Displaying 13 results from an estimated 13 matches for "12kbps".
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128kbps
2015 Jan 22
2
Opus for speech: VBR vs CBR
...CE.
I have a few questions here:
1.
When I choose VBR mode, the codec seems to choose the bitrate on its own.
However, that seems to be an issue on mobile devices. In some cases, when I
configure the bitrate to say 20kbps, I see that the outgoing codec bitrate
at runtime is sometimes far less (11-12kbps even). That leads to a lower
received audio quality.
When I choose CBR mode however, the outgoing bitrate is fixed at 20kbps and
produces better audio quality.
Is there a way to bias the VBR mode to use a value closer to the configured
target bitrate or fix this low bitrate issue in any other way?...
2005 Nov 28
1
Question from XM Radio
...y doing the job we had expected.
It's the long standing wish that everyone wants... More for less. We
are just seeking a bit of magic that just may not be there. Ideally
finding a codec that can perform tollerably/intelligibly at 2-4Kbps.
And still perform quite well for complex speech at 10-12kbps.
Just keeping my eyes (ears) out for something that I have never
considered before.
I really appreaciate the time you've taken to reply, Thanks.
Terry
_______________________________________________________________________
Terry Carr
Manager, Broadcast Applications
XM SATELLITE RADIO...
2004 May 19
14
Can anyone fix this?
Hi,
I appologise for the bad ettiquite of this, but I have tried looking for some
HTB examples that would help me, and am having trouble understanding how the
tc filters should work, but I can''t figure out why this isn''t working.
I''ve written this script, based upon the ultimate traffic shaper at LARTC, to
try and shape for me and my 3 housemates.
The idea being to
2005 Jul 06
8
HTB and bittorrent, won''t work
...t; ) ;
class ( <$ssh> ) if tcp_dport == 8080 ; /*Changed port from 22 to 8080 */
class ( <$otro> ) if 1 ;
htb () {
class ( rate UPRATE, ceil UPRATE ) {
$emule = class ( prio 8, rate 6kBps, ceil P2P ) { sfq; } ;
$smtp = class ( prio 1, rate 6kBps, ceil 12kBps ) { sfq; } ;
$ssh = class ( prio 0, rate 3kBps, ceil 5kBps) { sfq; } ;
$otro = class ( prio 1, rate 8kBps, ceil UPRATE ) { sfq; } ;
}
}
}
}
Also, given the priorities it''s expected to let me surf the web or chat in msn
messenger rather than take my whole bandw...
2015 Jan 23
0
Opus for speech: VBR vs CBR
...ere:
>
> 1.
> When I choose VBR mode, the codec seems to choose the bitrate on its own.
> However, that seems to be an issue on mobile devices. In some cases,
> when I configure the bitrate to say 20kbps, I see that the outgoing
> codec bitrate at runtime is sometimes far less (11-12kbps even). That
> leads to a lower received audio quality.
> When I choose CBR mode however, the outgoing bitrate is fixed at 20kbps
> and produces better audio quality.
>
> Is there a way to bias the VBR mode to use a value closer to the
> configured target bitrate or fix this low bi...
2019 Oct 31
1
Antw: Re: Q: Bandwidth vs. bitrate
Hi!
Useful advice, thanks! Actually I had been using foobar2000 to recode, because it just makes it so easy to convert multiple files while keeping the metadata (I confess, I'm a "tagger"). But it's easy to miss some encoder option when being presented some default suggestions in a dialog form...
Apart form that I always had the impression that Opus could be quite smart
2005 Jul 07
1
HELP PLEASE BITTORRENT SHAPING (HTB)
...(raw[33].b >> 4) & 1 ;
class ( <$otro> ) if 1 ;
class ( <$p2p> ) ;
htb () {
class ( rate UPRATE, ceil UPRATE ) {
$smtp = class ( prio 1, rate 6kBps, ceil
12kBps ) { sfq; } ;
$ssh = class ( prio 0, rate 3kBps, ceil
5kBps ) { sfq; } ;
$ack = class ( prio 2, rate 8kBps, ceil
15kBps ) { sfq; } ;
$otro = class ( prio 1, rate 8kBps, ceil
UPRATE ) { sfq; }...
2024 Aug 09
2
Opus Tools -- low bitrates, new features in 1.5, "expect-loss"
> > I am talking about the original sweep.
>
> The original sweep stops pretty close to 24 kHz.
I mean the original sweep _as_encoded_, sorry.
2019 Nov 01
2
Q: Bandwidth vs. bitrate
Hi!
So here is what I got with different encoder settings; still not sure what the "best" setting is. 6kbps seems to add distortions, so I tried 12kbps.
MP3-Original: LAME 3.99r, 120kbps, 44100Hz, Stereo, VBR V5 (22:23, 19.8MB)
Opus (--raw-rate 44100 --bitrate 56 --vbr --comp 5): (44:45?, 23.4MB): Broken
Opus (--bitrate 56 --vbr --comp 5 --ignorelength - %d): (22:23, 12.1 MB, 74kbps)
Opus (--bitrate 6 --vbr --comp 10 --ignorelength - %d): (1MB, 6k...
2024 Aug 09
1
Opus Tools -- low bitrates, new features in 1.5, "expect-loss"
On Aug 07 22:04:21, petrparizek2000 at yahoo.com wrote:
> > The encoded opus file is 48kHz,
> > so how would the output wav be resampled from 16kHz?
To be clear: did you mean the opus output of opusenc
or the wav output of opusdec?
> > What are those "clear signs" exactly?
>
> The things that I can hear while listening at 1/2 or even 1/4 of the
> original
2019 Oct 30
5
Q: Bandwidth vs. bitrate
Hi!
I have some MP3 audio material which is basically speech with some background noises, essentially > 120Hz and < 5kHz.
I had the idea to reduce the file size by recoding the material to Opus at 56kbps. Unfortunately the result is a file sampled at 48kHz much larger than the original.
I hope you agree that it does not make sense to create a file larger than the original (MP3). Of course
2005 Dec 27
9
2.6.14 - HTB/SFQ QoS broken?
Hello,
First of all, I already contacted Martin Devera, the developer of HTB, and
he told me to search for help on this mailinglist, thus I am describing
my problems here now...
I am kind of seriously annoyed by QoS as I have been trying for over 3 years
to get it working properly - first I did not understand how it works, then
it seemed not to work, then it was working perfectly for half a
2005 Nov 04
4
Latency/burst problem with HTB
Hi all :)
I''m new to this list, as I''m new too to traffic shaping ;) I''ve
set up an FTP server in my ADSL line and I wanted it to serve as fast
as possible as long as I don''t use my outgoing ADSL bandwidth, and
I''m currently using HTB for that (succesfully, I must add).
The problem is (when the FTP server is serving higher than its