HDTenEightyP/NetNews huggingface dataset:
From: palm@NB.ROCKWELL.COM (Steve Palm)
Newsgroups: comp.dsp
Subject: Digital Filter Design Packages ?
Date: 19 Aug 92 22:05:08 GMT


I am looking for Digital Filter Design Packages. In particular
I would like to do IIR filter design and control the group delay.
I have seen some information posted on public domain packages,
but we are willing to spend some money to get a nice package
(nice GUI, interactive design, etc)
We have looked at Momentum System's QED and FDAS tools... 
and we have an old version of FILSYN... is there anything else out there?
SPARC is the preferred platform... but PC's, MAC's and VAX are ok. 

tks, kiwin
-----
Stephen [kiwin] Palm                                     TEL: +81-3-3265-8850
Rockwell International - Digital Communications Division     COMNET: 930-8862
Japan Engineering Design Center                          FAX: +81-3-3265-2864
      palm@nb.rockwell.com       palm@cs.cmu.edu           NIHON::PALM
From: nugroho@acsu.buffalo.edu (Srihanto A. Nugroho)
Newsgroups: comp.dsp
Subject: wavelet
Date: 12 Aug 92 14:19:53 GMT
Organization: UB

Hi....
I am a beginner in wavelet area.
I want to know if there is a wavelet demo program (or wavelet transform program)
that can be accessed by ftp ?
Thanks,
-anto-
Newsgroups: comp.dsp
Subject: Gabor transform and PVWD
From: psyxsgp@otago.ac.nz
Date: 15 Aug 92 02:21:08 +1300
Organization: University of Otago, Dunedin, New Zealand


	I am looking fora good reference to implement
time-frequency analysis software using the Gabor transform and PWVD.

	Something from IEEE Trans. or proceedings ..
could someone suggest a suitable reference please.

 
-- 
Stephen Pearce, University of Otago, Dunedin, New Zealand.
ph 064-3-4740999 ext 8166 home 064-3-4763778
From: parasite@athena.mit.edu (Vince)
Newsgroups: comp.dsp
Subject: mu-law encoding - definition?
Summary: what is def of mu-law
Keywords: mu-law
Date: 22 Aug 92 19:07:16 GMT
Followup-To: comp.dsp
Organization: Massachusetts Institute of Technology


Hello.

I have a set of data which is mu-compressed from
12 bits to 8 bits.  I need to maniulate it in
its 12-bit form and I'm not sure what the
conversion process between the two is.  All of
the books I've looked in for an explanation have
a few graphs displaying the wonderful properties
of mu-encoding but no direct explanation of how to
go from one to another.

Does anyone out there know the definitions of the 
encoding algorithm and wish to tell me what it is?
If it makes a difference, this data was taken off 
of the audio port of a Sun Sparcstation (/dev/audio).

Thanks.

-P
From: rrao@pima.intel.com (Ravi Rao)
Newsgroups: comp.dsp
Subject: Re: I860 fft performance
Date: 12 Aug 92 18:51:05 GMT
Organization: Intel Corp, Chandler, AZ

In article <1992Aug6.125445.10704@nntp.nta.no> hlj@hal.nta.no writes:
>
>If the following two conditions are met:
>
>	1. All your data occupies less than 8 kbytes (such that all data
>	   is in the cache or in registers)
		Obviously, you don't know about the existence of the nex-gen
		860 which has 16K of data/instr cache. There are some other
		instr enhancements like 'pfld.q' to make use of full b/w.

>	2. Your algorithm is such that it can be implemented in i860
>	   pipelined mode (which is awkward to program)
		To get peak performance, you have to program most uP in 
		assembly language. There is no doubt that the i860 pipeline
		is hard to follow, but once you get the hang of it, its fairly
		easy..............

