Article View: comp.sys.dec
Article #4358Re: "Are DSP Chips Obsolete?" (was re: Alpha fft performance)
From: Gints Klimanis
Date: Thu, 21 Jan 1993 22:56
Date: Thu, 21 Jan 1993 22:56
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In article <1jn4dn$lbf@agate.berkeley.edu>, jbuck@forney.berkeley.edu (Joe Buck) writes: |> I would have let this one drop, but since a DEC employee wants to |> bring it up again ... |> |> In article <1993Jan21.172924.1979@rdg.dec.com> jpt@salama.fno.dec.com |> (Jari Tavi) writes: |> >As a beginning, my personal opinion: I don't think that DSP's are |> >obsolete. |> |> Good for you. |> | |> If you're after getting the job done with products that are |> available |> today, contact Motorola, Texas Instruments, Analog Devices, or any |> of |> a half dozen other companies who understand the DSP market and don't |> go around publishing poorly conceived papers like "Are DSP Chips |> Obsolete?". After reading the DEC paper, I believe the title was ill chosen. I also observed a sleezy and common trend: Comparing a 1993 Alpha to a 1987 TI TMS320C30? Shame. 40 MHz C30's were available in 1991. However, I argue that that paper was reasonably conceived. There is a need to educate the signal processing community that DSP algorithms can be developed on a general purpose CPU using C and some of the code will execute in real-time. I've spoken to several customers asking about plug-in DSP cards just so they could do a handful of 2nd order IIR's. DSP from C code on the host CPU? Wow. When Silicon Graphics introduced the Indigo workstation, I heard hundred's of astonished remarks about the beautiful color waterfall 3D FFT audio demo: "I've never seen anything like that. What??? You're not using the 56001 to do the FFT?" Certainly, the price/performance ratio of DSP's and RISC workstations differ by roughly an order of magnitude. However, mature RISC workstations are wonderful DSP development platforms.
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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!sgigate!sgi!fido!prophet.esd.sgi.com!gints From: gints@prophet.esd.sgi.com (Gints Klimanis) Newsgroups: comp.sys.dec,comp.dsp Subject: Re: "Are DSP Chips Obsolete?" (was re: Alpha fft performance) Message-ID: <1jn9mlINNgh5@fido.asd.sgi.com> Date: 21 Jan 93 22:56:21 GMT References: <1993Jan5.134034.22043@ircam.fr> <1iknq6$6vt@agate.berkeley.edu> <1993Jan21.172924.1979@rdg.dec.com> <1jn4dn$lbf@agate.berkeley.edu> Organization: Silicon Graphics, Inc. Lines: 41 NNTP-Posting-Host: prophet.esd.sgi.com