From enilsson@ox.ac.uk Mon Jul 10 03:07:08 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!ox!enilsson
From: enilsson@ox.ac.uk (Elaine Nilsson)
Newsgroups: comp.sys.m68k
Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul10.030708.7418@ox.ac.uk>
Date: Mon, 10 Jul 1995 03:07:08 GMT
Organization: Oxford University Computing Laboratory
NNTP-Posting-Host: ox.ac.uk
X-Newsreader: Netscape 1.1N
Lines: 11

Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor.
The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise.

Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip.

-- 
Elaine Nilsson | enilsson@ox.ac.uk
PGP Key fingerprint: AC55 7D4A 01CB D187
"Keep the channels open."

From kduarte@pipeline.com Mon Jul 10 04:02:08 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pipeline!kduarte
From: kduarte@pipeline.com (Kenji Duarte)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul10.040208.8750@pipeline.com>
Date: Mon, 10 Jul 1995 04:02:08 GMT
References: <1995Jul10.030708.7418@ox.ac.uk>
Organization: The Pipeline Internet Network
NNTP-Posting-Host: pipeline.com
X-Newsreader: WinVN 0.99.5
Lines: 9

In article <1995Jul10.030708.7418@ox.ac.uk>, enilsson@ox.ac.uk (Elaine Nilsson) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.

The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition.

-- 
Kenji Duarte | kduarte@pipeline.com
PGP Key fingerprint: BFA1 C811 FAA9 CF80
"Keep the channels open."

From rgirard@titech.ac.jp Mon Jul 10 11:10:08 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!rgirard
From: rgirard@titech.ac.jp (Rodrigo Girard)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1995Jul10.111008.8294@titech.ac.jp>
Date: Mon, 10 Jul 1995 11:10:08 GMT
References: <1995Jul10.030708.7418@ox.ac.uk>
Organization: Tokyo Institute of Technology Computer Centre
NNTP-Posting-Host: titech.ac.jp
X-Newsreader: NewsWatcher 2.0b24
Lines: 9

In article <1995Jul10.030708.7418@ox.ac.uk>, enilsson@ox.ac.uk (Elaine Nilsson) writes:
> Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec.
> A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor.

Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market.

-- 
Rodrigo Girard -- Tokyo Institute of Technology Computer Centre
"In theory there is no difference between theory and practice."