>
>***** hlj@hal.nta.no (Harald Ljo"en) expressing his private opinions ******


--
____________________________________________________
Ravi S. Rao
SP1-82	Intel Corpn, Chandler, AZ

e-mail: rrao@hopi.intel.com, rrao@pima.intel.com
____________________________________________________

Newsgroups: comp.dsp
From: ronzu@comm.mot.com (Ron Zuckerman)
Subject: Re: mu-law encoding - definition?
Reply-To: ronzu@comm.mot.com
Organization: Motorola
Date: Sun, 23 Aug 1992 00:18:13 GMT

In article 2600@athena.mit.edu, parasite@athena.mit.edu (Vince) writes:
>
>Does anyone out there know the definitions of the 
>encoding algorithm and wish to tell me what it is?
>If it makes a difference, this data was taken off 
>of the audio port of a Sun Sparcstation (/dev/audio).
>

If you have the directory "/usr/demo/SOUND", you already have
the means to convert mu-law to linear and vise-versa.  If your
manipulating data using a C program, you'll need to include the
following:

#include <multimedia/ulaw2linear.h>

For a description of the conversion functions, execute:

man -M /usr/demo/SOUND audio_ulaw2linear

To compile, you'll need to add /usr/demo/SOUND to your include
path.  To link, you'll need link in /usr/demo/SOUND/libaudio.a

Hope this helps.
---
------------------------------------------------------------------
| Ron Zuckerman          E-mail: ronzu@isu.comm.mot.com          |
| Phone: (708)538-3134   FAX: (708)538-2818                      |
------------------------------------------------------------------
| "A madman got us into this, and it's beginning to look as if   |
|  only a madman can get us out." -- Chekov                      |
------------------------------------------------------------------
From: cbb1@ra.msstate.edu (Chris B. Borchert)
Newsgroups: comp.dsp
Subject: VERY basic DSP book needed
Date: 21 Aug 92 12:48:38 GMT
Organization: Mississippi State University

I am a computer scientist just beginning to get into DSP at work.  I have 
been looking for DSP texts but all are filled with formuls from the first 
page and never quit.  I liked Wiley's "Signal Processing in C" but it too 
looked overly complex for a first text.  Can anyone suggest a good book
for someone with no EE background, or something that will ease into DSP
slowly.  I can handle C code examples all day, but the formulas with
complex and imaginary numbers really get me.....

Thanks,
Chris Borchert
cbb1@ra.msstate.edu
Newsgroups: comp.dsp,comp.ai.neural-nets
From: nimmagdd@rtsg.mot.com (Venkat S. Nimmagadda)
Subject: question: pattern matching audio files?
Organization: Motorola Inc., Cellular Infrastructure Group
Date: Wed, 12 Aug 1992 15:57:20 GMT


Hi netters,

  I am new to both DSP and neural-nets. However I think, the problem
I face belongs in one of these disciplines. 

I am looking for efficient ways to match an audio file (in this
case a sun ".au" file) with a set of audio files to determine the
closest match.

Any pointers or info is appreciated. I will sumarize
if there is interest.

thanks,
venkat.

-- 
               
Venkat Nimmagadda			    phone: (708) 538-3736
Software Engineering Group, Motorala Inc.   nimmagdd@cadsun.corp.mot.com
Newsgroups: comp.dsp
From: denault@galileo.ifa.hawaii.edu (Tony Denault)
Subject: Any 96002 C compilers Users?
Organization: Institute for Astronomy, Hawaii
Date: Mon, 17 Aug 1992 22:23:34 GMT

I been writing some 96002 DSP code for Ariel's MM-96. I am using
Motorola's 96002 Macro Assembler. I would like to purchase a C compiler.
I've heard Motorola and Intermetrics sells a C compiler for the 96002. 
If you are familiar with these products, can you  email me you 
opinions/experiences with these product. 

Thanks

Tony Denault
--
/------------------------------------------------------------------------\
| Tony Denault, Institute for Astronomy,  | denault@uhifa.ifa.hawaii.edu |
| 2680 Woodlawn Drive, Honolulu, HI 96789 |               (808) 956-8101 |
\------------------------------------------------------------------------/
Newsgroups: comp.dsp
From: jeff@dsp.sps.mot.com (Jeff Enderwick)
Subject: Re: I860 fft performance
Organization: Motorola DSP Compilers
	<12948@inews.intel.com> <71151@apple.Apple.COM>
Date: 13 Aug 92 09:06:00


> Most RISC chips with the latest compiler technology can do better than
> most assembly langauge programmers.

That entirely depends on the chip, the compiler, and the algorithm being
implemented. The above statement seems to be true sometimes, but 
absolutely not all of the time. What kind of FFT time do you get with
a more traditional RISC architecture such as a R3000 (a RISC with a 
hot compiler) ? Is the odd-ball architecture of the i860 justified by
its improved performance ?

