Displaying 20 results from an estimated 9000 matches similar to: "(no subject)"
2009 May 09
2
Another paper on CELT
Hi,
For those interested in reading more on CELT, here's another paper that
just got accepted. That one focuses on the low-complexity mode and is
based on 0.5.1.
J.-M. Valin, T. B. Terriberry, G. Maxwell, A Full-Bandwidth Audio Codec
with Low Complexity and Very Low Delay, Accepted for EUSIPCO 2009.
http://people.xiph.org/~jm/papers/celt_eusipco2009.pdf
Cheers,
Jean-Marc
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
2010 Jan 12
1
Seamless Looping
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Hi,<br>
<br>
I''ve been working on seamless looping of our CELT encoded sound banks.<br>
2009 Oct 23
1
Implications of reducing MAX_PERIOD
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Hi,<br>
<br>
I have been looking into reducing memory usage of the CELTDecoder and
was wondering what the implications of reducing MAX_PERIOD were?
Reducing it to 512, I haven''t noticed any
2010 Dec 10
3
Cross Platform Audio Library
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Hi all,
I was wondering if anyone had any advice on an audio library that is
better suited to be paired with Celt in terms of latency. I'm working
on an application that I would like to have running on both
windows/Linux systems. I started by using the OpenAL library but I have
run into an issue when feeding OpenAL small mono sample sizes that
2009 Jul 22
2
Allocating all memory up front
Hi guys,
I'm currently working on a CELT implementation for FMOD, and one of the
things we want to do is have all memory required allocated beforehand.
This is before we have any information about what sounds will be played.
We would like to create all of our CELTDecode instances up front.
Because celt_mode_create() requires a sample rate and number of channels
passed in, this
2010 Feb 12
2
Optimisation Help
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Hi,<br>
<br>
I have been looking into optimising the CELT decoder for speed to make
it acceptable for
2008 Nov 24
6
adding celt support to netjack some questions.
hi.
i am currently adding celt support to netjack.
very nice to see a free low-latency codec :)
i currently dont require robustness against packet loss,
because the sync code of netjack does not handle packet loss very
gracefully. how much bandwidth is wasted for this feature ?
is it sensible, to have the data downsampled berfore encoding , in
order to reduce bandwidth ? i suspect that just
2001 Jun 30
2
libao: src/plugins/arts/Makefile.am
Clobbering CFLAGS is not nice.
--- src/plugins/arts/Makefile.am.orig Sat Dec 30 06:03:25 2000
+++ src/plugins/arts/Makefile.am Wed Apr 11 00:40:35 2001
@@ -16,13 +17,12 @@ artssources =
endif
-INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/include
+INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/include @ARTS_CFLAGS@
libdir = $(plugindir)
lib_LTLIBRARIES = $(artsltlibs)
libarts_la_LDFLAGS =
2001 Nov 30
1
Ogg Drop?
Hi,
I asked this before, but it seems it hasn''t been updated. Who is responsible
for this and what are the problems?
The changes are in CVS (IIRC), but not in the current EXE available for
downloading.
Olaf van der Spek
Almere, Holland
Olaf@XCC.TMFWeb.NL
http://xccu.sourceforge.net/
http://xcc.tiberian.com/
--- >8 ----
List archives: http://www.xiph.org/archives/
Ogg project
2002 Mar 05
1
ogg vorbis on the pocket pc
Hi,
i'm not too familiar with how the ogg vorbis community works, so
i hope this is within the topic of the list, but i didnt really want to
leave this thing i've did out in the dark either. :)
i've just ported libvorbis, libogg, and vorbisfile stuff to the pocket pc
a while ago, it was pretty straight forward (just add a few more #ifdefs
around the ftoi function and some others) and
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.
2009 Apr 15
1
Journal paper on CELT
Hi guys,
Just wanted to let everyone know that the paper we submitted to IEEE
Trans. on Audio, Speech and Language Processing has just been accepted.
You can find the manuscript (hasn't been edited by IEEE yet) at:
http://people.xiph.org/~jm/papers/celt_tasl.pdf
Along with Tim's LCA 2009 presentation at
http://www.celt-codec.org/presentations/ these are the best sources of
information
2009 Jul 06
2
CELT 0.6.0 released, submitted as IETF draft
Hi everyone,
I'm pleased to announce version 0.6.0 of CELT, with many quality
improvements. This includes better stereo coupling, better handling of
transients, and better handling of highly tonal signals. In addition,
packet loss robustness has been improved through the optional use of
independent (intra) frames. CELT now supports a larger dynamic range,
suitable for encoding 24-bit audio
2010 Sep 13
1
Small mistake in celt_types.h for MacOS X
Hi JM,
When porting my project to the Mac, I found that the definition for
"celt_int16" and "celt_uint16" are wrong for the MacOS X Framework in
celt_types.h, and need to be changed to "int16_t" and "u_int16_t"
respectively. Just thought you ought to know.
John Ridges
2015 Mar 04
1
[RFC PATCH v1] Decode(float) optimize using libNe10
Hello All,
I extended the libNE10 optimizations for float towards
mdct_backwards/opus_ifft.
I am able to get about 14.26% improvement for Decode use
case now on my Beaglebone Black. Please see [1] for measurements.
Questions
1. Since this patch needs to go in after Encode [2] patch)
should I submit this as patch series?
2. Since Jonathan Lennox posted intrinsics cleanup [3]
patch, should
2017 Jun 21
1
Opus 1.2 released!
Xiph.Org is pleased to announce that we've released Opus 1.2.
The 1.2 release includes:
. Speech quality improvements especially in the 12-20 kbit/s range
. Improved VBR encoding for hybrid mode
. More aggressive use of wider speech bandwidth, including fullband
speech starting at 14 kbit/s
. Music quality improvements in the 32-48 kb/s range
. Generic and SSE CELT optimizations
.
2009 Nov 06
0
FMOD released with CELT support.
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Hi Guys,<br>
<br>
Just thought I might let you guys know that the latest development
version of the FMOD API (4.29.01) has been released with support for
CELT as a bank format. <br>
<br>
2010 Mar 06
1
CPU utilization for CELT vs. AAC-LC
Hello - I was wondering how CPU intensive CELT is when compared to AAC-LC.
Are there any metrics or analyses available on this topic? Many thanks for
any help!!
Best,
David
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2009 Jul 24
1
STATIC_MODES, fft and prob members
Hi Guys,
I've just been looking into STATIC_MODES. My plan is to generate and
store the modes as part of our sound banks when they are encoded.
I have noticed that even with STATIC_MODES turned on, celt_mode_create
still allocs and generates the fft and prob members (via
pitch_state_alloc and quant_prob_alloc respectively). I also notice that
in dump_modes.c, these two members are just