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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...
Andrew Chalk - 2006-12-11 19:43:00
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....
kostbill - 2007-05-08 07:54:00
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...
2005-12-20 19:38:00
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...
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...
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...
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....
2005-08-29 04:53:00
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 ...
walter2k - 2008-02-23 06:36:00
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
...
Greg Berchin - 2008-07-09 21:14:00
On Wed, 09 Jul 2008 19:49:09 -0500, Vladimir Vassilevsky
wrote:
> The FDLS worked wonderfully.
> Pretty accurate results from the first try.
By the way, any FDLS solution that has both poles and frequency
response measurement errors will be biased. You might try the Total
Least Squares...
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 ...
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...
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...
Benjamin Spitschan - 2008-07-21 09:43:00
jadhav_rahul schrieb:
> Hello all,
> I have a code of linear pcm to u/A law conversion and viceversa
> to simulate on CCS, and i want to test it with standard input sequence and
> verify the output with expected result value. where can i get the standard
> test input and output ta...
2005-05-21 09:40:00
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...
Greg Berchin - 2007-12-04 15:13:00
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...
steveu - 2009-09-08 12:19:00
> On Sep 4, 8:32=A0am, Vladimir Vassilevsky wrote:
> > createdon2003 wrote:
> > > may be it will be more clear by a diagram.
> >
> > > --far_end-------------------|ENC|-------|DEC|--------//
> > > =A0 =A0| =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0
=
> =A0 =A0 =A0 =...
steveu - 2009-04-30 02:38:00
>
>
> HyeeWang wrote:
>
> > About ITUT G729, I have two questions.
> >
> > 1. In the processing section of G729 spec, it says to apply a high
> > pass filter with a cut-off frequency of 140 Hz. As we know, the
> > range of pitch is between 55 and 400 Hz. Then, how to search the p...
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...
Dmytro Bablinyuk - 2006-06-29 22:56:00
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...
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...
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...
sandhya - 2006-02-23 00:10:00
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...
sandhya - 2006-02-23 00:11:00
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...
Nate - 2008-06-06 12:58:00
I know that this is supper annoying but I have no other idea of how to
share some examples.
Wave1 Wave2 Wave3 Wave4 Wave5 Wave6 Wave7
1259 1267 949 1324 1154 1245 1191
736 666 0 736 1429 638 281
0 69 649 76 69 62 0
767 783 36 833 467 763 558
0 0 213 0 380 3 111
425 454 510 467 0 427 154
...
2007-04-11 14:18:00
Archive-name: dsp-faq/part2
Last-modified: Wed Apr 11 2007
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2006-05-08 20:51:00
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2006-05-03 13:17:00
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2006-05-04 16:51:00
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2004-12-06 15:22:52
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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"...