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DG1SCR > DSP 08.04.95 17:29l 491 Lines 17184 Bytes #999 (999) @ EU
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To : DSP @ EU
Q1.2.4: What are DSP Tutorials? Where can I get them?
Package: DSP Tutorials
Description: Computer aided instruction.
Platforms: suns under SunView.
Contact: Dr. Sally Wood, Electrical Engineering Department,
Santa Clara University, Santa Clara, CA 95053.
Q1.2.5: What are some DSP extensions to MATLAB? Where can
I get them? Package: MATLAB user's group public domain
extensions to MATLAB
Description: The MATLAB Digest is issued at irregular
intervals based on the number of questions and software items
contributed by users. To make submissions to the digest,
please send to hwilson@ua1vm.ua.edu with a subject: "DIG" and
description.
For the Pacific, try netlib@draci.cs.uow.edu.au located at
the University of Wollongong, NSW, Australia.
A plethora of toolboxes are available at FTP site:
research.att.com (use netlib for the username)
General index for the MATLAB User Group software library
Currently there are the following subdirectories:
approximation approximation theory
archive old MATLAB user group digests
control control theory
dataanalysis data analysis and statistics
graphics graphics programs
integration numerical integration
linearalgebra linear algebra utilities
misc miscellaneous
ode ordinary differential equations
optimization as the name says
pde partial differential equations
rootfinding zero-finding routines
specialfunctions special functions
teaching for classroom use
tools miscellaneous tools
In order to get an index for a subdirectory (tools, say) send
the message:
send index from MATLAB/tools
to netlib@ornl.gov.
In order to get some code, (unbundle in the `tools'
directory, say), send the message:
send unbundle from MATLAB/tools
to netlib@ornl.gov.
There is a set of Wavelet Tools available for MATLAB, see
Section 8 of this FAQ.
Communications Toolbox
We have developed a "Communications Toolbox" based on the
Matlab code for classroom use. It is used by students taking
a 4th year communications course where the emphasis is on
digital coding of waveforms and on digital data transmission
systems. The Matlab code that constitutes this toolbox has
been in use for over two years.
There are close to 100 "M-files" that implement various
functions. Some of them are quite simple and are based on
existing Matlab M-files. But a great many of them has been
created from scratch. We also prepared a lab manual (in TEX
format) for the 7 simulations which the students perform as
the lab component of this course. The topics of these
simulations are:
[1]. Probability Theory
[2]. Random Processes
[3]. Quantization
[4]. Binary Signalling Formats
[5]. Detection
[6]. Digital Modulation
[7]. Digital Communication
New version (Matlab 4.1) is available on:
file://ftp.mathworks.com/pub/contrib/misc/comm_tbx.tar
Old version (Matlab 3.5) is available on:
file://evans.ee.adfa.oz.au/pub/matlab/comms/comm_tbx.tar
Functionality is basically the same.
The manual has also been slightly changed. I am still
working to get all the figures in postscript format. Please
continue using the old manual until I have the new manual in
postscript format ready.
[Mehmet Zeytinoglu - mzeytin@ee.ryerson.ca]
Auditory Toolbox.
This toolbox, which has been tested and works on both Macintosh and Unix
computers, includes the following major models:
Lyon's Passive Long Wave Cochlear Model (our conventional model)
Patterson-Holdsworth ERB Filter bank with Meddis Hair cell
Seneff's Auditory Model (Stages I and II)
MFCC (Mel-scale frequency cepstral coefficients from the ASR world)
Spectrogram
Correlogram generation and pitch modeling
Simple vowel synthesis
The best way to get these functions is from:
ftp://ftp.apple.com/pub/malcolm
The following files are available:
AuditoryToolbox.mif.Z compressed FrameMaker docs ( 420 k )
AuditoryToolbox.psc.Z compressed Postscript docs ( 1373 k )
AuditoryToolbox.sea.hqx BinHexed self-extracting sources ( 573 k )
AuditoryToolbox.tar tar'd archive of sources ( 92 k )
AuditoryToolbox.tar.Z compressed tar'd sources ( 36 k )
If you can't get the bits electronically, we can send you a paper copy of
the documentation and a Macintosh floppy containing the toolbox. Sorry, we
can't make this software available via other media. Send a note to
shirley_caetano@bbcomm.apple.com
to request the software. She will need your request for TR#45 or the
"Auditory Toolbox" and a postal address (no PO boxes for foreign
addresses.)
