similar to: Another newbie question on encoding

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

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. >

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Il 15/04/2010 01:30, Conrad Parker wrote: > >> But how can I know the size of each speex frame into a multiframe payload? > > use speex_bit_read_from() just once on the packet, then call > speex_decode() once for each frame. > > Conrad. Thanks for the reply, Conrad. What is not clear for me (and I didn't found it on the

Hi Alls Sorry for my newbe question I want to decode a speex multi frame stream I got 38 bytes packets and make 800 bytes buffer this is my simple code CSpeexCodec::CSpeexCodec(void) { // speex_bits_init(&m_speexBitsOut); m_pSpeexEncStateOut = speex_encoder_init(&speex_nb_mode); int nEhc=1; int nSamplePerSec = SAMPLES_PER_SEC; static int nQuality = 8;

On 15 April 2010 17:55, Daniele Barzotti <daniele.barzotti at eurocomtel.com> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Il 15/04/2010 01:30, Conrad Parker wrote: >> >>> But how can I know the size of each speex frame into a multiframe payload? >> >> use speex_bit_read_from() just once on the packet, then call >> speex_decode()

On Sun, 2005-04-10 at 19:47 -0500, Chris Lattner wrote: > On Mon, 11 Apr 2005, Paul wrote: > > I'm trying to pass an array pointer to my run-time generated module, and > > after a long time of searching for the answer, the only thing I got was > > a headache. Basically I have a few arrays (few megabytes which will > > sometimes be accessed as 8 / 16 / 32 / 64 bit

On Mon, 11 Apr 2005, dummy1 at boxpl.com wrote: >> There are many possible ways to do this, can you be a bit more specific >> about what you're trying to do? > Here is a basic example: Ah, ok, I see what you're trying to do. Below is some *pseudo* code for the basic idea: > ============================================ > unsigned int buff[4096]; > > int main

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

In R's sprintf() if any of the arguments has length 0 the function aborts. E.g., > sprintf("%d", integer(0)) Error in sprintf("%d", integer(0)) : zero-length argument > sprintf(character(), integer(0)) Error in sprintf(character(), integer(0)) : 'fmt' is not a non-empty character vector This comes up in code like x[nchar(x)==0] <-

On Mon, 11 Apr 2005, Paul wrote: > I'm trying to pass an array pointer to my run-time generated module, and > after a long time of searching for the answer, the only thing I got was > a headache. Basically I have a few arrays (few megabytes which will > sometimes be accessed as 8 / 16 / 32 / 64 bit binary / fp values), that > will be modified by both the generated module, and my

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

I'm trying to pass an array pointer to my run-time generated module, and after a long time of searching for the answer, the only thing I got was a headache. Basically I have a few arrays (few megabytes which will sometimes be accessed as 8 / 16 / 32 / 64 bit binary / fp values), that will be modified by both the generated module, and my main c program, so I would like to put those into global