**PDL::FFT - FFTs for PDL**

!!!!!!!!!!!!!!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! As of PDL-2.006_04, the direction of the FFT/IFFT has been reversed to match the usage in the FFTW library and the convention in use generally. !!!!!!!!!!!!!!!!!!!!!!!!!!WARNING!!!...

ETJ/PDL-2.025 - 19 Nov 2020 13:17:38 UTC - Search in distribution- PDL::PP - Generate PDL routines from concise descriptions
- PDL::Transform - Coordinate transforms, image warping, and N-D functions
- PDL::Course - A journey through PDL's documentation, from beginner to advanced.
- 8 more results from PDL »

**Math::FFT - Perl module to calculate Fast Fourier Transforms**

This module implements some algorithms for calculating Fast Fourier Transforms for one-dimensional data sets of size 2^n. The data, assumed to arise from a constant sampling rate, is represented by an array reference $data (as described in the method...

SHLOMIF/Math-FFT-1.36 - 17 Oct 2020 13:23:20 UTC - Search in distribution**PDLA::FFT - FFTs for PDLA**

!!!!!!!!!!!!!!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! As of PDLA-2.006_04, the direction of the FFT/IFFT has been reversed to match the usage in the FFTW library and the convention in use generally. !!!!!!!!!!!!!!!!!!!!!!!!!!WARNING!!...

ETJ/PDLA-Rest-2.019106 - 28 Apr 2019 20:08:51 UTC - Search in distribution- PDLA::Image2D - Miscellaneous 2D image processing functions
- PDLA::Slatec - PDLA interface to the slatec numerical programming library
- PDLA::ImageND - useful image processing in N dimensions
- 1 more result from PDLA-Rest »

**Math::GSL::FFT - Fast Fourier Transforms (FFT)**

* "gsl_fft_complex_radix2_forward($data, $stride, $n) " This function computes the forward FFTs of length $n with stride $stride, on the array reference $data using an in-place radix-2 decimation-in-time algorithm. The length of the transform $n is r...

HAKONH/Math-GSL-0.42 - 12 Jun 2020 22:09:20 UTC - Search in distribution- Math::GSL::FFT - Fast Fourier Transforms (FFT)
- Math::GSL - Perl interface to the GNU Scientific Library (GSL)

**Audio::Analyzer - Makes using Math::FFT very easy for audio analysis**

This module makes it easy to analyze audio files with the Fast Fourier Transform and sync the output of the FFT in time for visual representation....

TRIDDLE/Audio-Analyzer-0.22 - 22 Jul 2013 22:36:22 UTC - Search in distribution**PDLA::PP - Generate PDLA routines from concise descriptions**

Now that you have some idea how to use "pp_def" to define new PDLA functions it is time to explain the general syntax of "pp_def". "pp_def" takes as arguments first the name of the function you are defining and then a hash list that can contain vario...

ETJ/PDLA-Core-2.019107 - 28 Apr 2019 20:28:44 UTC - Search in distribution- PDLA::Course - A journey through PDLA's documentation, from beginner to advanced.
- PDLA::Index - an index of PDLA documentation
- PDLA::Primitive - primitive operations for pdl
- 2 more results from PDLA-Core »

**Bio::KBase::CDMI::CDMI_EntityAPIImpl**

RDO/Bio-KBase-0.06 - 15 Aug 2012 23:56:34 UTC - Search in distribution

**PDLA::Transform - Coordinate transforms, image warping, and N-D functions**

PDLA::Transform is a convenient way to represent coordinate transformations and resample images. It embodies functions mapping R^N -> R^M, both with and without inverses. Provision exists for parametrizing functions, and for composing them. You can u...

ETJ/PDLA-Transform-2.019106 - 28 Apr 2019 19:54:21 UTC - Search in distribution**Numeric::LL_Array - Perl extension for low level operations over numeric arrays.**

One of the principal overheads of using Perl for numeric vector calculations is the need to constantly create and destroy a large amount of Perl values (there is no such overhead in calculations over scalars, since Perl knows how to reuse implicit te...

