search for: monaur

I’m using a Windows development component which uses vorbis.dll, ogg.dll, vorbisenc.dll for encoding an Ogg Vorbis file. It's all working well except for one user occasionally has a 1 hour file appear as 2 hours and it plays at half speed. It is being converted from stereo to mono before feeding the encoder with a channels=1 configuration. Here is an example file which will be available for

...nce my resumed search for a codec. In my initial searching I found speex, but before I try to engineer the solution, I'd like to get any advice on use of speex in with the expected source material, which is likely to be noisy (static and stuff mixed in with the source audio). The source audio (monaural) will be pre-filtered to fit with 300-3000 Hz passband (can be slightly narrower if need be), and may not always be a single voice (that is, may be>1 voices interfering with the audio passband, or even non-voice such as tones and other stuff that would appear in the passband of the receiver.)...

...#39;one channel' and then passing stereo data will not convert the stereo data to mono. The encoder encodes whatever it is given... Monty On Tue, Jan 3, 2017 at 6:51 PM, IHARA Hiroka <ihara_h at live.jp> wrote: > Hello Ross, > > The attachment appears at least to me as a valid monaural Vorbis audio. > > It says in its header that there is only one audio channel, no stereo > mapping is in use, and there is only one audio vector per frame. > > Actually it does not sound well, in a way that makes me wonder if two > channels are unexpectedly merged into one... (th...

Josh Coalson wrote: > --- smoerk <smoerk@gmx.de> wrote: > >>i didn't find anything about tagging flac files as surround files. i >>think there should some possibility to tell the player how to play a >>multi-channel file (how to map the different channels to the speakers >>or if there some decode is needed, like for ambisonic files). > > > it

Hi, Can someone please comment about the below issue [root at host0040 kaushal]# file obd-demo.mp3 obd-demo.mp3: MPEG ADTS, layer III, v1, 256 kBits, 44.1 kHz, Monaural [root at host0040 kaushal]# sox obd-demo.mp3 -e stat sox: Failed reading obd-demo.mp3: Do not understand format type: mp3 [root at host0040 kaushal]# sox -V obd-demo.mp3 -r 8000 -c 1 -t ul -w vm-intro.ulaw sox: Failed reading obd-demo.mp3: Do not understand format type: mp3 [root at host0040 ka...

...9;ve got friends who have produced pieces with more than 256 tracks.) Given that, you might well just be able to add another code for "ambisonic, get 8-bit number of tracks from end of header," and then use the number of tracks to figure out the format. 1 W (kinda dumb way of doing monaural) 2 UHJ (stereo-compatable) 3 WXY (first order without height) 4 WXYZ (first order with height) 5 WXYUV (second order without height) 6 WXYUVW' (second order without height, mixed 1st/2nd order data) 9 WXYZRSTUV (second order with height) 10 WXYZRSTUVW' (s...

Hello Ross, The attachment appears at least to me as a valid monaural Vorbis audio. It says in its header that there is only one audio channel, no stereo mapping is in use, and there is only one audio vector per frame. Actually it does not sound well, in a way that makes me wonder if two channels are unexpectedly merged into one... (thus it might sound like ha...

Does anyone have a recommendation for a headset that plugs into the Mic/Line-out port on a PC? Ideally something like the Plantronics SupraPlus. I'd prefer Monaural instead of stereo, and cheap in price but not in quality. Thanks for any suggestions... Jeremy Mann Director of IT Texas Health Management Group Direct Line: 817-310-4956 Main Line: 817-310-4999 Fax: 817-310-4990 Email: jmann at txhmg.com ________________________________ This e-mail, facsimil...

...the text for this release: * Fixed repaint of last column in master track list. * Turned radio buttons into combo box in config dialog, used Qt Designer to make it instead of hand-coding. * Now plays sample rates other than 44100 and channel count other than 2, so you can play 22050Hz monaural recordings if you're that way inclined. Ok, the only important new feature is that you can play tracks that aren't 44100 stereo. I recorded one track to 22050 mono with oggenc and it has nasty clipping or something going on, so I don't know how useful this is, but hey, it had...

