| Search found 153 matches on edaboard.com: audio codec audio codec codec video voice and codec audio processors |
interfacing bluetooth usb dongle with microcontroller
do anyone know how to interface bluetooth usb dongle(which is easily available for pc) with microcontrollers?coz these dongles r easily available n cheaper than bluetooth module so if its possible to interface with ucs than it becomes cheaper bluetoo...
Microcontrollers :: 05 Nov 2009 7:25 :: dannym :: Replies: 115 :: Views: 24990
sim300cz audio interface
pins of both modules, i.e, mic to speaker and vice versa. but, im not sure about the voltage level compatibility between these pins.when i read sim300czs datasheet, i get little confused. i read the audio interface section, re......
Microcontrollers :: 02 Oct 2009 8:52 :: lanovan :: Replies: 3 :: Views: 189
audio programming, but sound not out . please help me.
my program#include <math.h>#include <stdio.h>#include <stdlib.h>#include dsk6713_aic23.h //codec-dsk support fileuint32 fs=dsk6713_aic23_freq_8khz; //set sampling rate#define bit_per_sample 16int input_dec;int m=5, n=31, k=16, t...
Digital Signal Processing :: 22 Sep 2009 8:54 :: ezyneab :: Replies: 0 :: Views: 135
h.264 decoder
hi,i am going to design a low power h.264 decoder.can anyone share any experience in video codec design or share me some information about h.264?thanks in advance!...
ASIC Design Methodologies & Tools (Digital) :: 19 Sep 2009 8:51 :: cihchenlin :: Replies: 36 :: Views: 5943
any one designed pcb using blackfin532 ,lan,ethernet etc ?
hi pcb friends,what are the guideline we have to implement in this pcb.in this board i used blackfin532 ic 176ptqfp, sdram,flash,ethernet controller ,audio codec,usb host ,magnetics,lan and some more pheripherals.i planned to do in 6 layer can any on...
PCB Routing & Schematic Layout software & Simulation :: 10 Sep 2009 5:51 :: dmd4raj :: Replies: 2 :: Views: 225
digitally programmable audio tone generator chip
e generator ics out there? it would have a digital interface to a microcontroller (e.g. i2c). through this interface the controller could set a tone and volume. the output would go to a fixed-gain audio amp and then to a speaker, or may be the ton...
Microcontrollers :: 30 Aug 2009 10:29 :: FvM :: Replies: 4 :: Views: 375
question regarding audio codec chips
an audio codec chip (wm9731l by wolfson) have pin outs:1. spkr2. spkl3. out 34. out 45. gnd what is the difference between the spkl/r pin and out 3/4 pin? does it mean that i need a speaker with 3 terminals (for spkl/r, out3/4 and gnd)? can someone...
Professional Hardware and Electronics Design :: 26 Aug 2009 7:50 :: howie :: Replies: 0 :: Views: 105
bluetooth interface circuit
hi folksi need to interface bluetooth to a microcontroller circuit..please help me!...
Hobby Circuits and Small Projects Problems :: 24 Aug 2009 16:12 :: requiem_mortis :: Replies: 29 :: Views: 4994
pcie or pci based audio or video accelerator
hi all, can anybody tell me vendor name or chip for pcie / pci based audio / video accelerator.or gpio based audio codec chip....its urgent.....thanking you....
Embedded Systems and Real-Time OS :: 20 Aug 2009 11:17 :: amitjagtap :: Replies: 0 :: Views: 156
codac
hi to allmaterial required for codac tech...popatlal...
Embedded Systems and Real-Time OS :: 17 Jul 2009 10:08 :: N_Arm :: Replies: 3 :: Views: 336
de2 , adc , dac
hello everyone i have to use adc and dac for my design . does anyone know that altera de2 board has analog to digita converter and also digital to analog converter ????...
PLD, SPLD, GAL, CPLD, FPGA Design :: 15 Jul 2009 8:00 :: FvM :: Replies: 1 :: Views: 168
is it possible to play an audio file with a gsm modem
hi all,i am doing a gsm project for my third year, and i am clueless where to begin. please advice me. the requirements are:a microcontroller (8051) receives a signal from a door sensor. whenever the signal is received (i.e. door opened), the microco...
