search for: multiband

I was pondering of the best way to implement voice-coloring within Asterisk, e.g. pass a channel thru a multiband equalizer and modify it enough where it could be distinguished from other voices in a conference call. This could make conference calls much less confusing. Perhaps the easiest way would be to use sox as the equalizer but I am not familiar enough with * to know how to put a channel thru sox. Anyon...

...traffic having priority over that from my two ''remote'' locations... :) Anyway, I''m looking for a way to allow packets from the two remote locations to compete for bandwidth on equal footing (after the appropriate delay has been applied, of course). So, instead of a prio multiband qdisc, I''d be interested in a round-robin one. Can I accomplish this with CBQ ? What would the tc commands have to look like -- I''m getting slightly confused by the split/defmap syntax, and by trying to figure out when it''s a clas vs a qdisc I''m supposed to be d...

Hi I recorded many hundred of CDs in Ogg Vorbis with exactly the same parameters. I can see very big difference of volume level from one CD to another when I play it onto my computer or my portable device (iRiver HP120). So, I have two questions : * Is the reason of this fact is that it's depends on the volume level at burning time of the original CD ? If not, what is the reason ? * Is

Using narrow, wideband, and ultra-wideband encoding on a short 16khz wav gave .spx's of 3,789 ... 2,935 ... and 1,875 bytes. Even after reading the manual, smaller files for the higher frequency encoding seems counter-intuitive. My mp3 at 32 kbps on the original 22khz wav is 3,866 with a quality comparable to speex wideband on the converted 16khz wav, so speex is a 24% improvement in size.

...gt;> remember which algorithm they used. IIRC, not CELP. > >4.4 kbps is almost certainly some variant of CELP. No, not CELP. I googled around a bit and found the site of the company that made our speech coder. They are still in the business: http://www.dvsinc.com Seems like they call it MultiBand Excitation (MBE). >Plus 16k 24-bit words is already 48 kB and I'm sure Speex can fit into smaller than that. First, I am not sure that board had full 16K words. I said 16K because that's the maximal size allowed by ADSP-2111 architecture. Second, code density of Blackfin family is far...

...I use it for the core basics of mixing that I absolutely cannot afford to screw up. Some filters (like the declipper and deverberator) are unique. Even among those that aren't, Postfish as implemented deliberately sets speed/quality tradeoff much higher than most existing apps. The multiband compander is a case in point; other free apps do implement this effect. To my knowledge, all use the simplest/fastest method, operating directly on the FFT of a windowed block. An FFT-based multicompander is fast, but the aliasing and frequency multiplication artifacts (you eventually end...

...I use it for the core basics of mixing that I absolutely cannot afford to screw up. Some filters (like the declipper and deverberator) are unique. Even among those that aren't, Postfish as implemented deliberately sets speed/quality tradeoff much higher than most existing apps. The multiband compander is a case in point; other free apps do implement this effect. To my knowledge, all use the simplest/fastest method, operating directly on the FFT of a windowed block. An FFT-based multicompander is fast, but the aliasing and frequency multiplication artifacts (you eventually end...

This afternoon I've transferred our Ogg Vorbis Icecast2 streams from darkice to the ices2 encoder. Apologies if you were trying to listen; I had to stop and start the streams a few times. They should be stable now as I'm off down the pub now! As a reminder, the URL for the streams is at http://www.virginradio.co.uk/thestation/listen/ogg.html. Ices2 takes slightly different parameters to

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'

Sounds like you need to fix the problem at the source first: balancing the levels going *into* your mixing board so that they're not all over the place coming out. You'll never fix that with any hardware or software device. I use a program called ecasound to do software dynamics processing, but you'd have to hack liveice pretty extensively to use it in that situation. Software