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Hi i'm developing a sort of VoIP application for my ipaq using speex... I'm still at beginning and i have many problems encoding and decoding my wav files....output is only noise! Why? I'm using Libspeex 1.1.3, Embedded VisualC++ 3.0, Ipaq 3850(206 MHz Intel® Strong ARM 32-bit RISC Processor) PocketPC 2002 (Windows CE 3.0). Libspeex is complied with the definition of

Hi, I'm very sorry if those questions are repeated over and over, but I cannot find a solution on the net. I try to use speex to encode/decode voice to send over the network. My doubts are: 1. The Bits_Per_Sample I use, are independent from the speex encoding/decoding? (So...can I use 8, 16, 24..and so on?) 2. If I have this situation: SAMPLE RATE.....: 8000 BITS PER SAMPLE.: 16

Look, how about you start from the testresample.c file? Oh, and you seem to be reading 320 samples at a time and processing 640, so that can't be good (and even beyond that your code is wrong for other reasons). Jean-Marc On 11/6/19 1:56 AM, zhouyuchen at iauto.com wrote: > Hello, > I printed the log, in/out len is not truncated, which means that the > input and output are not

Well, you seem to be using FRAME_SIZE but only defining frame_size. Otherwise, the code looks OK, but it's always hard to tell. I suggest you start from speexenc/speexdec or from the example I wrote in the manual at: http://www.speex.org/manual/node12.html Jean-Marc Le ven 19/12/2003 à 05:22, Fabio a écrit : > Hi > i'm developing a sort of VoIP application > for my

Hi all, First of all, thanks to Speex developper for the all the job. I am trying to implement my own Speex DirectShow fitlers for VoIP following the documentation and sample code's. I am facing audio glitches when encoding - decoding PCM data. The encoder and decoder procedures are copied below. What about the lookahead size ? how shouw we apply it in encoding stage ? thanks in advance

Il 14/04/2010 14:37, Randy Yates wrote: > > Usually a buffer is one frame of data, and a frame is 20 milliseconds. > Since the sample rate is typically 8 kHz in narrowband mode, this > corresponds to a buffer size of 160 samples. Hi Randy, thanks for the reply. So, suppose I encode an audio buffer (8000 kHz, MONO, float) of 640 PCM frames. In output I have 4 speex frame of 20 byte

Hello, I know my question has been asked before because I spent the last week searching the web for how to use Speex in combination with WaveIn/WaveOut and I ran into a few posts, but none of them answer the question. There is still a lot of confusion how to use WaveIn/WaveOut and Speex by junior developers such as myself. Even after examining code for SpeexDec and SpeexEnc, I cannot get clear

Be aware that inlen is an in/out parameter. It tells you how many samples the resampler read. That number can be smaller than what you passed -- in which case it means you need to buffer them and give them to the resampler again in the next call. Jean-Marc On 11/5/19 8:27 AM, zhouyuchen at iauto.com wrote: > Hello, > I have encountered some problems. I want to use speex to convert the

Hello all, Another johnny-come-lately courtesy of the Slashdot effect... I have taken a moment to browse the archives, so I'm not asking "Why doesn't the cmdline utility compile?" yet again. I have been doing some fiddling with it and found a few thinkos to fix, but some of the more esoteric getopt() things are stumping me. Ferinstance, it seems that <

Thank you for such a quick response. The only reason I started with Char buffers is because WaveIn and WaveOut on Windows XP accept/emit WAVEHDR structures, which store audio data in LPSTR, which is Char*. typedef struct { LPSTR lpData; DWORD dwBufferLength; ... } WAVEHDR; When I was going from Char to float and back looked very wrong to me as well, but I was just not

I've cross-compiled flac for the armv4l processor (rio receiver), and i'm trying to start up a decode thread : #include <FLAC/stream_decoder.h> .... FLAC__StreamDecoder *flac = NULL; flac = FLAC__stream_decoder_new(); if (flac == NULL) { printf("[DECODE] Unable to initalize flac object\n");

Thanks for that email. The one lihe change I made is this : from #define FLAC__MAX_RICE_PARTITION_ORDER (15u) to #define FLAC__MAX_RICE_PARTITION_ORDER (6u) and that seemed to make decoder_new() happy, but it's promptly crashing after making a call to the read callback (below), then to the meta callback. The meta callback did nothing but print a string and return. I removed it, and

I'm not sure what input/output format you're trying to use, but it looks wrong. You're using the float functions that take +-32767 values and you're feeding (or converting) chars. Unless your machine has very special chars (which I doubt), a +-32767 value just isn't going to fit in. This has nothing to do with Speex BTW, it's just handling the audio data properly.

Hi, in a VoIP application, the endpoint A send speex payload to B. B doesn't know how A acquire audio, it only know that the channel is narrowband so, how can B know the size of the output buffer to pass to the speex_decode()? Thanks, Daniele.

On 14 April 2010 23:50, Daniele Barzotti <daniele.barzotti at eurocomtel.com> wrote: > Il 14/04/2010 14:37, Randy Yates wrote: >> >> Usually a buffer is one frame of data, and a frame is 20 milliseconds. >> Since the sample rate is typically 8 kHz in narrowband mode, this >> corresponds to a buffer size of 160 samples. > > Hi Randy, thanks for the reply. >

> When I was going from Char to float and back looked very wrong to me it not only *looked* wrong! > as well, but I was just not sure (and still am) how to translate the > Char* audio stream generated by WaveIn to a format that can be > understood by Speex. Would using speex_decode_int and > speex_encode_int instead of speex_decode and speex_encode be the > answer? Using

Begin forwarded message: Date: Mon, 5 Nov 2007 07:27:21 -0500 From: "Evgueni Tsygankov" <eugenet@rusmex.com> To: "Jean-Marc Valin" <jean-marc.valin@usherbrooke.ca> Cc: speex-dev@xiph.org Subject: RE: [Speex-dev] WaveIn/WaveOut and Speex Again, thank you for helping me. I know this might seem like a trivial matter to you and other experts in the field, but believe

Again, thank you for helping me. I know this might seem like a trivial matter to you and other experts in the field, but believe me, there are a lot of programmers, whose posts I saw on the web, who tried to use WaveIn/WaveOut and Speex and failed. As I understand it, WaveIn just buffers audio data according to the bit rate specified. So, if we use waveFormat.wBitsPerSample = 8, then each Char of

[cc'd to vorbis and gstreamer-devel because I thought both lists would like to see this ] > I'm curious if anyone else is at all fed up with the current > state-of-affairs of media support under *IX. As things stand it's rather [...] Hi, Caught your post on vorbis-dev, but I'm not on vorbis, where Monty suggested this go, so email me directly with any replies.

Am Dienstag, 19. Mai 2009 schrieb Volker Lendecke: > On Tue, May 19, 2009 at 02:26:25PM -0500, Christopher R. Hertel wrote: > > >From your description, it seems that there is a lot going on. > > > > Unfortunately, I don't personally know nearly enough about the OS/2 > > implementation of SMB. I know that there is a good deal of documentation, > > and from