search for: floor0

Do anybody know, from where I can get an Ogg Vorbis File, which uses floor0 coding. I know that the current encoder doesn't use floor0. Anyway, to be fully compliant with the Vorbis Specification the decoder still must be able to decode floor0. I am working on a Vorbis port to a DSP. I want to go sure, that if the need of floor0 decoding will again occur, this als...

Hello I'm working on a fix-point decoder for AOS/Bluebottle - the proprietary OS of ETH Zurich. I've some problems with Floor0-curve-computation: I don't know what the little omega [cos(w)] stands for, line 3 of the official Vorbis documentation. Does anybody knows what this value means? I've tried to get the answer from the jOrbis and Tremor, but both seem to do - among other things - Floor0-Curve-Computation...

Hello, everybody. I am looking for same Ogg Vorbis file which have 8192 size frame or using floor0. According to the Ogg Vorbis spec, the maximum frame size is 8192. But I cannot find that size of frame in the Ogg Vorbis file. Also I cannot find Ogg Vorbis file using floor0. If you have, pleas open them. Or can you tell me where I can find them? Sincerely. Eunjik --- >8 ---- List archi...

...max Audio Packet size ? 3)What is the max size of setup header? 4)Any idea how to start for making a 24Bit fixed point reference code? Shall I start with floating point or Tremor or Tremor Low Mem Version? 5) What window sizes in Ogg Vorbis are normally supported for audio portable player? 6) Floor0 is termed to be obsolete, Does this mean non of the commercially available encoder supports Floor0? Please clarify the above points if possible. Thanks in advance. Best Regards, ---------------------------------------------------------------------------------------------------------------------...

Hello, It seems there is an error in the algorithm for floor0 decode in section 6.2.2 of the Vorbis specification. Here's the relevant part: 3 3) [coefficients] is an empty, zero length vector 4 4) [booknumber] = read an unsigned integer of ilog( [floor0_number_of_books] ) bits 5 5) if ( [booknumber] is greater than the highes...

Hi, I think that the introduction of the lsp_look lookup array isn't ideal and found a better change that can be applied. in floor0_map_lazy_init() you can replace look->linearmap[W][j]=val; by look->linearmap[W][j]=vorbis_coslook(M_PI*val/look->ln); and in vorbis_lsp_to_curve you then replace float w=vorbis_coslook(wdel*k); ... }while(map[i]==k); by float w=map[i]; ... }while(map[i]==w); then get rid of the ln...

Hi All, I need some clarifications regarding the mismatch I found in the code and the specification. (a) In the specification, the bark(x) equation is given as: bark(x) = 13.1 atan(.00074x) + 2.24 atan(.0000000158(x^2)) + .0001x whereas in the code it is given as: #define toBARK(n) (13.1f*atan(.00074f*(n))+2.24f*atan((n)*(n)*1.85e-8f)+1e-4f*(n)) Which one of these is the proper one ? (b)

Hi, it seems to me as if all vorbis-files only contain floors of type 1 and residues of type 2. Is it possible to "force" the encoder to somehow create a vorbis-file with the other floor and residue types? Tor <p><p><p>=================================================================== EASY and FREE access to your email anywhere: http://Mailreader.com/

Hi, Am trying to run beta4 encoder on a Sun machine. Want to compare floor0 and floor1. Do not have autoconf and automake. Got the encoder to compile with a simple makefile. The only define i am using is NO_FLOAT_MATH_LIB. The encoded file when played(winamp) gives out plain noise. Am i missing any other flags/defs? -Cathy <p>---------------------------------...

Is there a archive with a collection of different .ogg files encoded with different settings that can be used to verify compatibility? * Different window size (e.g. != 256,2048) * Much larger codebooks and other extreme cases that are not generated using a standard encoder. * floor0 Regards -- / Johannes Sandvall --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subje...

...ported in the following post: http://www.mail-archive.com/tremor at xiph.org/msg00072.html Where floor1 is used the RMS differences are already small: about 0.7 However with a couple of trivial modifications I have been able to reduce the RMS differences to about 0.1 The big problem is that where floor0 is used the RMS differences are *enormous*. I have investigated these and they are: a) partly due to an insufficient number of fractional bits in certain places, b) partly due to insufficient precision in the approximation of transcendental functions (cos, atan, exp, sqrt). I have been able to sign...