	Jeff Enderiwck
	jeff@dsp.sps.mot.com
Xref: sparky comp.dsp:1919 comp.sys.hp:9203
From: dajiang@matt.ksu.ksu.edu (DJ Ding)
Newsgroups: comp.dsp,comp.sys.hp
Subject: Need 2D FFT in C code
Date: 12 Aug 1992 10:25:54 -0500
Organization: Kansas State University
NNTP-Posting-Host: matt.ksu.ksu.edu

Prefer 2D FFT C code which is based on complex variables.

Thanks!

-DJ
From: jpcampb@afterlife.ncsc.mil (Joe Campbell)
Newsgroups: comp.dsp
Subject: Re: WANTED : Speech proc. software
Date: 13 Aug 92 06:59:57 GMT
Organization: The Great Beyond

In article <1992Aug10.092408.202257@uctvax.uct.ac.za> brmsea01@uctvax.uct.ac.za writes:
>Hi there
>
>Does anyone know of an FTP site for (or do you have) SPEECH PROCESSING 
>software ?
>
>I would appreciate anything along the usual lines of
>
>DTW , HMM , LPC , STFT , VQ etc
>
>ANY information would be a bonus (seeing I have found ZIP so far!)
>
>Many thanks
>
>Sean Borman
>University of Cape Town


The U.S. DoD's Federal-Standard-1016 based 4800 bps code excited linear
prediction voice coder version 3.2 (CELP 3.2) Fortran and C simulation source
codes are now available for worldwide distribution at no charge (on DOS
diskettes, but configured to compile on Sun SPARC stations) from:

Bob Fenichel
National Communications System
Washington, D.C.  20305
1-703-692-2124
1-703-746-4960 (fax)

Example input and processed speech files, a technical information bulletin,
and the official standard "Federal Standard 1016, Telecommunications:
Analog to Digital Conversion of Radio Voice by 4,800 bit/second Code
Excited Linear Prediction (CELP)" are included.

For U.S. FED-STD-1016 (4800 bps CELP) _realtime_ DSP code
and information about products using this code, contact:

John DellaMorte
DSP Software Engineering
165 Middlesex Tpk, Suite 206
Bedford, MA  01730
1-617-275-3733
1-617-275-4323 (fax)
dspse.bedford@channel1.com

DSP Software Engineering's code can run on a DSP Research's Tiger 30 board
(a PC board with a TMS320C3x and analog interface suited to development work)
or on Intellibit's AE2000 TMS320C31 based 3" by 2.5" card.

DSP Research                Intellibit
1095 E. Duane Ave.          P.O. Box 9785
Sunnyvale, CA  94086        McLean, VA  22102-0785
(408)773-1042               (703)442-4781
(408)736-3451 (fax)         (703)442-4784 (fax)
-- 
.............................................................................
; Joe Campbell  N3JBC  jpcampb@afterlife.ncsc.mil  74040.305@compuserve.com ;
; My opinions are mine!   Happiness = Reality - Expectations, Click & Clack ;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Newsgroups: comp.dsp
From: jjsmith@nyx.cs.du.edu (Jonathan J. Smith)
Subject: Re: AT&T DSP3210
X-Disclaimer: Nyx is a public access Unix system run by the University
	of Denver for the Denver community.  The University has neither
	control over nor responsibility for the opinions of users.
Organization: Nyx, Public Access Unix at U. of Denver Math/CS dept.
Date: Wed, 12 Aug 92 19:04:57 GMT

In article <1992Aug12.160517.11303@cgrg.ohio-state.edu> david@osc.edu (David Knight) writes:
>I'm YADSPN (yet another DSP novice) wanting to experiment.  The August issue
>of Byte gives a brief comparison of a few DSP chips available, one of which
>is the AT&T DSP3210.  I'm interested in finding out more about this chip but
>I don't know who/where to contact at AT&T.  (I let my fingers do the walking
>in the phone book, but alas, the local AT&T sales rep. didn't even know what
>an integrated circuit was, nor where in his own company he should look.  He
>didn't know AT&T made them.)
>
>I'd appreciate it if anyone could give me an address, phone #, and/or email
>address of whatever AT&T contact is appropriate.


