similar to: Is it possible to mix encoded audio?

Hi to all, I developed a VoIP application using Speex. Now i want to record the conversation to a file. As i have two indipendent thread transmitting e receiving voice i whish to mix both audio streams in one stream before saving the conversation to a file. I'm using Speex in narrow band mode, 8 bits per sample, mono. i found at this link http://www.vttoth.com/digimix.htm a simple way to

There were some DNS problems recently, but it looks like the site is back up now. (If it still doesn't work for you, you can try querying at www.dnsstuff.com, but note that you can't access www.speex.org by IP address alone so you'd have to make a temp entry in your hosts file or something...) Tom Fabio (fabpet@aliceposta.it) wrote: > > I can't open the website....is

Dear all, a program that worked well for weeks today gave me consistently the error message no lines available in input referring to the lines for (i in (0:(timeintervals-1))) { j=subjectquantity+6+i*(subjectquantity+7) print (j) results<-read.table(file, header=F, skip=j, nrows=subjectquantity) timeintervals have been specified as argument as 12 subjectquantity as 9 the file it should

Hi dear R community, I have up to 12 measures of a protein for each of 6 patients, taken every two or three days. The pattern of the protein looks periodic, but the height of the peaks is highly variable. It's something like this: patient <- data.frame( day = c(1, 3, 5, 8, 10, 12, 15, 17, 19, 22, 24, 26), protein = c(5, 3, 10, 7, 2, 8, 25, 12, 7, 20, 10, 5) ) plot(patient$day,

When I call inbound with a cell phone (via SIP PSTN trunk) some of my prompts the first word is cut off. I'm assuming the prompt is needing to be transcoded on the fly and it's not getting transcoded fast enough. I did a file convert to create gsm versions (currently they are referenced in my dial plan with no extension Seem to have same problem. How do I determine which file

Dear list, What on earth is spec.pgram() normalized too? If you would like to skip my proof as to why it's not normed too the mean squared or sum squared amplitude of the discrete function a[], feel free too skip the rest of the message. If it is, but you know why it's not exact in spec.pgram() when it should be, skip the rest of this message. The issue I refer herein refers only too a

Hi dear R community, I have up to 12 measures of a protein for each of 6 patients, taken every two or three days. The pattern of the protein looks periodic, but the height of the peaks is highly variable. I'm testing for periodicity using a Monte Carlo simulation envelope approach applied to a cumulative periodogram. Now I want to predict the location of the peaks in time. Of course, the

Hi all I am a relatively new R user so please excuse this question if it has been covered some where else, just tell me where to find it. I have a simulation model that out puts dates in a standard dd/mm/yy format R reads this as a factor and I cant find anything that will allow me to convert them to a date. In S+ I have used a chron() function that required you to specify the format of the

Hi, I am wanting to use NUT to connect to an Eaton Powerware 5110 UPS using USB to connect. - I am using NUT 2.0.2 - I have compiled it with USB support - I can see that the UPS is registered as connecting in /var/log/messages eg usb 3-1: USB disconnect, address 3 usb 3-2: new low speed USB device using uhci_hcd and address 4 But I don't know how to progress from here.

Dear helpers I constructed a data frame with this structure > str(dados1) `data.frame': 485 obs. of 16 variables: $ Emissor : int 1 1 1 1 1 1 1 1 1 1 ... $ Marisca.Rio : int 1 1 1 1 1 1 1 1 1 1 ... $ Per?odo : int 1 1 1 1 1 1 1 1 1 1 ... $ Reproducao : int 3 3 3 3 3 3 3 3 3 3 ... $ Estacao : int 2 2 2 2 2 2 2 2 2 2 ... $ X30cm : int

Hello. I'm from Federal University of Rio Grande do Sul - Brazil and I'm trying to adapt speex_echo.h (speex-1.2beta3-win32) to our video-conference software code. We are working on amplitude values, but I realised that in order to AEC works, one has to convert amplitude to frequency and filter the echo frequencies. So, my question is: Do I have to manually convert amplitude samples to

Dear Prof Ripley, First of all, unless you are an english professor, then I do not think you have any business policing language. I'm still very much a student, both in R, and regarding signal analysis. My competence on the subject as compared too your own level of expertise, or my spelling for that matter, may be a contension for you, but it would have been better had you kept that opinion

Dear Rdev, in R 2.9.0 the doc of function stars() does not state that it returns invisibly the location of atomic graphs. This is a valuable information as it may help to set a value for the key.loc parameter of this function. My whish is just that the "value" section in stars.Rd should be documented. Best, Pr. Jean R. Lobry BTW, the URL:,

Hi! I'm learning mgcv, and reading Simon Wood's book on GAMs, as recommended to me earlier by some folks on this list. I've run into a question to which I can't find the answer in his book, so I'm hoping somebody here knows. My outcome variable is binary, so I'm doing a binomial fit with gam(). I have five independent variables, all continuous, all uniformly

> Err. Ok, as I got it, 'bin 0' has it's amplitude in W[0], bin 1 to N-1 has > it's real part in W[i*2-1] and it's imag in W[i*2], and finally the > nyquist amplitude is in W[N-1] Not quite, it's packet "real, real, imag, real, imag, ...". > I took this from how power_spectrum() computes, so I might be off :) But power_spectrum() handles that

Hello, In doing a series of non-linear estimations of a function which is a sum of a varying number of sinusoids, I would like to "autogenerate" the arguments needed by nls() depending on that number. For example, when there are two sinusoids: > nls( y ~ mu + A1 * cos(2*pi*f1*x - P1) + A2 * cos(2*pi*f2*x - P2), data = some.xy.data, start = list( mu=some.value0,

>> Actually, computing the "power spectrum" for each frame of W shows >> how large an ammount of the original signal at time offset j the >> echo canceller thinks should be removed from the current input frame. > > Careful when looking at W because of how the real and imaginary parts > are packed in the array. Err. Ok, as I got it, 'bin 0' has it's

useR's, I want to create a "movie" of a sin function (from 0 to pi/2) using levelplot() in the lattice package. I basically want to create 20 or so plots of the sin function starting with an amplitude of 0 and ending at amplitude 1. By using a loop and plotting these in succession, it will have the appearance of a movie or animation. I believe I know how to do this part, but I am

I would appreciate some help with the followiing error ... what did I do wrong and what is the woraroud. > library(nlme) > glmod <- gls(A ~ T +cosP +cos2P +cos4P +cos5P +sin3P +sin5P +cosP2 +sinP3 +P2, correlation=corAR1(),method="ML") Error: cannot allocate vector of size 491.3 Mb I have a bunch of humans' breathing signals. The recording frequency was 30 samples per

Dear friends, this time I have a problem with using waba function. Firstly, I'll explain you my situation. In the survey a gruop of supervisors judge the dipendents of a company. One supervisor reported on more than one subordinate. Thus, I need to show that lack of independence is not a problem, and a reviewer told me to use WABA. The question is, how? In which way i can build my X and Y?