similar to: High CPU usage

Hi Jozsef, this approach sounds interesting. Do have you have some source code available ? Thanks Mark -----Original Message----- From: speex-dev-bounces at xiph.org [mailto:speex-dev-bounces at xiph.org] On Behalf Of Jozsef Vass Sent: Friday, September 25, 2009 11:43 PM To: mark_schilling at gmx.de Cc: speex-dev at xiph.org Subject: Re: [Speex-dev] High CPU usage I have run into the same

The link is http://www.adobe.com/devnet/rtmp/. TC Message stands for TinCan message. It is 11 bytes long, first byte is message type, three bytes of payload length four bytes of timestamp and three bytes of stream ID. The first byte of the payload for audio message is the format byte and the rest of the byte is the payload. Jozsef ----- Original Message ---- From: Jeff Ramin <jeff.ramin

Hi Mark, the documentation (section 3.2.1) states: "The single that will affect the CPU usage of Speex the most is whether it is compiled for floating point or fixed-point. [...] On the x86 architecture, floating-point is generally faster, but not always. " And: "Until the VBR feature is ported to fixed-point, you will also need to configure with ?disable-vbr or define

FLV contains TC messages? TC message payload contains a format byte and speex frames (up to eight). In the format byte 0xb0 indicates speex. Speex is always 16 kHz, 16 bit, mono. Jozsef Message: 1 Date: Mon, 16 Nov 2009 14:40:20 -0600 From: Jeff Ramin <jeff.ramin at singlewire.com> Subject: [Speex-dev] jspeex question To: speex-dev at xiph.org Message-ID: <4B01B8B4.8020904 at

Nicer way: void* speexState = speex_encoder_init(&speex_wb_mode); int speexFrameSize, speexRate; speex_encoder_ctl(speexState, SPEEX_GET_FRAME_SIZE, &speexFrameSize); speex_encoder_ctl(speexState, SPEEX_GET_SAMPLING_RATE, &speexRate); SpeexPreprocessState* speexPreprocessState = speex_preprocess_state_init(speexFrameSize, speexRate); Jozsef -----Original Message----- From: Max

First of all, Flash Player can only publish Speex at 16 kHz. 20 ms of audio (320 samples) will result in compressed payload size of 106 bytes (42.4 kbps). When Flash Player sends a TC message, there is 11 bytes TC message header and a single byte of audio message header. For more information, please see ActionScript 3 reference http://help.adobe.com/en_US/AS3LCR/Flash_10.0/ Jozsef

What are you trying to accomplish? My code sample was about how Flash Player microphone input in speex. If you want to do decode, please see speexdec.c Jozsef -----Original Message----- From: Max Lapshin [mailto:max.lapshin at gmail.com] Sent: Tuesday, March 30, 2010 8:53 AM To: Jozsef Vass Cc: speex-dev at xiph.org Subject: Re: [Speex-dev] Speex in flash player: how to work with? On Sat, Mar

Hi Mark, Code below: int16_t* samples; int16_t* fbSilenceFrame; void *fSpeexState; float eng(0.f); int speexFrameSize(0); speex_encoder_ctl(speexState, SPEEX_GET_FRAME_SIZE, &speexFrameSize); for (int i = 0; i < speexFrameSize; i++) { eng += samples[i] * samples[i]; } if (eng / speexFrameSize < 3.f) { memcpy(samples, silenceFrame, speexFrameSize * sizeof(int16_t)); } where

Hi Jean-Marc I am using speex in my voip app (wideband mode). I have noticed that when VAD kicks in, CPU considerably increases (bitrate decreases to 4 kbps). It takes about 7 ms to encode one frame versus 0.5 ms (for speech). This happens regardless preprocessor is used. Although the issue seems to be driver dependent, it occurs on XP, Vista and Mac OS X. Besides complexity and quality, this

Flash player encodes speex at 16 kHz, mono, 16 bit. Fields in the format byte should be ignored if the format is speex. You can set the quality by Microphone.encodeQuality (default 6). You can also set the number of speex frames per tc message using Microphone.framesPerPacket. Flash player can only decode speex at 16 kHz, so make sure you have the proper sample rate. Jozsef > > Message:

Thanks for the help folks, but I got this working a couple hours ago. =) I'm quite please after struggling with it for a few days. I just needed to take each audio tag from the FLV file and feed the contents of the tag (except for the first byte) to the jspeex decoder and write the results to a file. Jozsef - it is possible to specify 8KHz in the flash client and decode it as such. Speex

I can confirm that it will run in real time on iPhone if you compile with FIXED_POINT defined; it will also run in real time if you have FLOATING_POINT defined and disable 'Compile for Thumb' in the target's build settings in xcode. Wideband works too. Cheers, Dave

Hi All, Actually, the question is right on the topic. Is it possible to change the quality while encoding ? If the answer is yes, does the jitter buffer provides info about latency, e.g. : if latency is too high, we lower down the quality, if the latency is okay, we are raising the quality until latency rise up again... Thank you for your help. Morgan

Gents, In Version 8.1, QCONST16 is defined as follows in arch.h within the FLOATING_POINT section: #define QCONST16(x,bits) (x) However, in both celt.c and quant_bands.c, QCONST16 is referenced without a conditional FLOATING_POINT define. So when I compile as FIXED_POINT I get an "undefined identifier" for QCONST16. Am I doing something wrong? Thx, MikeH

Hey there, I'm having trouble getting speex working with a project that uses it. For some quick background, the game Quake 3 was GPL'ed a while ago. Some programmers decided to throw it into a public svn and improve on it, called it ioquake3. One of the blokes integrated speex into ioquake3 and it works, but I have troubles getting it to compile/link properly with Visual Studio 2005. I

Would it help if I scale the input wav data before encoding to spx? One interesting thing is if I encode the same wav file to spx(or decode the same spx file to wav ) on Windows platform, then there is no such big clicking noise, samething is true if I use floating_point speex library to encode/decode on WM2003. Problem happens only on WM2003 using FIXED_POINT library. Thanks Yanxin -----

Hi, I'm currently trying to use Speex on the iPhone but have some difficulties to get Speex compiled with XCode. Unfortunately I'm very new to XCode and it would be great if someone could give me a hint what the problem is. Here is what I did in detail: 1. Downloaded the Source Code speex-1.2rc1.tar.gz from www.speex.org 2. Start Xcode 3.1.4 3. File > New Project ... 4. iPhone OS

I am running speex 1.2beta1 on WM2003 using FIXED_POINT option, I got big clicking noise during encoding or decoding randomly, I got more noise if I spoke louder or made the MIC sensitivity higher, for example, when I encode the wav file to spx file, the original saved wav file does not have such noise, the noise is added only after it's converted to spx format. The floating point version of

Why don't you just try it? From what others have been reporting, it shouldn't take you long to get it running. You can use speexenc and speexdec for testing. On Nov 12, 2008, at 2:26, "Vincent Burel" <vincent.burel at vb-audio.com> wrote: > ok, thanks for these precision, and do you have some measure about > CPU load > ? > i really would like to get a

Hello, We upgraded one of our dovecot servers to debian stretch with dovecot 2.2.27 and since then one of our users has been experiencing random IMAP failures. We enabled raw logging at the server side and it shows normal IMAP commands/responses: 1507292522.222427 * 6 FETCH (FLAGS () BODYSTRUCTURE ("text" "plain" ("charset" "us-ascii") NIL NIL