I believe that same article also gives the companies phone number
at the back of the article, they should all be 800 numbers for contacting
the dsp departments.

Jonathan
From: tilden@casbah.acns.nwu.edu (Robert Tilden)
Subject: Speech detection/processing in presence of noise
Organization: Northwestern University, Evanston Illinois.
Date: Wed, 19 Aug 1992 15:22:49 GMT

Hi,
        I'm looking for references, suggestions and the like for extracting
speech from background noise. As a side issue, I'm also interested in
methods for detecting the presence of speech in an audio signal. I intend
to perform some level of audio processing of shortwave signals.

Thanks,
        Bob     tilden@nuhepl.phys.nwu.edu
From: lin@eecom.gatech.edu (Brian Lin)
Newsgroups: comp.dsp
Subject: Re: wavelet
Date: 17 Aug 92 15:17:09 GMT
Reply-To: lin@eecom.gatech.edu
Organization: School of EE, Georgia Institute of Technology, Atlanta, GA

In article 5E6@acsu.buffalo.edu, nugroho@acsu.buffalo.edu (Srihanto A. Nugroho) writes:
>Hi....
>I am a beginner in wavelet area.
>I want to know if there is a wavelet demo program (or wavelet transform program)
>that can be accessed by ftp ?
>Thanks,
>-anto-


Fast Wavelet Transform by Mac A Cody in the April 1992 issue of Dr. Dobb's Journal.
There is a demo program in C included with the article.

-Brian Lin
Newsgroups: comp.dsp,misc.forsale
From: 4389750@mcimail.com  (TMS320 Hotline)
Subject: Re: FORSALE: TI C30 C Complier & Assembler
Nntp-Software: PC/TCP NNTP
Organization: Texas Instruments Materials and Controls Group
Date: Fri, 21 Aug 1992 16:34:57 GMT

In article <1992Aug20.184820.3892@javelin.sim.es.com> bgeer@javelin.sim.es.com (Bob Geer) writes:

 >> vcb@irk.ugcs.caltech.edu (Vance Carl Bjorn) writes:
 >> 
 >> >I recently acquired the TI C30 C complier and assembler package
 >> >for MS-DOS based machines.  The project with which it was to be
 >> >....  I have not
 >> >sent in the registration card yet, so if there are any recent
 >> >updates, they would be sent free of charge.  
 >> 
 >> Are you sure of this?  TI is now charging an annual fee for the TMS320
 >> C compiler package update releases, at least for our Sun-based
 >> development package.
 >> 
 >> Also, what version do you have?

For the first year after purchase, updates are free of charge.  After one year,
a subcription fee must be paid in order to receive any furthur updates.
--
Regards,
TMS320 Hotline
(713)-274-2320       (voice)
(713)-274-2324       (fax)
(713)-274-2323       (BBS 300-2400,8,N,1)
From: niranjan@eng.cam.ac.uk (Mahesan Niranjan)
Newsgroups: comp.dsp
Subject: Re: High-level language/package for signal processing
Date: 13 Aug 92 20:58:29 GMT
Organization: Cambridge University Engineering Department, UK

In article <4272@inca.comlab.ox.ac.uk> ph@physiology.oxford.ac.uk (Patrick Haggard) writes:
>
>Hi. I'm new to this group, and I would have thought this was a FAQ,
>but I couldn't locate it, so:
>
>be 1D waveforms like EEGs, but I often want to work with many
>channels simultaneously.  I want to be able to view them on a
>SPARC2 running OpenWindows 2, and to interactive things like cursor
>movement etc.  However, I would also like an underlying highlevel
>language for doing things like:
>applying builtin or userdefined functions to signals: a=fft(b)
>arithmetic signal manipulation;  signal3=(signal_a+signal_b)/2

Buy MATLAB and the signal processing toolbox. Expensive, but real good.

niranjan
(just a happy user of matlab)
From: kemp@uiatma.atmos.uiuc.edu (John Kemp)
Newsgroups: comp.dsp
Subject: dd if=CDROM ?
Date: 12 Aug 92 13:31:37 GMT
Organization: University of Illinois, Urbana-Champaign

Is it possible, through Unix, to extract a sample from
a music CD-ROM?

