search for: fixedpoint

Displaying 18 results from an estimated 18 matches for "fixedpoint".

Did you mean: fixed_point
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 and complexity I mentioned in my previous postings, and also for both WB and UWB mode). The combination fixedpoint-only encoder together with the fixedpoint +bl...
2005 Oct 26
2
Noisy sound quality with Blackfin in WB-mode
...oint 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 kind of bug and/or Yes, that's right, except one thing: I always use the blackfin +fixedpoint optimized encoder *and* decoder or the fixedpoint-only optimized encoder *and* decoder at one time. And I do every encoding/ decoding on the Blackfin. > invalid assumption in the blackfin assembly. Could you check if that > happens on all wideband modes (and none of the narrowband modes...
2005 Dec 09
0
Patch for mdf.c without fixedpoint
The latest SVN version breaks mdf.c when running without fixed point. Patch: Index: mdf.c =================================================================== --- mdf.c (revision 10563) +++ mdf.c (working copy) @@ -169,6 +169,8 @@ acc[i+1] += (X[i+1]*Y[i] + X[i]*Y[i+1]); } acc[i] += X[i]*Y[i]; + X += N; + Y += N; } } #endif
2017 Nov 03
2
Fixed point modules in floating point
Hi, 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. Vega -------------- next part -------------- An HTML attachment was scrubbed... URL:
2004 Aug 06
3
Speex on Nokia 6600
Hmm, what these instructions do? (I know nothing about ARMs; I have some knowlege about x86 assemblers and programming). Cant we use pure standard C++ or Java? Does Speex work with fixedpoint math? (As far as I know Java on 6600 has no builtin floatingpoint, there is emulation class somewhere on the net, but it is probably painfully slow.) I do not know if this processor has builtin floatingpoint math module. When "current" code would be able to do it in Your opinion? &lt...
2005 Oct 25
2
Noisy sound quality with Blackfin in WB-mode
Hello all, I'm testing the Speex codec for my diploma thesis on a BF-533 Blackfin under uCLinux (2005R3 RC3 release). I successfully compiled the Speex (1.1.11-svn) and I can encode/decode wav-files on my STAMP-board using the speexenc/speexdec sample apps. But I encountered that the decoded file sounds strange/noisy, when compiling with "--enable-blackfin-asm" +
2019 May 08
2
RFC: On removing magic numbers assuming 8-bit bytes
...contribution from > the sponsors in other areas would also be a key factor. I'm not sure how to interpret that, but our team here at Ericsson is fairly large, we have been working with this out-of-tree backend since 2011 and as a group, we contribute to upstream e.g. by helping out with the fixedpoint upstreaming, by solving and filing TRs (we're pretty good at testing I'd say), improving debug information and more. > > > > > Cheers. > > > > Tim. > > _______________________________________________ > > LLVM Developers mailing list > > llvm-...
2006 Sep 06
2
Speex 1.2beta1: Better, smaller, faster and more
Speex 1.2beta1 announcement: This new release brings many significant improvements. The quality has been improved, both at the encoder level and the decoder level. These include enhancer improvements (now on by default), input/output high-pass filters, as well as fixing minor regressions in previous 1.1.x releases. A strange and rare instability problem with pure sinusoids has also been fixed. On
2002 Sep 07
1
libvorbis on Symbian EPOC
Hi, I saw earlier correspondence (e.g. http://www.xiph.org/archives/vorbis-dev/200202/0131.html) on this list about porting the Ogg Vorbis libs to Symiban EPOC. I'm wondering if anyone really succeeded in doing this, and would share his experiences with me. Thanks, <p>Akos --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/
2006 Sep 06
0
Speex 1.2beta1: Better, smaller, faster and more
...ng? Can uclibc influence speed? We want to use speex and are considering a few ARM cpu's and the sis550 cpu (forerunner currently). Now I have to try and verify that it will encode from the soundcard on this device in realtime and transmit the data (multicasting). I was hoping that the non fixedpoint performance would be better, can it be my fault or is this expected behaviour/performance? Is there a timeframe for the 1.2.0 stable release? Ballpark? Thanks, Kobus Wolvaardt Kreon Technology On Monday 04 September 2006 16:09, Jean-Marc Valin wrote: > Speex 1.2beta1 announcement: > >...