Hi, What USB headset would you recomend? We have some laptop soundcards that are really bad and I would be glad if you could share your experiences when changing to a USB headset instead of using the built in soundcard in your computer. Thanks! Regards, Jan

Has anyone ever thought configuring asterisk on a pair of pc's to act as remote broadcast terminals for the broadcast radio industry? Seems like a stripped down asterisk on a laptop with a PCMCIA ISDN modem connecting to another asterisk instance on a PC at a radio station would work nicely. Use one of the higher quality codecs, interface the remote mixer to the sound card on the

Hello everyone, I tried to compress audio with opus-1.3.1/src/opus_demo.c recently, which works fine on mono and stereo data . Now I want to compress interleaved 7 channels pcm/wav ( recorded by Microphone array :6mic+ 1reference signal ) with opus, But I have not found an interface that compress multi-channels pcm/wav. 1、Is there a multi-channel compression interface can be used in my case? If

...uced pieces with more than 256 tracks.) > > Given that, you might well just be able to add another code for > "ambisonic, get 8-bit number of tracks from end of header," and then use > the number of tracks to figure out the format. > > 1 W (kinda dumb way of doing monaural) > 2 UHJ (stereo-compatable) > 3 WXY (first order without height) > 4 WXYZ (first order with height) > 5 WXYUV (second order without height) > 6 WXYUVW' (second order without height, mixed 1st/2nd order data) > 9 WXYZRSTUV (second order with hei...

Hi, Can someone please comment about the below issue [root at host0040 kaushal]# file obd-demo.mp3 obd-demo.mp3: MPEG ADTS, layer III, v1, 256 kBits, 44.1 kHz, Monaural [root at host0040 kaushal]# sox obd-demo.mp3 -e stat sox: Failed reading obd-demo.mp3: Do not understand format type: mp3 [root at host0040 kaushal]# sox -V obd-demo.mp3 -r 8000 -c 1 -t ul -w vm-intro.ulaw sox: Failed reading obd-demo.mp3: Do not understand format type: mp3 [root at host0040 ka...

...>> In my initial searching I found speex, but before I try to engineer >> the solution, I'd like to get any advice on use of speex in with the >> expected source material, which is likely to be noisy (static and >> stuff mixed in with the source audio). The source audio (monaural) >> will be pre-filtered to fit with 300-3000 Hz passband (can be >> slightly narrower if need be), and may not always be a single voice >> (that is, may be>1 voices interfering with the audio passband, or >> even non-voice such as tones and other stuff that would appea...

...for different frequency bands, depending on the values of the adj_stereo structure. Looking at the precomputed_couple_point function in psy.c, the last two statements: *mag = premag * floormag; *ang = 0.f; eem to imply the angle (diffuse sounds) is set to zero. So point stereo is essentially monaural, since angle=A-B so if angle is 0, A=B? Hence Vorbis "joint" stereo is essentially a mix of lossless stereo and mono, right? It seems like a very strange way of coupling as I would have expected point stereo to at least have a heavily quantised angle.....that is, not many bits go...

...e to place calls by saying "call Pat", etc. etc. etc. and of course to receive calls. ACES Component 1 EM unit-Ear and Mouth piece, this is a headset or handset with a two position switch and a 4 conductor jack that plugs into the IP unit(ACES component 2). FOr prototyping two typical monaural PC headsets into a 2.5mm switchbox would do fine. Switch position one connects the 1st mike and earpiece to the 2 "talk" pins on the Talk/TTSControl port on the IP unit and Switch position two connects the 2nd mike and earpiece to the 2 "ttsControl" pins on the Talk/TTSCon...

...oes not suffer from this effect, which I initially attributed to the overloaded sound. Then recently I made another recording of spoken material from a different BBC channel, of an old (undoubtedly mono) program, that I chose to encode both as stereo (looking at the raw audio samples, it was not a monaural broadcast) and downmix to mono. Listening to the resulting files I noticed the same effect in the compressed stereo file, that was absent in the downmixed file, so now I hypothesize that this effect is due to some phase variation between the two channels, or whatever it is that is causing the di...

...oes not suffer from this effect, which I initially attributed to the overloaded sound. Then recently I made another recording of spoken material from a different BBC channel, of an old (undoubtedly mono) program, that I chose to encode both as stereo (looking at the raw audio samples, it was not a monaural broadcast) and downmix to mono. Listening to the resulting files I noticed the same effect in the compressed stereo file, that was absent in the downmixed file, so now I hypothesize that this effect is due to some phase variation between the two channels, or whatever it is that is causing the di...

...lly the other 20% is quite an acceptable trade-off. > > > ACES Component 1 > > EM unit-Ear and Mouth piece, this is a headset or handset with a two > > position switch and a 4 conductor jack that plugs into the IP unit(ACES > > component 2). FOr prototyping two typical monaural PC headsets into a > > 2.5mm switchbox would do fine. Switch position one connects the 1st > > mike and earpiece to the 2 "talk" pins on the Talk/TTSControl port on > > the IP unit and Switch position two connects the 2nd mike and earpiece > > to the 2 "tts...