Microcontrollers :: 22 Jun 2009 12:49 :: techieno1 :: Replies: 1 :: Views: 84
audio input for c6713
hi, can someone please send me a simple program for tms320c6713 in which i can speak in a mic connected to mic in, record it in a buffer and output it through line out? a timely help will be greatly appreciated. rulph chassaing book examples dont w...
Digital Signal Processing :: 19 Jun 2009 21:37 :: imrangemini :: Replies: 5 :: Views: 462
problem with controlling sigma-delta adc..
ore and people were very helpful, and knowlegable :d .first of all, im sorry if this is the wrong place to post this, but it is to do with digital interface.basically, ive created a wireless digital audio system, using plds, i havent started the wir...
Digital Signal Processing :: 17 Jun 2009 4:16 :: sun_yah :: Replies: 1 :: Views: 450
wm9713 audio codec - noise in bluetooth audio
hello all,i am using wm9713 audio codec in my project. audio is transferred to bluetooth module(btm) using pcm link. the pcm link operates at a freq of 8khz sampling rate.pcm data to btm is directly transferred from a sigma delta adc.at adc sampling ...
Digital Signal Processing :: 17 Jun 2009 4:02 :: sun_yah :: Replies: 0 :: Views: 147
what next with this audio codec project? thank you!!!
we are working on an audio codec project with very limited experiences. so far we have implemented the algo in matlab and ported it as a vs 2005 float-point version. we need to figure out what to do next.all we know is a fixed-point chip would be ade...
Digital Signal Processing :: 27 May 2009 9:17 :: xie.qiang :: Replies: 1 :: Views: 171
question.. will the 8-bit dac produce good quality sound ?
hi all , i asked many questions last 2 days about making audio or wav player and im still in the analysis phase.i have now one clear question will determine the technique to use in generating sound from microcontroller (dac or pwm) .i got that using ...
Microcontrollers :: 21 Apr 2009 11:30 :: drdigital :: Replies: 7 :: Views: 819
pwm for generating sound ??
hi all,im on my way to make an audio player.my platform is 8051 but i think it will not fit my requirements for ram buffers or integrated required peripherals so i could move to avr. i have no experience about pwm so im asking about somt things ...1-...
Hobby Circuits and Small Projects Problems :: 21 Apr 2009 0:53 :: srikanthsamaga :: Replies: 9 :: Views: 1407
any embedded system company in egypt?
hi, does any body know any company in egypt that work in the field of embedded systems?...
EDA Jobs, Promotions, Advertising :: 07 Apr 2009 11:51 :: Ahmed Samieh :: Replies: 30 :: Views: 6027
info about pdm + lc filter for audio low-cost solution
hi,does anyone is aware about the possibility to implement an audio low-cost solution by means of a simple pulse-density modulation (pdm) followed by a lc pass band filter (it could even be implemented by the loudspeaker itself)?i am interested in av...
Digital Signal Processing :: 18 Feb 2009 21:26 :: McShamrock :: Replies: 0 :: Views: 105
suggestions for an fpga development board purchase.
i want to buy some low cos fpga starter kit i am new to fpga wanted to have the kit so that i can learn the basic of the fpga desiging what will be good cyclone ii fpga starter development kitor xilinx spartan-3e fpgai will be gladfull if i get info...
PLD, SPLD, GAL, CPLD, FPGA Design :: 31 Jan 2009 12:44 :: kvingle :: Replies: 11 :: Views: 1728
audio problem in ubuntu
hi to everyonerecently i have installed the ubuntu 8.06 n when i tried to play the music it couldnot. it display the message. what should i do sothat i can play the music????...
Linux Software :: 22 Dec 2008 7:42 :: paragkalra :: Replies: 5 :: Views: 309
help regarding real time application on tms320c6713
hi,i am doing my project that is related to cancelling noise in a real-time enviornment.for this i want to give input through mic in and want to see my headphone output on cro.plz help as soon as possible.thanking u in advance....