2019 May 09
2
RFC: On removing magic numbers assuming 8-bit bytes
*From: *JF Bastien via llvm-dev <llvm-dev at lists.llvm.org> *Date: *Thu, May 9, 2019 at 1:30 PM *To: *Jesper Antonsson *Cc: *dag at cray.com, llvm-dev at lists.llvm.org I don’t think you have consensus to move forward at this point in time. My > expectation, which I think represents LLVM’s historical approach, is that a > path to full support be planned out before this effort starts.
2004 Aug 06
2
Speex on Nokia 6600
Hi, I have one question: Will Speex run in realtime (both encode / decode probably simulateusly) on Nokia 6600 --- basicaly ARM9 104MHz with Symbian 7s after porting to its C++ or Java? I am thinking mostly about the worst quality encoding (optionally duplex). Can this processor make it? Oh 6600 has something about 6mb memory if I remember good. Plase cc kangur@polcom.net in replies.
2016 Jun 28
2
[BUG] 3.8 alignment/struct padding
...The equivalent C struct: typedef struct { real32_T s; real_T d; int8_T i8[4]; uint16_T ui16[4]; int32_T i32[100]; uint64_T ui64[6]; int64_T i64[64]; char_T c[3]; creal_T mycomplex; int32_T enumeration_int32; int8_T enumeration_int8; uint16_T enumeration_uint16; cint32_T fixedpoint; int32_T fixedpoint2; int128m_T fimw[10]; real_T fisd1; real_T fisd2; real_T fisd3; int8_T fisb; real_T fid; real32_T fis; } struct0_T; In C the offsets are computed as: 8 16 20 28 432 << This was 428 in LLVM; 432 is divisible by 8, but 428 is not. 480 992 1000 1016 1020 102...
2019 May 09
3
RFC: On removing magic numbers assuming 8-bit bytes
...gt; > > > I'm not sure how to interpret that, but our team here at Ericsson > > is > > fairly large, we have been working with this out-of-tree backend > > since > > 2011 and as a group, we contribute to upstream e.g. by helping out > > with > > the fixedpoint upstreaming, by solving and filing TRs (we're pretty > > good at testing I'd say), improving debug information and more. > > Ok. > > p.s. If my wording came across as implying any disrespect, sorry! I > was > making a general point, not thinking about how it might...
2019 May 09
3
RFC: On removing magic numbers assuming 8-bit bytes
...areas would also be a key factor. > > > I'm not sure how to interpret that, but our team here at Ericsson > is > fairly large, we have been working with this out-of-tree backend > since > 2011 and as a group, we contribute to upstream e.g. by helping out > with > the fixedpoint upstreaming, by solving and filing TRs (we're pretty > good at testing I'd say), improving debug information and more. > > > Ok. > > p.s. If my wording came across as implying any disrespect, sorry! I > was > making a general point, not thinking about how it might b...
2008 Feb 02
0
Patch to make analysis data available.
...udio path, and also give users much more detailed information on what part of their audio system they should improve. It also adds a #define SPEEX_API_VERSION, which allows compile-time checking and #ifdef'ing for whether these (and other new) functions are available. Last time I programmed fixedpoint was on a 68000, and that was democode where speed>>>correctness. I've compiled the library with both FIXED_POINT and FLOATING_POINT, and verified that both give approximately the same results, but my conversion of the weights in fixed-point desperately need some work. --------------...
2019 May 06
3
RFC: On removing magic numbers assuming 8-bit bytes
On Mon, 6 May 2019 at 10:13, James Courtier-Dutton via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Although the above is mentioning bytes, looking at the "/ 8" and "& 0x7" makes it look like the author meant octets and not bytes. > Bytes can be any size of bits. I don't think you'll have much luck trying to make that stick for a general audience,
2006 Jul 30
34
ruby suitable for financial apps?
hi there, I am about to embark on a mission critical financial web application, and was wondering weather ruby on rails is the best fit for this type of project. More specifically I am worried about floating point errors. Would it be more appropriate to use a more statically typed framework (.NET)? thankyou. -- Posted via http://www.ruby-forum.com/.