From yivanov@demon.co.uk Thu Jan 13 03:32:32 1994 Path: ashpoly!cascade!mxgate!coyoacan!demon!yivanov From: yivanov@demon.co.uk (Yuki Ivanov) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan13.033232.8594@demon.co.uk> Date: Thu, 13 Jan 1994 03:32:32 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. 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. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Yuki Ivanov | yivanov@demon.co.uk PGP Key fingerprint: C93D 5041 88B2 2970 "Keep the channels open." From achoi@illinois.edu Fri Jan 14 03:30:32 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!achoi From: achoi@illinois.edu (Astrid Choi) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan14.033032.3053@illinois.edu> Date: Fri, 14 Jan 1994 03:30:32 GMT References: <1994Jan13.033232.8594@demon.co.uk> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Jan13.033232.8594@demon.co.uk>, yivanov@demon.co.uk (Yuki Ivanov) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Astrid Choi *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From tduarte@cmu.edu Sat Jan 15 18:31:32 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cmu!tduarte From: tduarte@cmu.edu (Thiago Duarte) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan15.183132.3295@cmu.edu> Date: Sat, 15 Jan 1994 18:31:32 GMT References: <1994Jan13.033232.8594@demon.co.uk> <1994Jan14.033032.3053@illinois.edu> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1994Jan14.033032.3053@illinois.edu>, achoi@illinois.edu (Astrid Choi) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... -- Thiago Duarte Tape trading list upon request. SASE required for international mail. From rgirard@netcom.com Sat Jan 15 20:52:32 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!rgirard From: rgirard@netcom.com (Renata Girard) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan15.205232.4622@netcom.com> Date: Sat, 15 Jan 1994 20:52:32 GMT References: <1994Jan13.033232.8594@demon.co.uk> <1994Jan14.033032.3053@illinois.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jan14.033032.3053@illinois.edu>, achoi@illinois.edu (Astrid Choi) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Renata Girard | rgirard@netcom.com PGP Key fingerprint: 1B7B 381E DC72 7DA5 "Keep the channels open."