Sign in
Search compdsp
comp.dsp by Keywords
Adaptive Filter | ADPCM | ADSP | ADSP-2181 | Aliasing | AMR | Anti-Aliasing | ARMA | Autocorrelation | AutoCovariance | Beamforming | Bessel | Blackfin | Butterworth | C6713 | CCS | Chebyshev | CIC Filter | Circular Convolution | Code Composer Studio | Comb Filter | Compression | Convolution | Cross Correlation | DCT | Decimation | Deconvolution | Demodulation | DM642 | DSP Boards | DSP/BIOS | DTMF | Echo Cancellation | Equalization | Equalizer | ETSI | EZLITE (Ez-kit Lite) | FFT | FFTW | FIR Filter | Fixed Point | FSK | G.711 | G.723 | G.729 | Gaussian Noise | Goertzel | GPIO | Hilbert Transform | IFFT | IIR Filter | Interpolation | Invariance | JTAG | Kalman | Laplace Transform | Levinson | LPC | McBSP | MIPS | Modulation | MPEG | Multirate | Notch Filter | Nyquist | OFDM | Oversampling | Pink Noise | Pitch | PLL | Polyphase | QAM | QDMA | Quantization | Quantizer | Radar | Random Noise | Reed Solomon | Remez | Resampling | RTDX | Sampling | Sharc | TI C6711 | Undersampling | Viterbi | Wavelets | White Noise | Wiener Filter | Windowing | XDS510PP | Z Transform
Discussion Groups
G.711
Comp.dsp is a worldwide Usenet news group that is used to discuss various aspects of digital signal processing.
We found 27 threads matching "g.711"
You are looking at page 1 of 1.
The most relevant threads are listed first
Re: Mu-Law Algorithm
Allan Herriman - 10:20 05-02-06
On Sun, 05 Feb 2006 09:00:37 -0600, "vikaspatil123"
wrote:
> Hi,
>
> I am doing project named Implementation of Mu-law Speech companding on
> TMS320vc5510 using DSK5510 board.
>
> I need help regarding algorithm for mu-law My data is 16-bit samples that
> i am getting from reading .W...
Merging G.711 files
Andrew Chalk - 19:43 11-12-06
I have two G.711 files/streams and I want to merge them. They represent each
side of a telephone conversation. I know I can create a 'stereo' .wav file
but I would rather create a single channel (mono) file. Can I just add
together each contemporaneous data point? If not, how should I do this....G.711 implementation
kostbill - 07:54 08-05-07
Hello.
I have read the G.711 spec from ITU and I have seen some implementations
written in C.
There is something I don't understand because I cannot understand it from
the spec and the different implementations I have seen produce different
results!
So, my question is in the bit ordering an...Coding distortion for a G.711 codec.
19:38 20-12-05
I have implemented a G.711 encoder and decoder over the StarCore 1400.
I need to determine the distortion produced by the conversion of linear
16 bit samples to 8 bit non linear PCM (encoding) and back to 16 bit
linear samples (decoding).
I was looking for a standard look-up table or something...vocoder transcoding question
radiohead - 19:06 24-09-03
hello,
i am endeavoring to transcode G.729 r8 to G.711 as my first serious
DSP project for a production environment.
I am seeking any relevant resources including how-tos, reference docs,
tutorials, working code, ..annnything
I am fairly new to DSP and don't really have much of an idea of ho...Re: ADPCM g.722 old ADI Code
Stephan M. Bernsee - 06:50 10-06-04
The book "C Algorithms for Real-time DSP" by Paul Embree includes code
for g.711 and g.722. I think it also comes with code for the
ADSP-21020/21062. I can't find my copy right now so I'm not 100% sure,
but if you still need it email me privately (smb [AT] dspdimension
[DOT] com) and I'll search...audio transcoding
DragosD - 12:43 21-12-05
Hi all,
I was wondering if anyone can give me some information (links, forums,
possible books) on audio transcoding topic.
I've been assigned this task and I need a starting point.
I'm generally interested in audio transcoding but more specific in
G.729.A or G.729.AB to G.723.1A transcoding....Need info on speech CODECS
04:53 29-08-05
Hi,
I work for a Multimedia startup company. we are luking for speech
codecs implemented on ARM9 platform for our end system.Can any one give
some info abt good companies who does Porting of speech codecs.
we need ITU G.723.1 or 3gpp AMR-NB and G.726, G.711.
Also cud any tell me how much ...Wimax Baseband Algorithms
walter2k - 06:36 23-02-08
Hi,
How complicated are Wimax baseband algorithms as compared to voice
algorithms (eg G.711).
I am new to wimax and need to have an estimate of the time required to
code and optimize wimax baseband algorithms.
Walter
...Comfort Noise Generator
kanhaiya - 03:01 08-10-04
Dear Experts
Well I've read a few previous posts on this aspect. The documents or
references I used were:
RTP Payload for Comfort Noise RFC3389.
Appendix II of G.711
Annex B of G.729
Well my query is regarding implementation of a codec independent CNG:
1) Which excitation is best for ...Re: Combining G711 streams
Vinod Rex - 13:30 08-08-03
Adrian Hey wrote in message news: ...
> Erik de Castro Lopo wrote:
>
> > kevinmr wrote:
> > >
> > > Hi, I have two streams of G711 coming into my process. I have a need
> > > to combine the streams and write the result to a file. Is this
> > > possible? Any ideas would be ap...Re: Definition of dBOV
Steve Underwood - 05:19 22-05-04
Ben Bradley wrote in message news: ...