ILYAZ/Numeric-LL_Array-0.1504 - 08 May 2010 01:07:03 UTC - Search in distribution**Audio::Data - module for representing audio data to perl**

Audio::Data represents audio data to perl in a fairly compact and efficient manner using C via XS to hold data as a C array of "float" values. The use of "float" avoids many issues with dynamic range, and typical "float" has 24-bit mantissa so quanti...

NI-S/Audio-1.029 - 02 Jun 2004 18:52:42 UTC - Search in distribution**Audio::MFCC - Perl module for computing mel-frequency cepstral coefficients**

This module provides an interface to the Sphinx feature extraction library which can be used to extract mel-frequency cepstral coefficients from data. These coefficients can then be passed to the "Speech::Recognizer::SPX::uttproc_cepdata" function. Y...

DJHD/Speech-Recognizer-SPX-0.09 - 07 Jan 2008 20:24:44 UTC - Search in distribution**Prima::IPA::Global - methods that produce images where every pixel is a function of all pixels in the source image**

Contains methods that produce images, where every pixel is a function of all pixels in the source image. The process can be described with the mapping function s = M(R) where "s" is the pixel value in the output images, and R is the source image. clo...

KARASIK/Prima-IPA-1.09 - 04 Jun 2016 18:35:24 UTC - Search in distribution**Audio::Gramofile - Perl interface to libgramofile, a library derived from Gramofile**

new returns an object initialised with the parameters specified in the original C code. e.g. my $gramofile = Audio::Gramofile->new; set_input_file sets the input .wav file for track splitting and signal processing methods. e.g. $gramofile->set_input_...

BOBW/Audio-Gramofile-0.08 - 18 May 2008 19:40:59 UTC - Search in distribution**PDL::DSP::Fir::Simple - Simple interface to windowed sinc filters.**

At present, this module provides one filtering routine. The main purpose is to provide an easy-to-use lowpass filter that only requires the user to provide the data and the cutoff frequency. However, the routines take options to give the user more co...

JLAPEYRE/PDL-DSP-Fir-0.005 - 02 Aug 2012 12:58:10 UTC - Search in distribution**Audio::Analyzer::ToneDetect - Detect freq of tones in an audio file or stream**

Consider this alpha software. It is still under fairly active development and the interface may change in incompatible ways. Audio::Analyzer::ToneDetect is a module for detecting single frequency tones in an audio stream or file. It supports mono PCM...

MIKEGRB/Audio-Analyzer-ToneDetect-0.04 - 09 Sep 2013 02:14:05 UTC - Search in distribution**Acme::AlgebraicToRPN - convert algebraic notation to sane RPN**

Given a string with algebraic notation, convert to RPN, which is what any crappy dime store calculator needs to do anyway. Doesn't really process anything, that's up to you. You will get an array back with all of the variables and operations in RPN f...

THECRAMPS/Acme-AlgebraicToRPN-0.02 - 10 Mar 2009 13:40:34 UTC - Search in distribution**Lab::Instrument::TDS2024B - Tektronix TDS2024B digital oscilloscope**

AKHUETTEL/Lab-Measurement-3.730 - 04 Nov 2020 20:16:35 UTC - Search in distribution

**Math::Random::Brownian - Perl module for generating Fractional Brownian and Gaussian Noise**

Math::Random::Brownian is a perl module for calculating a realization of either fractional Brownian Motion, or a fractional Gaussian sequence. This is accomplished using the various methods. Currently, the C code for this module is due to Ton Dieker ...

WMSZELIGA/Math-Random-Brownian-0.03 - 17 Mar 2005 20:10:44 UTC - Search in distribution**Bundle::Math::Numeric - Bundle of modules related to numeric algorithms**

This is a bundle of modules related to numeric algorithms. Please have a look at Bundle::Math. If you would like to see a specific module included in a future version of this bundle, please send me an email or use rt.cpan.org....

SMUELLER/Bundle-Math-Numeric-1.00 - 05 Apr 2004 12:10:48 UTC - Search in distribution**Graphics::VTK::Imaging - A Perl interface to VTKImaging library**

Graphics::VTK::Imaging is an interface to the Imaging libaray of the C++ visualization toolkit VTK.....

CERNEY/Graphics-VTK-4.0.001 - 01 Feb 2003 15:47:39 UTC - Search in distribution