similar to: Speex on DSPic, violation of license?

farhan@phonestack.com wrote: > I was browsing through Microchips' website and came upon their Speex > library. They are charging for it and looks like it is also not open > source. > http://www.embeddedstar.com/press/content/2005/6/embedded18391.html > scroll down to the paragraph about pricing. I'm aware of Microchip's closed-source port of Speex to the dsPIC. As far

On 10/1/07, Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > I'm aware of Microchip's closed-source port of Speex to the dsPIC. As > far as I know (haven't checked the details), this is perfectly legal, > even though I think it's a dumb decision for a company that's in the > business of selling chips. I say it's dumb because by not contributing

All, I don't know if this is widely known, but it appears that Microchip has just released a library to perform speex compression/decompression on a dsPIC processor. The library is available under their license, so I can only assume that it is a reimplementation of the algo and not a port. Does anyone know otherwise? Cheers, David

The whole deal of using the new BSD license for libraries like Speex's is to allow companies to release commercial source-closed applications/devices. This to allow wider spread of the formats. Unless they are using the command line tools (e.g. encoder), which are not under BSD but LGPL. In that case, they should provide the source code for all changes they make to the command line tool,

Hmmm.... it's a shame.... what are the minimum requirements for Fixed Point Speex? John Villar Gerente de Proyectos Computadores Flor Hard Soft 2058 C.A. www.florhard.com Alain wrote: > Hi, no chance to run it on anything from Microchip, theyr best > processor is 16 Mips 8 bits only. For what I have been readind on this > list for more than a year you need a lot more than

Hi, I am running speex wideband for speech. While doing that I am getting Hissing sound during silence. If you want I can give you input and output files. Thanks, Shridhar -----Original Message----- From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On Behalf Of speex-dev-request@xiph.org Sent: Tuesday, October 09, 2007 12:30 AM To: speex-dev@xiph.org Subject: Speex-dev

I have been analyzing the implementation for some backend (PIC16, MIPS, SPARC and MSP430) my main problem is that they are so much different, I mean obviously they are describing different architectures, but the file structure is not the same. So it is difficult to get a pattern. I have checked the available documentation files, also the video from Cardoso about how to write a backend for the

Hi I was wondering if someone may help. We are currently using a DSPic to store speex data on a Smart Card. We have now decided to use a PC to playback the speex data. The only problem is our data does not have the Correct header. Do you know if there is an example in C++ that can take a string of speex frames and construct the correct Header so that it can be played back using a pc based

Hello! I'm new to the list, so first I'd like to say hi to everybody! Is there somebody interested in helping with porting Speex on dsPIC series of Microchip's microcontrollers? I was looking at 30F6014A with 144 kB of flash and 8 kB of ram, fixed point DSP core and capable of 30 MIPS. If only one narrowband rate was selected and everything unnecessary stripped down, perhaps it could

Hi Roberto, The PIC24 family of devices share very little commonality with PIC16 beyond the naming convention. They're a register-based 16-bit architecture, unlike the PIC16. That said, that does mean that LLVM is a much more reasonable fit to target the PIC24 (and dsPIC) than it is for PIC16. Modeling your target files after the MSP430 or Blackfin backend is likely your best bet to get up

HA! Just when I was getting ready to drop myself from this list, along comes a ham radio question! Shoving digital voice down a 100 Hz pipe would be mighty darned tough/impossible. N0YMV has a good suggestion. Try those WSJT modes. They use narrow bandwidth and are fun to play with. There are documented instances where moon-bounce QSOs have been completed with these modes. No, it's

Hi, I think this is a very ashamed question I have modified the version of the MSP430, after many problems it compiled, now I want to see is the changes generate what I want, but I don't know how for example with llc -march msp430 foo.ll -o newfoo.ll generates a file for the msp430 and actually did it. but I want to load my changes the --load option is supposed to do that, but the only new

Isn't this the same problem described starting at the bottom of this page? http://www.embeddedstar.com/articles/2003/7/article20030720-11.html Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> wrote: > > > As it says in 5.4.1 of the good book "Using a different soundcard to do > > the capture and playback will *not* work, regardless of what you may > > think.

Hi, As a way to learn LLVM, I'm trying to write a backend for the Microchip PIC18 8-bit microcontroller. On this device, the hardware stack is very small and is used only for storing function return addresses. A "real" software stack implementation is not very efficient because of the limited instruction set, so for all the non-reentrant functions I've decided to use a similar

Hi, The AVRDevice.td of the AVR target seems too old, some devices like at90s have already been End-Of-Live, and some devices such as AVR DA family are not included. It is possible to make this TD file follow current microchips device list definition ? I am glad to take this work. 1. remove EOL devices 2. add new production devices Ben -------------- next part -------------- An HTML

On 1/17/08, Rafael <daconfama@gmail.com> wrote: > Have anyone works with speex in full duplex mode? To my knowledge, one can't really work with VoIP without full duplex, and Speex is used quite often for VoIP, so I'll say that people do use Speex in full duplex mode. > I?ll probably change the dspic for a ARM LPC22XX, this is a good idea? Only someone who has had experience

Dear Sirs, I would be interested to hear your views on whether SPEEX could be made to run fast on a DSPIC33 by the following strategy: Make iir_mem16() (for example) purely 16 bit by restricting the number of bits in the signal to say 10 using SATURATE and then making the LPC co-efficients just 6 bits. At present (with standard code) the encode function is taking about 140ms which is seven

Hello, I try to use Microchips MPLAB IDE 7.22 with wine 0.9.3 in contrary to the AppDB it doesn't work, it hangs during the first splash screen. When I try it with WINEDEBUG=warn+all the last message I get is: warn:gdi:GDI_GetObjPtr Invalid handle 0x62c I already registered all the .dlls as advised in the AppDB and also installed a gdi32.dll. Does anybody has an idea? Thanks, Dirk

Dear Sir, Could you please forward this e-mail to your engineering department. I am a ham radio person who wants to transmit from the Earth to the moon and back to the Earth by phone not by Morris code. This will be a very weak signal. I need an extra 13.8 dB of gain. Could you please help me distribute the attached paper to someone who could take this project into the next level? Please reply

Hi, I'm still trying to implement speex AEC into my VOIP project and I have some problrm with MDF filter response. I have plots of ref(near-end), y(filter response) signals and from plots I obtain that filter response is to small so when i substruct it from ref signal there is no efect. Is there any way to make filter giving response about ref signal amplitude? /Przemek Stajniak.