Displaying 20 results from an estimated 7000 matches similar to: "Fixed point modules in floating point"
2017 Nov 03
0
Fixed point modules in floating point
On 11/03/2017 05:48 AM, Vega G wrote:
> I was testing floating point Opus encoder. But it's calling few
> functions which are implemented in fixed point . I tried to find
> corresponding floating point functions in source. But not available.
> Please help me on this.
The same code does both fixed-point and floating-point. If you define
FIXED_POINT, then the macros and types
2005 Sep 17
1
Unifying fixed point and floating point
I've been browsing around the speex-1.10 source tree.
Firstly I see 'float' is still used in many places. Can't we change them all to the appropriate type (spx_wordxx_t or similar) defined in arch.h ?
Secondly I see there is a lot of duplication regarding real-valued constants. One way would be to say:
#ifndef FIXED_POINT
#define CONSTANT(x) (x)
#else
#define CONSTANT(x)
2004 Aug 06
1
fixed / floating point
I've noticed that the nb decoder uses floating point in several places
even when using FIXED_POINT. I don't have to deal with lost packets,
so I'm mainly interested in innov_gain and pgain in no transmission
mode (nb_celp.c around line 1272) and g and exci in vocoder mode
(around line 1557). Is there a reason that these places must use
floating point, or would it be possible to
2013 Dec 20
2
Scaling fix for float input
Need to adjust scale for floating input.
diff -NaurbB a/libspeex/resample.c b/libspeex/resample.c
--- a/libspeex/resample.c 2013-12-20 17:40:27.326576921 +0500
+++ b/libspeex/resample.c 2013-12-20 17:40:16.918577087 +0500
@@ -915,7 +915,7 @@
if (in) {
for(j=0;j<ichunk;++j)
#ifdef FIXED_POINT
- x[j+st->filt_len-1]=WORD2INT(in[j*istride_save]);
+
2017 Jun 16
2
[EXTERNAL] Re: Submitting a patch that exposes VAD voiced/unvoiced signal type
Hi Peter,
Can you say a little bit more about what you're doing exactly with the
information you're exposing and how? unfortunately, I don't have a
concrete proposal in mind right now. That's in part because I don't
quite understand the use case, but also because it's really hard to
expose this kind of information in a way that both avoids breaking
application with new
2017 Oct 10
2
[PATCH] Support for Channel Mapping 253.
Hi Drew,
On 10/10/17 02:29 PM, Drew Allen wrote:
> 2) Someone on this list might know better than I do on that one, but for
> the new _ctl_va_list() calls, I believe the convention is for va_start()
> and va_end() to appear in the caller rather than in in the va_list()
> function itself.
>
> *My understanding is that it's impossible to pass ellipsis to another
>
2004 Sep 29
3
Fixed point bug in 1.1.6
Please compare samples:
http://www.ivo.pl/ivo2/sound/krwawa_org.wav
http://www.ivo.pl/ivo2/sound/krwawa_fixed.wav
http://www.ivo.pl/ivo2/sound/krwawa_float.wav
krwawa_org.wav is original file.
Both output files was created using same program by compressing from wav
to speex, then decompressing from speex to wav (using speex_encode_int
and speex_decode_int).
Only difference was used speex
2017 Oct 04
3
[PATCH] Support for Channel Mapping 253.
Hi Drew,
Here's some comments on your patch (in no particular order):
1) I see that it's adding an #include of stdarg.h to opus_multistream.h
Is that left over from the previous version?
2) Someone on this list might know better than I do on that one, but for
the new _ctl_va_list() calls, I believe the convention is for va_start()
and va_end() to appear in the caller rather than in in
2005 Oct 26
2
Noisy sound quality with Blackfin in WB-mode
Hi Jean-Marc,
> Can you confirm I'm understanding everything correctly? You encode
> with
> the same encoder and then decode with either A) blackfin assembly and
> fixed-point or B) fixed-point only on Blackfin. Then A) sounds bad and
> B) sounds good. If you do the same in narrowband, it sounds OK. Is
> that
> correct? If that's the case, it's *probably* some
2005 Oct 26
1
Noisy sound quality with Blackfin in WB-mode
Hello Jean-Marc,
> Could you try mixing the encoders and decoders (encode with one
> version,
> decode with the other) to see whether the problem is in the
> encoder, the
> decoder or both.
I tested that,and the results are: The fixedpoint+blackfin encoder
used together with the fixedpoint-only decoder produces an bad
sounding file (for all the combinations for quality
2005 Dec 26
2
Fixed-point VAD?