Digital Signal Processing :: 02 Dec 2008 7:25 :: arti.iisc :: Replies: 1 :: Views: 276
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difference between voip and voice chat over internet
dear all,i want to know that what is the basic technical difference between voip and the voice used in different messengers.regards,kashif saleem mirza:d...
Network :: 03 Nov 2008 11:50 :: III :: Replies: 12 :: Views: 1239
[poll] program your fpga?
i was wondering what you guys use to program your fpgas?i am self experimenting with some of the routes to program an fpga....
PLD, SPLD, GAL, CPLD, FPGA Design :: 22 Oct 2008 16:00 :: Zerox100 :: Replies: 51 :: Views: 4128
audio input on dsp kit
i have a dsp kit , that has c5416 processor, one audio inone line inone audio outone line outi want to find out, if i connect a microphone to the audio in, how do i get the data in my program,i am programming in c language on code composer studio 3.1...
Digital Signal Processing :: 09 Sep 2008 11:09 :: ATEEQ UR REHMAN :: Replies: 3 :: Views: 366
embedded software engineering job (salt lake city, usa)
company designing leading-edge pda seeks hardware engineer with experience in pcb layout and electronic design. experience with surface mount assembly and hardware/software interfaces desired.company designing leading-edge pda seeks software engineer...
EDA Jobs, Promotions, Advertising :: 02 Sep 2008 2:00 :: PDAjob :: Replies: 1 :: Views: 357
post some interview questions and answers
hey guys,i am an exp dsp engineer working on audio codecs, i am planning for a change and i want to know what kind of questions do i get in interviews. this is the first job i am lokking outside after i joined here as fresher, so i do not have any id...
Digital Signal Processing :: 23 Jun 2008 12:51 :: xulfee :: Replies: 3 :: Views: 372
digitize and save voice
i want to transmit voice using microphone to fpga and then capture it i.e. digitize it and save it. please tell me how can i do it. im using xsb300e board with built in audio codec (ak4565). its urgent. if code is available on any site either in veri...
PLD, SPLD, GAL, CPLD, FPGA Design :: 09 Jun 2008 19:54 :: jiw :: Replies: 2 :: Views: 141
audio fft analyzer
hi guys,i am currently in the project of audio anlyzer, but i got some problem of audia fft,say, i have the raw audio information without any codec from adc through iis interface and then, i need to anlyzer the audio quality such thd, witch is realiz...
Digital Signal Processing :: 12 May 2008 15:33 :: FvM :: Replies: 1 :: Views: 222
dds using altera de 2 board
can anyone help me out.... i am using vhdl for 8-bit dds, its giving output in signal tap logic analyzer..my problem is how to use the dac present in audio codec of the board so that i can see the o/p on the cro... also can i use vga dac present o...
PLD, SPLD, GAL, CPLD, FPGA Design :: 12 Apr 2008 3:34 :: patkar :: Replies: 0 :: Views: 201
mixed signals circuit - layout advices needed
hi all,i am laying out a mixed signals circuit like audio codec so i am asking the circuit and layout experts to advice me what are the considerations i must take.thanks in advance.......
Analog Circuit Design :: 02 Apr 2008 14:57 :: test_123 :: Replies: 3 :: Views: 171
how to read\write data using asynchronous clk?
hi friends!, i have an issue where my codec sends and receives data at 2mhz sclk(codec internal) clk.it acts as master and hence the sclk@2mhz isnt controllable by external means. ill explain in steps.1) i read\write codec @2mhz sclk(codec clk,master...
PLD, SPLD, GAL, CPLD, FPGA Design :: 02 Apr 2008 12:00 :: xtcx :: Replies: 9 :: Views: 423
audio codec layout considerations
hi guys,can someone give me some layout considerations or techniques when designing audio codec? tnx :d...