> Back to quoting Steve Underwood:
>
> > That is defined as 8 specific samples
> > which will produce a 1kHz sine wave that is considered 0dBO. The clip
> > point turns about to be about +3.14dBO for a sine wave. I would think
>
> That...Re: Image and Video References
09:40 21-05-05
Randy Yates wrote:
> Hi Folks,
>
> I'm looking for authoritative and in-depth on-line or hardcopy
> references to the following topics:
>
> 1. The YUV color scheme and the reason for the choices in
> its various bit-depths (i.e., 6-2-2, etc.), how it maps
> to RGB, and any ot...Re: Nearest IIR System to FIR?
Greg Berchin - 15:13 04-12-07
Andor wrote:
> > Hahahahahaha ... if you only knew ... ;-)
>
> I'm all ears!
I'm really an artificial intelligence program running on an IBM PC XT.
> > If you have ideas about how to reformulate using the infinity-norm, I
> > encourage you to pursue them!
>
> I have. Just rec...Choosing external audio codec for VoIP-solution using a Blackfin
Nikolaj K. - 19:23 07-11-04
Hi,
We're implementing a VoIP-device for a university project. To handle the
sound part of the device we're using a Blackfin 532 from Analog Devices
As a start we want to provide G.711a- and ulaw for the user and later
if time permits a lower bitrate codec such as g.726.
Our problem is t...DSP contractor position in Sydney, AU
Dmytro Bablinyuk - 22:56 29-06-06
Hello to everybody,
I apologize for getting off topic but it looks like this is the only
place you can meet an experienced DSP engineer, the jobs forums are very
generic and partially hopeless. I am deeply sorry.
We have a position for DSP contractor (6 months to 1 year contract) in
Sydn...Re: Newbie Q: Goertzel threshold testing, speech detection
Jim Thomas - 10:22 12-04-04
Zack Angelo wrote:
> Hi,
>
> I'm currently using the Goertzel algorithm to do DTMF detection.
> Currently, I get the magnitude for each DTMF frequency, save the sums
> of the magnitudes that correspond to each number, then I assume
> whichever sum is the highest must the be the most l...Re: VOIP Clock rate adaption
Adrian Hey - 17:06 06-08-07
Rocky wrote:
> We currently have an E1 channel bank but have found that some of the
> available E1 cards for Asterisk will lock up to the extent that a
> power down reset is required to get it up again. Also, the E1 cards
> are relatively expensive so we are exploring the idea of using a LAN...Multiple openings for Telecom
sandhya - 00:10 23-02-06
Dear All
Many of our esteemed MNC clients are looking out for Oracle
professionals with multiple positions opening. Please go through the
list below and forward your updated word document CV if any of the
profile matches your requirement. Please email your CVs to
sandhya@amartyaplacements.com...Multiple openings for Telecom
sandhya - 00:11 23-02-06
Dear All
Many of our esteemed MNC clients are looking out for Oracle
professionals with multiple positions opening. Please go through the
list below and forward your updated word document CV if any of the
profile matches your requirement. Please email your CVs to
sandhya@amartyaplacements.com...manual solution solution manual study guide
sms123 - 02:24 05-04-08
These are part of our solutions not shown here , if the solution you
want isn't in
the list, do not give up, just contact us and we will find it to you
email: lsms9[at] yahoo.com
it's lsms9@yahoo.com
we have a lot of solutions manual over 700 solutions manual
solution manual Math
sol...comp.dsp FAQ [2 of 4]
14:18 11-04-07
Archive-name: dsp-faq/part2
Last-modified: Wed Apr 11 2007
URL: http://www.bdti.com/faq/
Previous section (1) Next section (3)
Q2: Algorithms and standards
Q2.1: Where can I get public domain algorithms for general-purpose DSP?
Updated ...comp.dsp FAQ [2 of 4]
20:51 08-05-06
Archive-name: dsp-faq/part2
Last-modified: Mon May 8 2006
URL: http://www.bdti.com/faq/
Previous section (1) Next section (3)
Q2: Algorithms and standards
Q2.1: Where can I get public domain algorithms for general-purpose DSP?
Updated ...comp.dsp FAQ [2 of 4]
13:17 03-05-06
Archive-name: dsp-faq/part2
Last-modified: Wed May 3 2006
URL: http://www.bdti.com/faq/
Previous section (1) Next section (3)
Q2: Algorithms and standards
Q2.1: Where can I get public domain algorithms for general-purpose DSP?
Updated ...comp.dsp FAQ [2 of 4]
16:51 04-05-06
Archive-name: dsp-faq/part2
Last-modified: Thu May 4 2006
URL: http://www.bdti.com/faq/
Previous section (1) Next section (3)
Q2: Algorithms and standards
Q2.1: Where can I get public domain algorithms for general-purpose DSP?
Updated ...comp.dsp FAQ [2 of 4]
15:22 06-12-04
Archive-name: dsp-faq/part2
Last-modified: Tue Oct 19 2004
URL: http://www.bdti.com/faq/
Previous section (1) Next section (3)
Q2: Algorithms and standards
Q2.1: Where can I get public domain algorithms for general-purpose DSP?
Updated 1...Re: IIR design and stability
Robin Clark - 04:35 11-01-04
On Sun, 04 Jan 2004 05:40:32 +0000, Martin Eisenberg wrote:
> > Thanks for reading ! I would like to design a 1st order digital
> > high pass filter with a 50 us time constant. The analog transfer
> > function is Ha(s)=50E-6*s/(1+50E-6*s).
> >
> Assuming that by "pre-warped pulsation"...