Hi,
I found this message concerning VAD and was wondering whether VAD has been
ported to fixed-point in the latest version?
Thanks,
SingHui
---------- Forwarded message ----------
From: Jean-Marc Valin <Jean-Marc.Valin@usherbrooke.ca>
Date: Jul 22, 2005 1:02 AM
Subject: Re: [Speex-dev] Fixed-point
To: gue baja <gue_baja@yahoo.com>
Cc: speex-dev@xiph.org
Hi Baja,
Here's a quick
2016 Aug 26
2
Using opus on ATMEL 32-bit RISC microcontroller
Hello Daniele
It would be worthwhile to attach an external serial flash or USB thumb
drive, if the intent is store data. This allows for far more flexibility in
storage
Regards
Amit
On Fri, Aug 26, 2016 at 11:02 AM, Jean-Marc Valin <jmvalin at jmvalin.ca>
wrote:
> On 26/08/16 11:40 AM, Daniele Barzotti wrote:
> > You're right! I forgot to say that I need only the encoder
2006 Dec 04
2
master request not found
I am setting up dovecot 1.0-rc15 as a proxy. When I try to log in, I
get errors such as the following:
Dec 4 17:39:23 vega dovecot: Dovecot v1.0.rc15 starting up
Dec 4 17:39:24 vega dovecot: auth-worker(default): mysql: Connected to
localhost (ad_mail) Dec 4 17:39:31 vega dovecot: auth(default): client
in: AUTH 1 PLAINservice=POP3 lip=xx.xx.xx.xx
rip=xx.xx.xx.xx
2009 Oct 02
1
URGENT HELP NEEDED!!! PLEASE!!
Hi,
I have a big big problem. I compiled Samba 3.2.6 for Solaris 8 and 10.
Environment is Windows 2003 SFU. So far it looked like everything works
as expected.
Under Solaris 8 i get all groups of a user. Under Solaris 10 I can only
see the primary group set under the Unix Attributes Tab in W2k3.
I have compiled with the following settings:
./configure --with-ads --with-krb5=/opt/VEGA
2005 Sep 26
1
Precomputing the remaining floating point operations.
I see there are still some floating point operations left in the codec
init(ialization) code. Changing that code to fixed point is not only
difficult (due to the trigonometric functions etc) but may also degrade the
precision.
Here is an idea whereby we can easily precompute (record) all those values
on a powerful processor and then use (replay) them on an embedded processor
/ DSP. The only
2017 Jun 07
2
Submitting a patch that exposes VAD voiced/unvoiced signal type
Hi Peter,
There's two main issues with a patch like the one you're proposing.
First, the data is only valid when SILK is being used and is essentially
undefined in CELT mode. The second issue is that by exposing internals,
it makes it impossible to improve these algorithms since it would break
API compatibility. I'm not fundamentally against trying to expose some
information, but
2024 May 16
2
Current version of R, 4.4.0 and patch to correct the bug fix related to the RStudio viewer pane on Windows systems
Do you receive RDS objects from unknown (untrusted) sources?
?? If not - the security issue is a non-issue as I understand it.
On Thu, 16 May 2024, 16:21 Vega, Ann (she/her/hers) via R-help, <
r-help at r-project.org> wrote:
> I help to coordinate the USEPA's R user group. We have over 500 members
> and our security officer has required us to update to R version 4.4.0
>
2016 Aug 26
3
Using opus on ATMEL 32-bit RISC microcontroller
Hi Jean-Marc,
thanks a lot for your reply.
> Well, the first question is whether you want encoding, decoding, or
> both. If there's one you don't need then you can remove that
> (unfortunately, there's no easy way right now).
You're right! I forgot to say that I need only the encoder side (and
only for voice).
My application have to acquire a 16bit 8KHz PCM stream and
2004 Dec 05
1
fixed-point version
Hello, I've just joined the list.
I'm interested in helping on the fixed-point version of Speex. If there is
anyone currently directing this work, would they please contact me and let
me know how I can help.
Thanks,
-paul
--
"Democracy is two wolves and a lamb voting on what to have for lunch.
Liberty is a well-armed lamb contesting the vote ... If you make
yourselves sheep,
2006 Sep 07
3
bad VAD in preprocessor of version 1.2beta1
Hello, first of all, sorry for the joke in the subject ;-)
I have successfully update the speex library my software was using from
1.1.12 to 1.2beta1 (1.1.13).
It is a VoIP software, where i set preprocessor VAD on and use the
result of speex_preprocess() to determine if there is voice activity.
I must say that it works fine...since i have update to the new version.
Ive been testing, and