We have a program that plays CD's on our Unix CD-ROM
drive.  It uses SCSI ioctl calls to send commands.
My guess is that the best bet would be to send some 
sort of ioctl to the drive asking it to return a certain
block or sector on the CD-ROM.  Possible?

Then, what kind of format is the data in?  How hard would
it then be to convert it into AIFF/uLAW or some other 
well know format?

This would be very useful information for me, and I 
would think, a wide number of others.  Any hints are 
appreciated.

--------  john kemp            (  (  )_  internet - johnkemp@uiuc.edu
  -----                       (  (   __)   
   ---    univ of illinois   (_ (   __)    bitnet - {uunet,convex}
   --     dept of atmos sci  .(____).               !uiucuxc!uiatma!kemp
   -      105 s gregory ave    ...          phone - (217) 333-6881
    -     urbana, il 61801    ...             fax - (217) 244-4393
Newsgroups: comp.dsp
From: c8827148@cc.newcastle.edu.au
Subject: Hofstetter Algorithm
Organization: University of Newcastle, AUSTRALIA
Date: Thu, 20 Aug 1992 00:01:16 GMT

HOFSTETTER'S algorithm is similar to the Parks-McClellan algorithm in
that it enables the design of equi-ripple FIR filters. The difference 
is that for Hofstetter's algorithm stop band attenuation is specified
rather than transition region width ans for the Parks-McClellan 
algorithm.


The problem is, I can't find any references to it. Can anybody help?

Erik de Castro Lopo,
University of Newcastle,
Australia

Newsgroups: comp.dsp
From: david@osc.edu (David Knight)
Subject: AT&T DSP3210
Organization: The Ohio Supercomputer Center
Date: Wed, 12 Aug 1992 16:05:17 GMT

I'm YADSPN (yet another DSP novice) wanting to experiment.  The August issue
of Byte gives a brief comparison of a few DSP chips available, one of which
is the AT&T DSP3210.  I'm interested in finding out more about this chip but
I don't know who/where to contact at AT&T.  (I let my fingers do the walking
in the phone book, but alas, the local AT&T sales rep. didn't even know what
an integrated circuit was, nor where in his own company he should look.  He
didn't know AT&T made them.)

I'd appreciate it if anyone could give me an address, phone #, and/or email
address of whatever AT&T contact is appropriate.
From: pteich@cayman.amd.com (Paul Teich)
Newsgroups: comp.dsp
Subject: Re: I860 fft performance
Date: 13 Aug 92 16:21:58 GMT
Reply-To: pteich@cayman.amd.com (Paul Teich)
Followup-To: comp.dsp
Organization: Advanced Micro Devices, Austin, TX

In article <12948@inews.intel.com> rrao@pima.intel.com (Ravi Rao) writes:
| In article <1992Aug6.125445.10704@nntp.nta.no> hlj@hal.nta.no writes:
| >
| >If the following two conditions are met:
| >
| >	1. All your data occupies less than 8 kbytes (such that all data
| >	   is in the cache or in registers)
| 		Obviously, you don't know about the existence of the nex-gen
| 		860 which has 16K of data/instr cache. There are some other
| 		instr enhancements like 'pfld.q' to make use of full b/w.
	Hmmm, seems like DSPs or RISC uPs which can efficiently access external
	memory (low access latencies and burst modes, >1 i/o bus for DSPs)
	would have an advantage over large *expensive* on-chip caches.  Just
	how expensive is this new gen 860? ;v)

| >	2. Your algorithm is such that it can be implemented in i860
| >	   pipelined mode (which is awkward to program)
| 		To get peak performance, you have to program most uP in 
| 		assembly language. There is no doubt that the i860 pipeline
| 		is hard to follow, but once you get the hang of it, its fairly
| 		easy..............
	860 programs must be hand-coded to get anywhere near stated
	performance.  Most RISC processors (the 860 is a VLIW uP, *not* RISC)
	perform quite well using compiled C.  For DSP, RISC can be easily hand
	programmed - the superscalar varieties even do the scheduling (with
	small scale optimizations) for you (unlike the 860).

