similar to: code space / speed question

Displaying 20 results from an estimated 9000 matches similar to: "code space / speed question"

2009 Jun 20
2
Speex for TI MSP430 microcontroller - estimating CPU speed requirements?
Interested in building a speex codec (basically audio <-> speex <-> data stream) using TI's small MSP430 microcontroller. Is there any way to estimate feasibility based on CPU requirements? Example - speex is happily encoding on an old Pentium-1 processor (166 MHz) using about half the CPU (as reported under Linux); the TI microcontrollers are much slower yet (8-16-25 MHz) and
2004 Dec 20
2
Is there hardware to remote control
> From: Ronald Wiplinger <ronald@elmit.com> > Subject: [Asterisk-Users] Is there hardware to remote control > available? > To: Asterisk Users Mailing List - Non-Commercial Discussion > <asterisk-users@lists.digium.com> > Message-ID: <41C6D43F.5070201@elmit.com> > Content-Type: text/plain; charset=us-ascii; format=flowed > > I am looking for a
2012 Jul 23
2
Bug in my code (finding nonzero min)
Can someone verify for me if the for loop below is really calculating the nonzero min for each row of a matrix? I have a bug somewhere in the is section of code. My first guess is how I am find the the nonzero min of each row of my matrix. The overall idea is to make sure I am investing all of my money, i.e. new.set is a set of indicator variables for each stock for a particular portfolio, i.e.
2008 Jun 14
1
World Most Economical Predictive Dialer!
Hi Tilghman! &nbsp; &gt; Clearly, you missed the point.&nbsp; Since there is a FREE predictive dialer out &gt; there, and your product costs something, you are not the world's cheapest &gt; predictive dialer.&nbsp; I respect your wording and the way you or other people think on the list about difference between cheapest and free predictive dialer. &nbsp; Surely
2009 Jun 21
0
Speex for TI MSP430 microcontroller - estimating CPU speed requirements?
2009 Jun 22
0
Speex for TI MSP430 microcontroller - estimating CPU speed requirements?
2005 Nov 05
1
Ogg files versus Ogg streams
Hi all, I'm very new to Ogg, and am learning about it in an attempt to stream it from a CF card through a microcontroller. This particular setup requires me to move parts of the file from the CF card to the microcontroller buffer, effectively making the file like a data stream. Also, should this question be directed at the Tremor group instead since that is the codec I'm using? It
2003 Oct 14
5
Digium cards just for timing
Hi, I've found that neither Michael Manousos patch nor ztdummy driver do not fix musiconhold sound interruption problem up to acceptable quality level. Sound is choppy here anyway. It is my understanding (please correct me if I'm wrong) that if I have a Digium card in my asterisk machine, these problems should be gone 'cause those cards provide some reliable timing. So I have no
2008 Aug 05
2
TCP/IP block size
I don't know if this is a Samba question or an OS question. I'm working on an embedded project (microcontroller, limited RAM) that reads files from a FreeBSD/Samba (FreeNAS) box using TCP/IP transport on port 445. They're MP3 files so they're several MB at least. If I request 512 or 1024 bytes each time, I get 1024 bytes back from Samba every time. That's good. But, if I
2012 Mar 01
2
Another ? about Speex and CPU
Hello, I am interested to use Speex but need to know If I can use it under our project's constraint. We need to use a low cost micro controller on a very small PCB. This means there's no space for an external DSP unit. Can someone tell me if using an AVR32 (Atmel uc) which has a floating point calculation unit and DSP instruction set and running at ~50Mhz for a narrow band
2005 May 10
9
Hardware RAID Controller
Hi Everyone, Has anyone had any experience of using the Promise FastTrak SX4000 or SuperTrak SX6000 IDE RAID Controllers under Centos (if it matters I'm using version 4). I've seen it listed on linuxcompatible.org as working but would prefer to find out any first-hand experince before I buy. I'm looking to build a new mini server based on Mini-ITX and have found a great 1U case
2009 Jun 22
0
Speex for TI MSP430 microcontroller - estimating CPU speed requirements?
2007 Sep 07
4
[LLVMdev] New to LLVM, Help needed
Hi, I have started to write an llvm backend for one of our microcontrollers (PICxx). I started studying the framework of PowerPc backend of llvm and decided to start by following that framework. Now I have most of the classes and Tblgen files written for a very basic hypothetical microcontroller with very few instructions. The project builds and the llc recognizes the new processor, however,
2005 Feb 19
2
memory usage
Hi I am currently trying to port speex v1.1.6 to a microcontroller with very limited memory (<64Kbyte RAM). what I found when initialising the encoder, a chunk of 32Kb was attempted to be alloced, which failed: src/nb_celp.c: void *nb_encoder_init(const SpeexMode *m) { /* snip */ st = (EncState*)speex_alloc(sizeof(EncState)+8000*sizeof(spx_sig_t)); /* snip */ } same goes for the
2011 Oct 25
1
PWM vs. DAC output
I am using ST micro's STM32F103 chip with their AN2812 development code. It uses a PWM output, resulting in low-quality sound. Can I just use a scaled version of the PWM to drive a DAC? (i.e. is the output linear, or is there shaping to make the PWM output work?) Any feedback, links or pointers would be greatly appreciated. David. -------------- next part -------------- An HTML attachment
2007 Apr 20
1
Voicemail to Text Transcription(was: Re: [asterisk-dev] Voicemailto text translation)
(This subthread is more appropriate to -users than to -dev, so it is crossposted only to mark its transition. Please reply on the -user list only.) What are the cheapest prices for (humans) transcribing voicemail to text as a service? The absolute cheapest, regardless of (known) quality - the quality only has to compete with (cheaper) automated transcription, which is abysmal quality. On Wed,
2006 Nov 16
2
Speex WBB decoder on AT91SAM7S microcontroller?
Hi, I would like to compile the Speex fixed-point, WB decoder for an AT91SAM7S256 ARM7 microcontroller using gcc-arm-elf and was wondering, before I roll up my sleeves and try to figure out all the autoconf things that I'm really unfamiliar with, if anyone else has done this and can share their experiences. I see in the archives that some folk have compiled for this processor before but
2009 Dec 21
1
encoding time
On Mon, 21 Dec 2009 21:00:01 +0100, <speex-dev-request at xiph.org> wrote: > Thank you for your product Speex. We want to use it in > microcontroller AT91SAM7S256 (48 MHz). I'd strongly advice to use a higher performance micro. Let's consider that you'd succeed in getting it working right after optimizations. The time you want to add other speex features or other
2003 Oct 15
4
SIP Telephone Quality/Price
Hi! I am doing a research about the prices of SIP telephones. If someone can tell me which one are the cheapest and have an acceptable quality... it will be very kind. Best Regards, Mireia
2005 Apr 04
2
Speex split across processors?
I am interested in using Speex in an embedded system built around an ARM microcontroller. I have seen other posts indicating that Speex can run in real-time on some iPAQ PDA's, but these are using a StrongARM 166MHz processor. I'm looking more at the chips from Atmel (SAM7), Philips (LPC2xxx), and TI (TMS 470), which are ARM7TDMI with on-chip SRAM and flash, running at speeds of 33 to