SPC Toolbox
The Signal Processing and Communications (SPC) Toolbox is a
collection of Graphical Use Interfaced applications for
performing signal processing. It is built using a custom
runtime GUI programming paradigm that does not require the
use of global variables or the storing of GUI object handles
in the figure window UserData property (except for when speed
is of the utmost importance).
The toolbox is available from:
ftp://ftp.ece.ucdavis.edu/pub/dsplab/brown/spctools.tar.Z.5.31
ftp://ftp.mathworks.com/pub/contrib/signal/spctools.sh
SPC Tools have been tested on Sun Sparcstations running 4.1 and 4.2
(version 4.0a is not supported) and MS-Windows Matlab versions 4.0
and 4.2.
[Dennis W. Brown browndw@ece.nps.navy.mil ]
FOR STUDENTS: Prentice Hall has published a student edition
of matlab which contains a book and set of disks for PCs and
Macs. The software is limited only in matrix size (32 x 32
matrix; 1024 elements) and in its ability to import or call C
or Fortran subroutines. On the plus side, it is able to run
without a coprocessor (it will use one if it is present) and
it includes a subset of the Signal Processing and Controls
Toolboxes, The Signals and Systems Toolbox, which provides
for added functionality.
Book only (about US$30): ISBN =0138560064;
Book + disk: (about US$50) ISBN=0-13-855974-0 for 3.5"
or ISBN=0-13-855982-1 for 5.25
Macintosh version: ISBN=0-13-855990-2.
There will be related books out by mid to late 1993 :
Computer Aided Signal Processing with MATLAB, by Burrus,
Oppenheim, McClellan, Parks, Schafer, and Schussler;
and Signal Processing : A Computer Approach, by Etter. More
books in this MATLAB Curriculum Series are planned.
For general info: matlab@prenhall.com
[From the Matlab Users Group (Editor, hwilson@ua1vm.ua.edu)]
Q1.2.6: What are the Signal Processing Packages for Mathematica?
Where can I get them?
Package: Signal Processing Packages (SPP) and Notebooks.
Freely distributable extensions to Mathematica. Enables the
symbolic manipulation of signal processing expressions: 1-D
discrete/continuous convolutions and 1-D/m-D linear transforms
(Laplace, Fourier, z, DTFT, and DFT). For linear transforms,
you can specify your own transform pairs and see the
intermediate computations. Great for showing students how to
take transforms, or for deriving input-output relationships in
a transform domain. Additional abilities include analog
filter design, solving DE's using transforms, converting
signal processing expressions to their equivalent TeX forms,
number theoretic operations (Bezout numbers, Smith Form
decompositions, and matrix factors), and multirate operations
(graphical design of 2-d decimators). Accompanying the SPPs
are tutorial notebooks on analog filter design, Fourier
analysis, piecewise convolution, and the z-transform (includes
a discussion of fundamentals of digital filter design). These
Notebooks illustrate difficult concepts (such as the
flip-and-slide view of convolution) through animation.
Get this file, and read the instructions:
file://gauss.eedsp.gatech.edu/Mathematica/README
A freely distributable Notebook reader is available for
Macintosh computers and IBM-compatibles running MicroSoft
Windows by anonymous ftp:
Mac: file://mathsource.wri.com/pub/NumberedItems/0204-297-0011
Windows: file://mathsource.wri.com/pub/NumberedItems/0203-599-0011
Contact: Brian Evans, evans@eedsp.gatech.edu.
Dr. Roberto H. Bamberger reports: I have developed a series
of about 30 Lectures that I use for EE341 (Analog
Communication Systems) here at Washington State University.
They use the SPP by Brian Evans. They discuss many concepts
associated with linear systems theory. They are available
from: file://yardbird.eecs.wsu.edu/pub/Notebooks.Topics
covered include LTI system theory, convolution, AM, FM, PM
modulation and demodulation, and the sampling theorem. NOTE:
All Notebooks were developed under NeXTSTEP 3.1 using
Mathematica 2.2. I make no guarantees about the graphics
being able to be rendered on anything other than a NeXT.