Disclaimer:  I speak for myself and no one else - hell, I don't even work with
the Am29050 floating point RISC microprocessor any more.
--
Paul R. Teich                          pteich@cayman.AMD.COM
Advanced Micro Devices, Inc.           Direct 1-512-462-4268
5900 E. Ben White Blvd., MS 561        WATS   1-800-538-8450 x54268
Austin, Texas  78741                   FAX    1-512-462-4756
===============================================================================
Well do you ever get to feeling
	That the story's too damn real
		And in the present tense?		I. Anderson
Newsgroups: comp.dsp
From: barons@media-lab.media.mit.edu (Barry Arons)
Subject: Re: mu-law encoding - definition?
Keywords: mu-law
Organization: M.I.T. Media Laboratory
Date: Sat, 22 Aug 1992 22:47:09 GMT

Sun has already done all the hard work for you.  A set of macros is provided for converting between u-law and linear data.  Do a "man  audio_ulaw2linear" on your SparcStation.

Barry.
Newsgroups: comp.dsp,misc.forsale
From: bgeer@javelin.sim.es.com (Bob Geer)
Subject: Re: FORSALE: TI C30 C Complier & Assembler 
Keywords: C30 C Complier
Reply-To: bgeer@javelin.sim.es.com
Organization: Evans & Sutherland Computer Corporation
Date: Thu, 20 Aug 1992 18:48:20 GMT

vcb@irk.ugcs.caltech.edu (Vance Carl Bjorn) writes:

>I recently acquired the TI C30 C complier and assembler package
>for MS-DOS based machines.  The project with which it was to be
>....  I have not
>sent in the registration card yet, so if there are any recent
>updates, they would be sent free of charge.  

Are you sure of this?  TI is now charging an annual fee for the TMS320
C compiler package update releases, at least for our Sun-based
development package.

Also, what version do you have?
-- 
<> Bob `Bear' Geer <>   bgeer@beorn.sim.es.com     (this *should* work)   <>
<>     cola-zombie <>   speaking only for myself, one of my many tricks   <>
<> Salt Lake City, <>    "We must strive to be more than we are, Lal."    <>
<>          Ootah  <>           -- Cmdr. Data, learning schmaltz          <>
From: malcolm@Apple.COM (Malcolm Slaney)
Newsgroups: comp.dsp
Subject: Re: I860 fft performance
Date: 12 Aug 92 22:16:32 GMT
Organization: Apple Computer Inc, Cupertino, CA

In article <12948@inews.intel.com> rrao@pima.intel.com (Ravi Rao) writes:
>		To get peak performance, you have to program most uP in 
>		assembly language. There is no doubt that the i860 pipeline
>		is hard to follow, but once you get the hang of it, its fairly
>		easy..............
That's pretty lame.  Most RISC chips with the latest compiler technology
can do better than most assembly langauge programmers.....the compilers
don't do anything that humans can't do but it's a lot easier for a good
compiler to reuse registers and explore all the different possibilities.

Has anybody compared current RISC chips (R4000, HP's new machine, RS6000,
DEC's alpha) to the DSP chips?  DSP chips might be cheaper since you don't
need fancy memory management but it no longer seems clear to me that 
DSP chips are that much faster.

								Malcolm
From: ph@physiology.oxford.ac.uk (Patrick Haggard)
Newsgroups: comp.dsp
Subject: Re: National Instruments LabView
Date: 19 Aug 92 10:48:13 GMT
Organization: Physiology Department, Oxford University, Oxford, UK.


No particular experience of dsp, but LabView normally pays for 
itself in time-savings, because you don't need to be a highly
experienced hacker to run it.
There's a mailing list:
info-labview-request@caesar.pica.army.mil
will get you on it, I think
Patrick
From: bkwilli@afterlife.ncsc.mil (Bryan Williams)
Newsgroups: comp.dsp
Subject: Re: Newbie book recommendations?
Date: 14 Aug 92 20:48:41 GMT
Organization: The Great Beyond

re: C Language Algorithms for DSP by Embree & Kimble
 
I have this book. It is fairly decent in its coverage of various algorithms but
I am no PhD in DSP so I'm probably not a good critic. Some of the discussions
are rather glossed-over, but in general, where there are more than one way to 
do something, they choose the best way to implement the code. 
 
It is fairly useful if you want to know how to program your own routines because
most books leave you short beyond the theory of DSP.
 
 
The book is also affordable, ran me $55. The other text I was contemplating was
about $160!!
Newsgroups: comp.dsp