...o: cvs@xiph.org Subject: [xiph-cvs] cvs commit: vorbis/vq huffbuild.c latticetune.c make_residue_books.pl Date: Sun, 3 Jun 2001 22:50:13 -0700 (PDT) From: xiphmont@xiph.org (Monty) Precedence: bulk Reply-To: cvs@xiph.org xiphmont 01/06/03 22:50:12 Modified: lib codebook.c codebook.h floor0.c mapping0.c os.h res0.c vq huffbuild.c latticetune.c make_residue_books.pl Log: Cascading fully functional --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, se...

...s: there are some double function names: forward/inverse pack/unpack look/free_look/free_info and maybe more. If they were renamed to time0_forward etc. profiling would be a lot easier. Oh, and add -fno-inline to $PROFILE in the Makefiles (or configure). Most expensive function in the decoder is floor0.c:inverse() Now hacking on it... Dag dag, Segher --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/

...the vorbis spec". (pure Java, OO-style) (I downloaded the long-awaited-all-in-one-PDF) The data structures are quite ready, I can successfully load the codec setup packet and all its components it's containing. <p><p>So far so good.... Here's my first note concerning the floor0-setup : I'm supposed to read the parameters (floor0_order ... floor0_number_of_codebooks) as unsigned integers and therefore they can't be negative (see Step 7) Do I have to treat them as signed values ? What about the num_codebooks = readBits(4) + 1 which will range from 1 to...

Hi, I need another clarification regarding the standard. In floor0 header decode (setup), the point no.7 says that if any of [floor0_order], [floor0_rate], [floor0_bark_map_size], floor0_amplitude_bits], [floor0_amplitude_offset] or [floor0_number_of_books] are less than zero, the stream is not decodable But as we see, all those values are read as unsigned inte...

..., this is odd, since it JUST DID: /bin/sh ../libtool --mode=link cc -fno-common -O4 -ffast-math -fsigned-char -o libvorbis.la -rpath /Local/Public/bungi/Vorbis/lib -version-info 0:0:0 mdct.lo smallft.lo block.lo envelope.lo window.lo lsp.lo lpc.lo analysis.lo synthesis.lo psy.lo info.lo time0.lo floor0.lo res0.lo mapping0.lo registry.lo codebook.lo sharedbook.lo iir.lo lookup.lo bitbuffer.lo -lm -L/Local/Public/bungi/Vorbis/lib -logg rm -fr .libs/libvorbis.la .libs/libvorbis.* .libs/libvorbis.* cc -dynamiclib -undefined suppress -o .libs/libvorbis.dylib mdct.lo smallft.lo block.lo envelope.lo w...

...<p>Best Thanks Daniel Here the message output from compiling. ----------------------------------------- /usr/ccs/bin/ld -G -z defs -h libvorbis.so.0 -o .libs/libvorbis.so.0.3.0 mdct.lo smallft.lo block.lo envelope.lo window.lo lsp.lo lpc.lo analysis.lo synthesis.lo psy.lo info.lo floor1.lo floor0.lo res0.lo mapping0.lo registry.lo codebook.lo sharedbook.lo lookup.lo bitrate.lo -R/usr/local/lib -R/usr/local/lib -lm /usr/local/lib/libogg.so -lc Undefined first referenced symbol in file __ashrdi3 block.lo __floatdid...

Hi According to vorbis I spec, there are several configurations. There are 2 formats of floor, 3 formats of residue and 3 look up types of VQ codebook, etc. I think to get all kinds of vorbis file with these configurations but what I have got from network only support some of the formats (Ex. floor1, residue 1 & 2, VQ lookup type0 & 1). I downloaded several freeware vorbis encoder

Hi, I have included the oggvorbis encoding and playback stuff in the Linux-Mandrake distro back in August 2000. At that time I put the "nightly CVS" version, which worked just fine. Then on Mon Nov 27 I noticed some RPM's labelled "1.0beta3" on the website so I upgraded with these ones. Since then we have had some serious problems in encoding: approx 20% of the WAV

I've been kind of busy lately, but I wanted to see what's up with ao after the build change. I was able to check out the vorbis module, but when I tried to check out the ao module I saw this: [stan@volsung vorbis]$ cvs -d:pserver:anoncvs@cvs.xiph.org:/usr/local/cvsroot co -r branch_postbeta2 ao cvs server: Updating ao cvs server: Updating ao/doc cvs server: Updating ao/include cvs