FOR STUDENTS: A student version of Mathematica is available
for $175. The price includes a copy of the reference manual.
The only drawbacks to the student version are that the
floating point coprocessor is disabled and that upgrades
cannot be ordered.
Q1.2.7: What is the Control Systems Analysis Packages for Mathematica?
Where can I get them?
Package: Control Systems Analysis Package (COSYPAK) and Notebooks
Description: Public domain extension to Mathematica.
Classical and state-space control analysis and design
methods. The Notebooks supplement the material in the
textbook "Modern Controls Theory" by Ogata. Largely based on
the Signal Processing Packages (SPP, see above).
Contact: Dr. Sreenath, sree@veda.esys.cwru.edu.
To obtain: anonymous ftp veda.esys.cwru.edu (129.22.40.9).
Q1.2.8: What are some other Mathematica DSP Notebooks?
The following Mathematica notebooks can be ftped from
ftp.apple.com:
pub/malcolm/FilterDesign.math IIR Filter Design (continuous and discrete)
pub/malcolm/ear.math Implementation of Lyon's Cochlear Model
pub/malcolm/Gammatone.math Implementation of Gammatone Cochlear Model
Printed copies (with floppies) are available from the author
[malcolm@apple.com]
The following Mathematica notebooks can be ftped from
ccrma-ftp.stanford.edu:
pub/DSP/GenHamming.ma.Z Generalized Hamming windows
pub/DSP/Kaiser.ma.Z The Kaiser window
pub/DSP/WinFlt.ma.Z Digital filter design by the "window method"
(There are other DSP related items in pub/DSP on ccrma-ftp;
see other sections of this FAQ for details).
Q1.2.9: What is the Linear Systems Toolbox for Maple?
Where can I get it?
Package: Linear systems toolbox for Maple.
Description: Public domain extension to Maple.
Contact: Tony Richardson, amr@mpl.ucsd.edu.
To obtain:
file://ftp.egr.duke.edu/pub/maple/linsys1.2.tar.Z
Q1.2.10: Where can I get text to speech conversion software?
There is additional information in the comp.speech FAQ on speech systems.
Free (but not public domain) text to speech conversion
software is available via anonymous ftp from
wilma.cs.brown.edu in the pub directory as speak.tar.Z. It
will compile and run on a SPARC's built-in audio after
modifying speak.c with the path of your libaudio.h (e.g.,
/usr/demo/SOUND/libaudio.h). It's a simple phoneme
concatenation system with commensurate synthesized speech
quality (a directory of phoneme audio files is included).
[Joe Campbell, jpcampb@afterlife.ncsc.mil]
A public domain version of the same Naval Research Lab text
to phoneme rules can be obtained from:
file://svr-ftp.eng.cam.ac.uk/comp.speech/sources/english2phoneme.shar
This is known to have some problems.
A implementation of the Klatt phoneme to waveform speech
synthesiser is in:
file://svr-ftp.eng.cam.ac.uk/comp.speech/sources/klatt-0.02.tar.Z
This directory also contains lossless speech compression
(shorten-1.08.tar.Z), speech recognition (recnet-1.1.tar),
acoustic modelling (rasta.tar.Z) and text normalisation
(textnorm.shar) software.
Q1.2.11: Where can I get filter design software?
There are filter design programs available via anonymous FTP. The
following are summarized here and discussed in greater detail below:
1. August 1992 IEEE Trans. on Signal Processing: METEOR FIR
filter design program.
2. DFIR FIR filter design program.
3. Netlib IIR filter design.
4. IEEE Press "Programs for Digital Signal Processing".
The August 92 issue of IEEE Transactions on Signal Processing
there is a paper entitled "METEOR: A Constraint-Based FIR
Filter Design Program" by Kenneth Steiglitz, Thomas W. Parks
and James F. Kaiser. They describe an FIR design program
which allows specification of the target frequency response
characteristics in a fairly generalised and flexible way. As
well as designing filters, the program can optimise filter
lengths and push band limits.
The paper contains a footnote which says "Pascal and C
versions of source code are available to anonymous ftp at
princeton.edu in the directory /pub as meteor.p, form.p,
meteor.c and form.c".
