Displaying 20 results from an estimated 20000 matches similar to: "Bit allocation in CELT"
2011 Feb 24
1
What does f mean in CELT's source code?
Hi,
I have noticed in the source code of CELT the numbers?like 2.f ,? 102.f? ,?
0.1f? ,? etc...
What does the " f "? mean in this case?
Is the number 102.f?? equal to the number 102
or the number 0.1f?? equal to the number? 0.1?!
Thank you for your attention.
Osama Y. Fadhil.
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2010 Dec 05
1
What CELT version to choose
Hi,
?I'm trying to improve CELT according to the bit allocation problem and
psychoacoustic masking which was mentioned in the paper "A High-Quality Speech
and Audio Codec With Less Than 10-ms Delay". What software version do you prefer
for me to choose?on my study?
Best Regards,
Osama Y. Fadhil.
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2011 May 18
1
PEAQ(CELT)
Hello,
?
I don?t know whether this is the right place to discuss such a question here. I?m sorry.
?
I want to evaluate the CELT codec using a known MATLAB implementation of the PEAQ software. If anyone has used this test program he could see that one of the input parameters (3rd one) shifts the frames for both the reference and the under test audio signals. Another parameter (4th one) marks the
2010 Nov 23
0
CELT Output audio file does not run
Dear all,
Iam a student pursuing MSc degree in computer science at the University of
Babylon,Iraq. My project is about the CELT. I have chosen version 0.3.2 of the
software, lcc compiler, windows xp environment. One of my current problems is
that when I execute the?testcelt program tool,?the output audio file can not be
payed. Could you help me, please? I have tried some media players ,like
2010 Dec 09
0
Equation 6 in the CELT paper
Hi,
Can you explain to me how did you get equation (6) in the CELT paper
"A High-Quality Speech and Audio Codec With Less Than 10-ms Delay"?
Best Regards,
Osama Y. Fadhil.
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2010 Dec 02
1
Function call
Hi,
Can you tell me where is the function that calls the function
compute_allocation() in CELT codec version 0.3.2 ?
Best Regards,
Osama Y. Fadhil.
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2011 Apr 25
3
Possibility of Incorporating a psychoacoustic model in CELT
Good Morning;
Iam asking whether any one have knowledge about is it possiple to incorporate a
psycoacoustic model?(specifically?I mean ?MPEG-1 psychoacoustic model 1) into
the CELT codec(any version even older versions of the coder,?no matter) Iam
using version 0.3.2.
Kind Regards;
Osama.
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2016 Jun 10
1
[PATCH] Add static bitrate allocation and force CELT-only for ambisonics encoding
This patch adds a static bitrate allocation for ambisonics encoded with the
multistream API. We allocate 4 bits to the mono channel (channel index 0)
for every 3 bits allocated to other channels. The allocation is static
because it does not depend on the input audio.
This patch also forces the underlying encoders to use CELT only for
ambisonics.
--
Thanks,
Michael Graczyk
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2012 Aug 01
1
CELT license
I too would like to know the status of the opus IP holders. From what
I've seen on the CELT and opus lists, it seems that the CELT part of
opus is covered by patents from Xiph and Broadcom, and the SILK part of
opus is covered by the rest. All of the IP holders except Qualcomm and
Huawei have released their patents to the public as far as opus is
concerned, and the general consensus from
2008 Oct 29
1
Celt allocation bugfix
In some conditions (sample rate, frame size, bytes per frame, audio
data) the CELT allocator may run out of bits and attempt to place a
negative number of pulses in a band. This causes an array underrun and
other assorted nastyness. Patch attached. (It should also apply
cleanly to 0.5.0 which is also impacted by this bug).
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2011 Jul 12
0
celt-dev Digest, Vol 34, Issue 2
So, once all those things are in place what Andrew says WILL happen?
I think plans as important as that deserves an announcement.
Roadmap for the project? Future directions for the main committers?
Are there patent issues?
