similar to: speex_preprocess in fixed point arithmetics

Hi,all: I met a problem of nls. My data: x y 60 0.8 80 6.5 100 20.5 120 45.9 I want to fit exp curve of data. My code: > nls(y ~ exp(a + b*x)+d,start=list(a=0,b=0,d=1)) Error in nlsModel(formula, mf, start, wts) : singular gradient matrix at initial parameter estimates I can't find out the reason for the error. Any suggesions are welcome. Many thanks. [[alternative HTML

speex_preprocess() isn't covered in the manual, is it? But, it's very easy to use. If it returns non-zero, voice was detected. Tom "Meir Yeshurun" <mt_yeshurun@hotmail.com> wrote: > > I would like to use speex_preprocess() for voice activity detection. I read > the comments in speex_preprocess.h and the relevant paragraphs in the Speex > manual. Is there

As I understand it, there are two separate ways to get VAD information from Speex: 1) Using the encoder. 2) Using speex_preprocess(). I present the following observations from an application developer's perspective. They may be wrong, in which case I would appreciate corrections. - The two VAD systems are implemented differently. - speex_preprocess()'s VAD provides more accurate

Hi all, as in subject, speex_preprocess inject noise in my data. Someone can help ? Here's the way that i'm using: #define NN 160 /* 20msec di audio */ #define AUDIO_SAMPLERATE 8000 spx_int16_t TEMP_Buffer[NN]; speex_pp_state = speex_preprocess_state_init(NN,AUDIO_SAMPLERATE); c = denoise; speex_preprocess_ctl(speex_pp_state, SPEEX_PREPROCESS_SET_DENOISE,&c); c = agc;

Hi, While most of the native functions take float[] array as input, why the function speex_preprocess(...) can only accept short[] array? How do I call this function if I have float[] array inputs? Do I need to convert the floats to Integers back and forth? Thank you in advance. Long Deng -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi,all I do some work on ARM cpu with VS2005, speex1.2beta. I use the FIXED_POINT define and it works well of codec and decode. but the speex_preprocess() still cannot work real time. I look into the soucecode , and didn't find any fix-point #ifdef computation . So I wish there should be some fix in the future version. If you already done the similar, pls tell me , thanks! Fan

I would like to use speex_preprocess() for voice activity detection. I read the comments in speex_preprocess.h and the relevant paragraphs in the Speex manual. Is there anywhere I can find more information on how to use this function? Thanks for your help, Steve _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today

Dear All, Trying to port an application to linux using wine. The program seems to have got struck with some kind of socket issues. Here is the last few lines of the log generated . Anything thats going wrong . ClientPlugHandler.dll, ClientPlug.dll and Dispatcher.dll are dlls within the application folder .I registered these dlls. Any help would be appreciated.

Hello, I'm from Espressif Systems company, software department. Our company develops processors based on Xtensa architecture like ESP32 and ESP8266. We propose the integration of a backend targeting Xtensa architecture. We started to develop LLVM Xtensa backend almost a year ago. The reason was that we saw a demand from our large developers community. Currently only GNU compiler supports

Is anybody suffering from a similar problem or can anybody suggest a cure or a pointer......? I've various hardware platforms (both HP & Intel though all SMP) scattered around remote sites each running one of the following OSs (Redhat 7.2, Redhat 7.3, Mandrake 8.2 & Mandrake 9.0) each with Samba installed (either the version that ships with the relative OS or 2.2.5.2 or 2.2.8.2

Hey, I am using the ets() function in the forecast package to find out the best fit parameters for my time-series. I have about 50 sets of time series data. I'm currently using the function as follows: ets(x,model="AZZ",opt.crit="mse") As to my observation about 5-10 of them have been identified by ets to have a trend and an alpha, beta values have been thrown up -

Hi All I'm trying to set up a machine with a simple samba configuration. I've written the config file with no problems, however any time I attempt to connect to the shares it doesn't work. Firstly, the smb.conf: [global] netbios name = TEMPSRV workgroup = LIPSON map to guest = Bad User [ittechs] comment = Should not see me... path = /var/smb/ittechs read only = no force user =

Hey, I have a data frame x which consists of say 10 vectors. I essentially want to find out the best fit exponential smoothing for each of the vectors. The problem while I'm getting results when i say > lapply(x,ets) I am getting an error when I say >> myprint function(x) { for(i in 1:length(x)) { ets(x[i],model="AZZ",opt.crit=c("amse")) } } The error message is

Hey, I have a list of 30 odd time-series (products) in columns of a data-frame. I want to apply time-series forecasting functions across all the columns of the data-frame in order to determine which is the best model to use. How do I go about this? Phani [[alternative HTML version deleted]]

On Mar 28, 2004, at 8:23 PM, Jean-Marc Valin wrote: >> The st->zeta pointer isn't freed in the >> speex_preprocess_state_destroy() >> function of the preprocess.c file (alloced in line 167). It's in >> Speex 1.1.4 >> by the way. > > Oops... Thanks for letting me know. I'll change that for the next > release (in the mean time, the fix is

Hello, James, Thank you very much for your advices! The next step in compiler development on Espressif is object file generation. There are no essential problems with this step, it will be implemented in nearest future. Currently Xtensa backend is able to print and parse assembly, I used about 1300 tests from gcc torture testsuite and GNU binutils to debug assembly output and now all tests

Jean-Marc Valin wrote: >>Reverberation suppression? >> >> > >Basically, it means that if you are in a room with lots of echo (long >decay), I can reduce it a bit. > > > >>I guess this would help reduce local source echoes? I've never >>_noticed_ that to be a problem in my use, but I would imagine that >>using a notebook's

Hi all, i am building a web server on centos version 4 running httpd-2.0.52 mysql we have a ldap server on the network which has got all the vhost details. so i am trying to pull vhost details from the ldap server could not find module vhosts ldap for centos. can some one please point me in the right direction any help is much appreciated. cheers phani

Hello I have a table describing butterfly range traits. It is composed of three columns as below Species name range size (X) latitude of range midpoint (Y) There are 11 kinds of butterflies. Each has its range size, and the latitude of each range midpoint ranges from 9 to 19. I would like to have the average range size of every degree of latitude. For example, the average range

Hello I have a table describing butterfly range traits. It is composed of three columns as below Species name range size (X) latitude of range midpoint (Y) There are 11 kinds of butterflies. Each has its range size, and the latitude of each range midpoint ranges from 9 to 19. I would like to have the average range size of every degree of latitude. For example, the average range