Analog IC Design & Layout :: 01 Apr 2008 8:05 :: electronXwork :: Replies: 2 :: Views: 117
regarding 6713 program
hi alli have a problem in dsk 6713.have a look on the following code//detect_play.c//include appropriate support files#includedetectcfg.h#includedsk6713.h#includedsk6713_aic23.h#include slevel.h#define buffer_length 80000#pragma data_section(buffer,....
Digital Signal Processing :: 07 Mar 2008 11:48 :: arti.iisc :: Replies: 0 :: Views: 261
audio in fpga...
i have de2 board with cyclone 2 o play fpga and having audio codec chip wolfens ..i need to play my design audio (for ex audio files..wav..how i can go head........
PLD, SPLD, GAL, CPLD, FPGA Design :: 05 Mar 2008 14:46 :: toram16 :: Replies: 0 :: Views: 114
how to convert sinewave to sqr wave from adc samples?
hi friends!, i need to convert the sine wave of a constant or variable frequency usually at the order of few mhz into a square wave so that i can process the frequency information in that square wave very easily.my config isadc of 12-bit which gives ...
PLD, SPLD, GAL, CPLD, FPGA Design :: 15 Feb 2008 6:51 :: xtcx :: Replies: 12 :: Views: 538
doubt regarding deriving clock for adc from fpga kit.
dear frnds,myself doing project on real-time spectrum analyzer using fpga. during the process, we are planning to use speech signal inputted through microphone.i need an adc and fpga (used for implementing frequency transformation.) we are planning t...
PLD, SPLD, GAL, CPLD, FPGA Design :: 11 Feb 2008 23:29 :: echo47 :: Replies: 13 :: Views: 1431
how to select marker for data transmission?.
pga however while transmitting data stream @ 2mhz from tx to rx, due to broadcast nature of the tx unit, the reciever unit fails to sync with the tx without a proper sync pulse\data. so if i transmit audio from codec in tx, im recieving all msb-ls......
Digital communication :: 08 Feb 2008 6:22 :: xtcx :: Replies: 4 :: Views: 167
voice logger circuits needed
hello all,im looking for microcontroller(pic prefered) based circuit for logging voice aand call data(dtmf tones,hook status) of three telephone lines. i plan to dump the data directly into a pc using serial or usb port. can anyone suggest me the rig...
Microcontrollers :: 05 Feb 2008 12:58 :: vijayababu_pec :: Replies: 8 :: Views: 1566
mp3 codec
whats the simplest mp3 codec?...
Digital Signal Processing :: 25 Jan 2008 23:24 :: Drago :: Replies: 11 :: Views: 1456
speech compresion code
hi there im new here i just want to say hi to u all.im working on speech compresion using celp code(code excited linear predictive coding). by matlab,so plz if any one knows about this subject i will be thankful...
Digital Signal Processing :: 14 Jan 2008 5:03 :: ahmedseu :: Replies: 20 :: Views: 2247
best audio format for mobile phone?
hi all, i want to know is there any format better than mp3 for audio files in mobile phones considering the limitation of memory and power in mobile devices.if there is any , please give the details about the format.regardswajahat...
Digital Signal Processing :: 09 Jan 2008 8:10 :: cydi :: Replies: 2 :: Views: 228
beginner in audio codec
hi..i m very beginner to learn audio codec..will u all plz tell me where to start?? any intoductory book.. link,presentation etc. based on audio codecs??...
Digital Signal Processing :: 01 Jan 2008 10:01 :: wolly :: Replies: 2 :: Views: 181
any good sdm dac document ?
dear all : i will design above 100db dac for audio codec , does anyone have good document ?...
Analog IC Design & Layout :: 01 Jan 2008 9:06 :: caosl :: Replies: 1 :: Views: 159
matlab programming for speech processing(voip)
hello everyone....can anyone please help me out in.....how to do the matlab code for speech processing (i.e)...voice over ip (voip) using different audio codecs such as g.711, g.729,speex etc. can u just tell me how to use the codec by taking a input...
Digital communication :: 17 Dec 2007 12:32 :: spa_123 :: Replies: 4 :: Views: 1230
spi interface
hi all,i am using several devices (adc, dac and sram) which all use the spi interface. now i know i can connect these devices to my fpga and have the devices all run as slaves and one master(fpga). howeverfrom doing some background reading i have not...