Date: Mon, 11 Jul 2011 20:45:14 -0400
> From: Gregory Maxwell <gmaxwell at gmail.com>
> Subject: Re: [CELT-dev] Mailing list and project shutdown
>
2015 Jul 06
1
Disable SILK/CELT only?
I saw the custom API, but nothing explicitly says "CELT-only" just
"custom sample rate and frame size".
I'll dig further now that you've pointed me in a direction.
Thanks,
-a
On 7/6/15, 6:18 PM, Jean-Marc Valin wrote:
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> Hash: SHA256
>
> I believe what you want is called Opus custom (OPUS_CUSTOM in the
> code).
2017 Sep 25
2
Force Opus/CELT to encode 2 mono instead of 1 stereo
Hi, folks,
I have an old CELT thing that I'm updating to Opus and I'm trying to get
individual pieces upgraded. My first task is upgrading the CELT encoder
to Opus.
The old CELT thing treated the L and R channels as independent mono
streams, encoded them somehow with CELT to form one bitstream, sent one
bitstream across, and then unpacked it manually after the decoder.
Can I do that
2015 Jul 06
0
Disable SILK/CELT only?
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I believe what you want is called Opus custom (OPUS_CUSTOM in the
code). With that you can compile only the contents of the celt/
directory and use it like the old CELT.
Jean-Marc
On 07/06/2015 06:48 PM, Andrew Lentvorski wrote:
> Is there a configuration or compile flag that lets me disable the
> SILK portion of the codec and use CELT
2011 Aug 05
1
CELT/Opus Status Update
Hi everyone,
I've made several posts recently about CELT being "replaced" by the Opus
codec ( http://opus-codec.org/ ) and I thought it was time to give an
update on what's going on.
As many of you know, I've been involved at the IETF on this new Opus
codec, which essentially merge (a modified version of) Skype's SILK
codec with CELT. This is more than just two codecs
2013 Nov 14
2
How to negotiate 'Opus/Celt only'?
Hi,
Since our device can only handle the Celt part of Opus (due to a MIPS limitation), we have two questions:
1. Is it possible to via SDP force the remote party to send a specific mode of the 32 different possible modes or to force the remote side to use CELT only?
2. In the reference implementation of Opus it looks like the only way to force the encoder to use CELT only
2010 Dec 22
2
CELT 0.10.0, upcoming bit-stream freeze, demo page
Hi,
This isn't that new anymore, but I'd let everyone know that CELT
0.10.0 is out. We've improved the quality quite a bit since the last
release and we fixed many bugs. For this release, Monty has written an
extensive demo page at:
http://people.xiph.org/~xiphmont/demo/celt/demo.html
Although it's not final yet, it contains a lot of information of CELT,
recent changes and
2011 Aug 05
1
CELT Test case failures
Hi ,
We've downloaded the CELTV0.11.1 source code from celt-codec.org . But
having trouble with mathops-test and tandem-test unit test that
exercises internal components of CELT codec, please find attached
document for each test case failure in details.
Also could you please give some inputs on CELT Low complexity code and
full version of the code, point me source code to CELT
2016 Jan 01
0
Confusion on CELT or Silk
Hello Joshua,
I understand. My main aim to first understand the processing overhead when
decisions have to be made for a fixed audio in signal, reduce it so that I
can then begin making an update to reduce the memory (on chip flash and
RAM) footprint.
Thanks
Amit
On Thu, Dec 31, 2015 at 7:58 PM, Joshua Bowman <silverbacknet at gmail.com>
wrote:
> Opus will always use whatever mode it
2011 Feb 15
1
CELT 0.11.1 is out
Hi everyone,
I'd just like to announce CELT 0.11.1 (sorry about failing to announce
0.11). The bit-stream is now is "soft-freeze", which means we won't
change it unless we find bugs -- which we did between 0.11 and 0.11.1.
The API should also be close to the final API. Compared to 0.10.x there
are also small quality improvements, mostly at high bit-rate.
I'd also like