True, they are. They appear to work. The Pascal versions
have been put through p2c to get the C versions; all the
needed Pascal library stuff is included in the C versions and
they built error-free out of the box for me on an SGI
machine.
One catch is, there is no manual - you need the paper to know
how to drive the programs.
[Steve Clift, clift@ml.csiro.au]
Another public domain filter design package is DFIR, for FIR
filter designs. It includes design capabilities for:
equiripple linear phase multiband filters, linear phase
differentiators, linear phase Hilbert transform filters, MMSE
interpolating filters and equiripple Nyquist filters. It is
written in Fortran 77 and has been tested on DECStations and
Suns.
It is available from: aldebaran.ee.mcgill.ca/pub/dfir.
Additionally, a package to plot filter responses is available
in "pltfilter-V2R0.tar.Z".
[Peter Kabal, via Witold Waldman]
Another source is netlib: "A free program to design IIR
Butterworth, Chebyshev, and Cauer (elliptic) filters, in any
of lowpass, bandpass, band reject, and high pass
configurations, is available in netlib (e.g.
research.att.com) as the file netlib/cephes/ellf.shar.Z. By
email to netlib@research.att.com the request message text is
`send ellf from cephes'
[Stephen Moshier, mosher@world.std.com]
The Fortran source code from the IEEE Press book "Programs
For Digital Signal Processing" is available for anonymous ftp
from
file://nimios.eng.mcmaster.ca/pub/IEEE/software/dsp.zip
It includes FIR and IIR filter design software, as well as other
general purpose DSP subroutines.
There is also a C/C++ version of the Parks-McLellan FIR
filter design program available from
file://ftp.uu.net/usenet/comp.sources.misc/volume22/fir/part01.Z
This program was created and tested using Borland C++ 2.0.
This requires a pretty reasonable C++ compiler - it is
reported that QuickC (not C++) won't do it.
[Witold Waldman, witold@hotblk.aed.dsto.gov.au, from Charles
Owen at mgcbo@uxa.ecn.bgu.au]
{ There are other free filter design programs floating around
out there, such as optfir/wfir. Does anyone know of ftp sites? }
Q1.2.12 What is PC Convolution? Where can I get it?
P.C. convolution is a educational software package that graphically
demonstrates the convolution operation. It runs on IBM PC type computers
using DOS 4.0 or later. It is currently being used in schools of Mathematics,
Electrical Engineering, Earth Sciences, Aeronautics, Astronomy, Geophysics,
and (believe it or not) Experimental Psychology.
The current version of this software only demonstrates continuous time
convolution, but a discrete time version is in the works.
Anyone may download a demonstration version of this software from
ftp://lamarr.ee.umr.edu/pub/pcc5.zip
University, college, military academe, and other instructors may
obtain a free and fully operational version of the software after they answer
a few simple questions concerning their affiliation and how they
plan to use the program.
Contact
Dr. Kurt Kosbar
117 Electrical Engineering Building,
University of Missouri - Rolla Rolla, Missouri,
USA 65401
phone: (314) 341-4894
e-mail: kk@ee.umr.edu
Q1.2.13: What is the AudioFile System? Where can I get
it?
The AudioFile System (AF) is a device-independent
network-transparent audio server. The distribution includes
device drivers and server code for Digital RISC systems
running Ultrix, Digital Alpha AXP systems running OSF/1, and
Sun Microsystems SPARCstations running SunOS. Also included
are an API and library, out-of-the-box core applications, and
a number of contributed applications. AudioFile allows
applications to generate and process audio in real-time and
at present handles up to 48 KHz stereo audio.
AudioFile is distributed in source form, with a copyright
allowing unrestricted use for any purpose except sale (see
the Copyright notice). af@crl.dec.com is a mailing list for
discussions of AudioFile. Send mail to af-request@crl.dec.com
to be added to this list.
The kit is located at:
file://crl.dec.com/pub/DEC/AF/AF2R2.tar.Z
A sample kit of sound-bites is available as:
file://crl.dec.com/pub/DEC/AF/AF2R2-other.tar.Z
[Larry Stewart, stewart@crl.dec.com]
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