PLD, SPLD, GAL, CPLD, FPGA Design :: 10 Dec 2007 2:02 :: alzomor :: Replies: 3 :: Views: 426
usb audio codec with s/pdif
http://www.skyelectro.com/projects/usb_a-c-s-p.html...
Microcontrollers :: 24 Aug 2007 16:48 :: PaulHolland :: Replies: 1 :: Views: 105
development & design eng. position available in m'sia
dear all,our cleint, key asic is a leading fabless ic design company that designs and manufactures ic for electronics or system companies based in us, california. the companys primary technology offering is the keysoc(tm) platform for asic/soc design...
EDA Jobs, Promotions, Advertising :: 24 Aug 2007 9:50 :: kcutnnuy :: Replies: 0 :: Views: 792
can anyone share the driver of audio for arm system?
i am using arm processor s3c2440 with wm8750l audio codec.does anyone has experience on this codec??...
Embedded Systems and Real-Time OS :: 20 Aug 2007 10:23 :: choi_new :: Replies: 0 :: Views: 159
need of voice sensor ic
guys ,i need the voice sensor ic for interfacing to my project. i need the voice recongisation ic . i need to get the voice from particular person and if the voice is correct it has to certain operation. so can i have the voice ic and datasheet for t...
Hobby Circuits and Small Projects Problems :: 19 Aug 2007 13:39 :: vandelay :: Replies: 3 :: Views: 933
question about internet radio on embedded system
ends,i am doing a embedded system with arm processor, the product will including the function of internet radio. the user can listen internet radio though my product.however, there are many format of audio codec, such as: wma2, wma9, ogg, aac, mpga.....
Embedded Systems and Real-Time OS :: 25 Jul 2007 4:38 :: choi_new :: Replies: 2 :: Views: 210
setting sampling rates of an adc
hi,how does a designer (manufacturer) calibrate, set, arrange sampling rates of an adc?how does a user change its sampling frequency? added after 1 minutes: i have been using c6713 dsp starter kit. various sampling rates can be choosen. also everybod...
ASIC Design Methodologies & Tools (Digital) :: 15 Jun 2007 7:50 :: RegUser_2 :: Replies: 9 :: Views: 750
regarding the embeded softwares!!!!!!!!!!!!
hi friends,guys can any body please clear me for the following:1.in general any product design is the combination of software+hardware? if so can any body please clear me what is the role of software-drivers-osin the real time senario.2.it wil...
Embedded Systems and Real-Time OS :: 07 Jun 2007 10:56 :: kotta :: Replies: 2 :: Views: 162
how to send digital data via vhf fm transmitter?
haii have to send digital data (a gps string ) from one point to another through vhf transmition. how to do that ?i have mic input of a vhf transceiver (144mhz fm) at one end and a receiver at other side?dtmf or modem ? how ? suggessions pleasepicstu...
Microcontrollers :: 14 May 2007 11:40 :: zahidkhan :: Replies: 11 :: Views: 1437
any one worked with wolfson audio codec wm9712 ???
^ subject ^ !!!...
Professional Hardware and Electronics Design :: 14 May 2007 7:44 :: cameo_2007 :: Replies: 0 :: Views: 342
speech codec info
hey guyzi want etsi papers for gsm speech codecthanx...
Digital communication :: 25 Mar 2007 0:29 :: Yasser A.Nour :: Replies: 4 :: Views: 540
research top for wireless audio chip
hi alli want to do research on wireless audio for ic design.my purpose is to integrate wireless transceiver and audio codecinside a single chip. however, i dont know if this is a good approachor good. can anyone propose topics to me?...
Analog IC Design & Layout :: 09 Mar 2007 13:26 :: hung_wai_ming@hotmail.com :: Replies: 0 :: Views: 84
audio broadcasting(
anybody knows how to make use of the udp(user datagram protocol) in c++ language..we are trying to a create a softwafe on a public address system using c++ or aany easier language for impalementaion of the said system..thank you in advance.....some...
