogg. In total Radio France (through tv-radio.fr/ycast.com) is webcasting eight different stations, using the ogg format. on http://cuba.calyx.nl/~oink/oggstreams/rfoggstreams.html you can find all the streams with m3u files and
2011 Sep 26
1
Wine & HD3D S3D Stereo 3D, Stereoscopic 3D ?
http://www.amd.com/us/products/technologies/amd-hd3d/Pages/how-it-works.aspx Games: http://tridef.com/ignition/3d-games.html http://www.iz3d.com/games Desktop: http://forums.fedoraforum.org/showthread.php?t=241306 Wiki: http://en.wikipedia.org/wiki/3-D_film
2005 Nov 15
1
Mono encoding w/ a stereo source.
Crew, I've run into something a little odd with the vorbis encoder and would like some input. I use SpacialAudio's SAM3 Broadcaster and am having problems with the ogg encoder when I create a mono output stream. It seems as if the signal level of the left and right sides are being combined before the encoding process, leaving the sound muddy and overdriven. As such, if I reduce
2002 Jul 30
1
Why Point-Stereo at 160 kbps ?
Hi there ! I checked Vorbis' performace for mono files at approx. 64-80 kbps (it does a good job) and I'm wondering why the current OggEnc still uses Point-Stereo (>10kHz) for -q4 and -q5 I know, we're usually unable to percieve those phase correlations above 10 kHz, But a Dolby Prologic Decoder isn't. I think a future version of OggEnc which is able to use a user-selectable
2007 Sep 19
0
Cannot disable stereo coupling
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <body bgcolor="#ffffff" text="#000000"> Good morning !<br> <br> For my project, i want to disable stereo coupling in audio vorbis encoding.<br> <br> On the web documentation (<a
2009 Mar 22
0
Stereo changes in exp_stereo
Hi, I've been doing several stereo changes in the exp_stereo branch and I think it's now ready to be merged. Could everyone who care about stereo try the exp_stereo branch and report any problems before I merge it in the master branch? Thanks, Jean-Marc
2011 Jan 12
1
Stereo <-> Mono
Hi, Does Celt (in particular version 0.7.1) exploits correlation between the two channels in stereo mode? In practice, is it possible to use the two channels as two mono signals without affecting quality? Thanks Best Regards Riccardo Riccardo Micci Senior DSP Engineer, Wireless Group Cambridge Consultants Science Park, Milton Road Cambridge, CB4 0DW, England Switchboard: +44 (0)1223
2011 Jan 31
1
Artifacts in One Channel of Stereo C55x Implementation
Hi guys, I am on a C55x stereo implementation of CELT 0.7.1; I am using 100 sample frame size and writing 58 Bytes per Packet. At the output of the decoder I see one channel reconstructed perfectly, but the other channel has random corruption that appears to be a sinusoid with a period of the frame size. The artifact is non-periodic and appears to happen randomly during the audio stream. Anyone
2013 Jun 15
1
Lowest bit rate for stereo
Just a quick question. What is the lowest possible bit rate for encoding in stereo in opus? Peter
2013 Nov 20
0
Stereo channel separation
On 11/20/2013 03:37 PM, O'Connor, Kevin wrote: > I have an application I intend to use Opus for that involves creating > recordings of two-party conversations where each party is saved as a > separate channel. Audio may be later processed or analyzed on a > per-party basis so if audio in one channel affects the other channel, it > could create problems. My question is, if I use
2013 Nov 20
1
Stereo channel separation
>On 11/20/2013 03:37 PM, O'Connor, Kevin wrote: >> I have an application I intend to use Opus for that involves creating > recordings of two-party conversations where each party is saved as a >> separate channel. Audio may be later processed or analyzed on a >> per-party basis so if audio in one channel affects the other channel, >> it could create problems.
2013 Nov 05
1
Opus Stereo for Speech
Hi, I have a question regarding the stereo capabilities of Opus. I would like to establish a connection between two ends via Wi-Fi and the signals that are to be transmitted are of speech kind. It mean on both ends speech is both recorded and played back as stereo. Now would the delay and loss characteristics of the speech transmission at a certain bitrate be the same as Mono voice transmission?
2014 Apr 07
0
Stereo channel separation
O'Connor, Kevin wrote: > Is this bleedover expected? I found an older copy of opus-tools (0.1.6, libopus 1.0.2) and it does not appear to > have the bleedover between channels, so I think this was introduced in 1.0.3 or 1.1. This bleed-over should not be possible with the CELT layer (_especially_ not during silence), but it is possible with the SILK layer. 1.1 added automatic speech
2015 Nov 25
0
Stereo voice not being retained
Hey Kevin! Once you start dropping under (I think) 32kbps, the codec naturally starts losing stereo separation for the benefit of quality. If you really want perfect stereo at 16kbps CBR (this is horrifically low in my opinion) you might be better off splitting the audio and encoding each part at 8kbps CBR. Or, there may be a magic "enforce 100% stereo" one could pass? (doesn't look