similar to: Write pure sine to *.ogg directly?

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 (Sorry if you get more than one copy of this message, but I felt that it was urgent to get this important info out.) The values of freedom and openness are crucial to understanding itself, so that civilization and public welfare now depend on them, as I argue below. These values may find their best expression in the free and open source software

Hi, Is there a package to perform a sine function fitting to XY data? Thx, Ashz -- View this message in context: http://r.789695.n4.nabble.com/Sine-function-fitting-tp3000156p3000156.html Sent from the R help mailing list archive at Nabble.com.

Greetings, I have several sets of oscillation data and would like to estimate the parameters of a sine function to each set (and hopefully automate this). A colleague provided an excel sheet that uses solver to minimize the RSS after fitting the sine function to each data set, but this cumbersome and difficult to automate. Is there a method in R for fitting a given sine function to a

Hi everyone, I am trying to fit a sine function on one year of wind data. I have two questions below. Looking around on the net I managed to get the following: Sine Equation: y = a + b * sin( c + d*x ) b is the amplitude, c is the phase shift, d is something deal with periodicty of data*.* This can be linearised by sin( c+dx ) = cos(c) * sin(dx) + sin(c) * cos(dx). If one calls dx = x1 y

Dear R-users, I'd like to fit a sine function to my data. The result should have a format (and thus the formula, too) y ~ a + sin(x+b) where y and x are vectors, and a and b are (yet) unknown values. The data sets (vectors x and y) are OK, and I can do a simple lm fitting lm(y~x), or lm(y~I(sin(2*pi*x/360))), succesfully My issue is that I'm not able to do the optional linear shift in

I have been attempting to estimate the periodic contribution of an effect to some data but have not been able to fit a sine wave within R. It would be nice to start by being able to fit a sine wave with an amplitude and frequency. x<-seq(0,20,by=0.5) y<-2*sin(2*pi*.5*x) #amplitude =2, frequency=0.5 # This failed to converge r<-nls(y ~ A*sin(2*pi*F*x), start=list(A = 1, F = 1),

Hello, I'm trying to generate a sine wave in R to fit my observations using the general formula: y=a*sin(b[x+h*pi)]+k where a = amplitude, b=period, h=phase shift, and k=vertical shift I want to use following translation to bring the sine function up onto the y-axis to range from 0-1, and this will place the wave on the x-axis from 0-pi/2. y=1/2sin(2[x+ 1/4*pi]) + 1/2 Additionally, I need

I tested Vorbis encoder - beta3 version, and here are my thoughts: - In comparison to beta2, subtle high-frequency artifacts seem to be gone (though they were small in beta2). Good job there! :-) - Velvet.wav also sounds better, but transparent quality is reached at -b256+. - Horn.wav still sounds very sucky, mode -b256 gives ~100kbps (this is understandable because in this sample practically

Hi Jean-Marc, my answers: see below. Any good ideas how I should proceed? Jean-Marc Valin <jean-marc.valin at usherbrooke.ca> hat am 1. Februar 2010 um 13:09 geschrieben: > Hi Frank, > > On 2010-02-01 05:56, Frank Lorenz wrote: > > I get really strange results when comparing floating and fixed point > > versions of interal variables of the ltp, so either something is

Dear R-helpers ? I have 7 data points that I want to fit a continuous curve to, that should look similar to a sine wave My data points would mark the local minima and maxima respectively. This is what I?ve got so far. And I would keep doing so, but sadly nls() then says that it has reached the maximum number of Iterations? ?

Hi all I am working on a heavy engineering project. And the requirement is that I needto do a lot of process before I store the data to the db. Now the question is that I want to do the process that I am doing but I want to do it in the background. What I actually mean to say is that..I just want the user to get a msg that Records Saved. But in real I want the process to go on in background.

On Thu, 2005-01-13 at 12:42 -0500, Jean-Marc Valin wrote: > Le jeudi 13 janvier 2005 ? 10:59 -0500, Jared Whitby a ?crit : > > Interestingly enough.. I started playing around with preprocessing > > options in 1.1.6 and happened upon the denoise filter > > (SPEEX_PREPROCESS_SET_DENOISE). When i run the test tone using that > > option it is completely filtered out and I

Hello list, I am making scatterplots of data that vary sinusoidally over 24 hours. With a bit of previous help from this list, I now can get an x-axis with time tics from 00:00 on the left edge to 12:00 in the middle and 00:00 on the right edge, i.e., just 24 hours. Now I would like to fit a sin function to the plot. I've looked all over CRAN and the web in general, but have not found a

Hi Jean-Marc, dBFS means dB relative to digital full scale. In other words: a sine value of -42 dBFS will, on a 16 bit PCM signal, swing between 131 and -131 only (16384 * 10^(-42/20)) So we are far below +/-8000. At the moment, I'm out of ideas how to debug systematically. That even very small rounding errors alter pitch values fundamentally makes the situation worse for me, because it

You mean the "real" (not the synthesized) residual? What is odd in your opinion? These glitches I mentioned or something else? I replaced the interpolated lpc (variable "interp_lpc") with the original lpc (variable lpc) for residual generation. This makes the situation worse, so lpc interpolation seems to "smooth" the error and reduces it. I will check the

[Follow-ups set to gmane.linux.centos.general] My wife had been running CentOS 6.4 almost since its inception; then her PC broke down. We got a PC from System76, and Ubuntu turned out utterly unsuitable for us, as expected -- as bad for us as Gnome3. (I had previously bought a System76 net book (starling iirc), and immediately installed the then current Fedora; all has been

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Hi Jean-Marc, I'm currently trying to analyze the LPC synthesis filter. For this, can you please tell me the exact format of the LPC coeffs (in variable interp_qlpc), please? cheers, Frank -----Urspr?ngliche Nachricht----- Von: "Frank Lorenz" <Frank_wtal at web.de> Gesendet: 02.02.10 11:00:16 An: jean-marc.valin at usherbrooke.ca CC: speex-dev at xiph.org Betreff: Re:

I wonder if anybody try to compress a pure sine wave using OPUS codec. When I compressed the mono 1KHz, 16bits 48000 samples per sec. audio stream using the 'opus_demo' utility: opus_demo -e audio 48000 1 2min_1kHz_Sine_16bit_48kHz.wave 2min_1kHz_Sine_16bit_48kHz.opus_raw I had the output stream that is shown below. 00 00 00 01 00 00 00 00 78 00 00 00 01 00 00 00 00 78 00 00 00 01 00

Hi guys, I can''t find a clear answer to this: is it possible/correct to have several threads write to the same Starling queue at the "same time"? It doesn''t seem reliable according to my tests - but maybe I am doing something wrong. If I do: def test_starling FooWorker.asynch_foo_test(:my_id => ''foo'') temp = [] for i in 1..1000 temp