PC Programming and Interfacing :: 06 Mar 2007 9:53 :: leoren_tm :: Replies: 18 :: Views: 951
video editting problems !!
hi alli recorded some programs from cable using pixel view capture card.when i try to edit it to extract audio from selected place i get error. i.e. described according to programs used.blaze media prowhen i select the video b/w two times and try to ...
Software Problems, Hints and Reviews :: 12 Feb 2007 5:52 :: matrix1 :: Replies: 0 :: Views: 63
about noise cancellation
hi guys: now i am designing an opamp in continuous time which requires a snr>=90db using the smic .13 process(seems poor process).as the vp_p of the input signal is 1v,to achieve the snr specification,i need to control the equivalent output noi...
Analog IC Design & Layout :: 11 Feb 2007 0:00 :: betty1007 :: Replies: 6 :: Views: 294
mpeg4/h264 + audio codec
is there any standard to define stream format for video+audio? video coding in mpeg4/h264 audio coding in mpeg4/mpeg2/mpeg1 or wma9can you recommend some ips that can process a+v stream?any standard spec. for stream format . such as mpeg2 transport ...
ASIC Design Methodologies & Tools (Digital) :: 16 Dec 2006 3:45 :: solvall :: Replies: 0 :: Views: 231
can you contract audio cdec ip?
i need some audio ips for my project.codec ips : wma9 mp3 mpeg2/mpeg4 audio formatshardwired rtl or dsp software based is ok.rtl codes shoulde include verilog rtl codes, c model source codes.dsp software based: adsp2181 , ti32050, arm9, or mips324ke...
Digital Signal Processing :: 16 Dec 2006 3:15 :: solvall :: Replies: 0 :: Views: 105
osilloscope program ?
what kind of prog is there to show the spectrum of music file in a player window.detail is required for me ....
Digital Signal Processing :: 15 Dec 2006 12:21 :: kronos2k3 :: Replies: 3 :: Views: 192
where to find an audio codec ip?
dear everybody,im searching for an audio codec ip.please tell me where to find.thank you very much...
Digital Signal Processing :: 07 Dec 2006 2:11 :: kebe :: Replies: 0 :: Views: 135
xilinx sysgen basics help
ly because my university is focused on dsps and microcontrollers. so ive decided to do research in vhdl and fpgas to encourage research and development in this interesting area.well, im doing digital audio processing in the fgpa (xup virtex ii-pro). ...
PLD, SPLD, GAL, CPLD, FPGA Design :: 06 Dec 2006 17:48 :: Muhon :: Replies: 0 :: Views: 120
bf533 question
hello,i have a ez-kit 533 board as well as visual dsp 4.0 software. i would like to learn how do embedded programming, and explore bf533 capabilities, but even after digging into adi website, viewing the demos and ... , i really dont konw where to s...
Embedded Systems and Real-Time OS :: 14 Oct 2006 10:25 :: fontp :: Replies: 1 :: Views: 276
spartan help needed..
hi everyone, for my post-grad project and thesis,i want to develop an fpga implementation of a very basic guitar processor.. or you could call it a general music processor.. with effects like reverb, delay, distortion, fuzz etc...i h...
PLD, SPLD, GAL, CPLD, FPGA Design :: 12 Oct 2006 8:56 :: wiztronix :: Replies: 5 :: Views: 306
high pass filters
hi guys,i have notice some codecs have high pass filter option to remove 50/60 hz noise. whr does this noise come frm? hw do we remove this noise and dc shift if the codec tht we use tlv320aic12 doesnt have this option? thanks...
Digital Signal Processing :: 05 Oct 2006 12:07 :: danesh :: Replies: 2 :: Views: 258
interfacing to audio codecs using dspic33f dci module
hi, is there any source code for interfacing to audio codecs using dspic33f dci module? im currently using the dspic33f and si3000 codec.thanks...
Microcontrollers :: 18 Sep 2006 5:44 :: rain6 :: Replies: 0 :: Views: 222
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