From jrobertson@mindspring.com Fri Oct 07 22:04:33 1994 Path: ashpoly!cascade!bigsur!mindspring!jrobertson From: jrobertson@mindspring.com (Jens Robertson) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Oct07.220433.8038@mindspring.com> Date: Fri, 07 Oct 1994 22:04:33 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 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. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Jens Robertson Tape trading list upon request. SASE required for international mail. From nito@clari.net Sun Oct 09 21:14:33 1994 Path: ashpoly!cascade!brgate!saturno!clari!nito From: nito@clari.net (Nadine Ito) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Oct09.211433.7107@clari.net> Date: Sun, 09 Oct 1994 21:14:33 GMT References: <1994Oct07.220433.8038@mindspring.com> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Oct07.220433.8038@mindspring.com>, jrobertson@mindspring.com (Jens Robertson) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Nadine Ito Tape trading list upon request. SASE required for international mail. From vtanaka@demon.co.uk Tue Oct 11 19:19:33 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!vtanaka From: vtanaka@demon.co.uk (Valeria Tanaka) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Oct11.191933.2673@demon.co.uk> Date: Tue, 11 Oct 1994 19:19:33 GMT References: <1994Oct07.220433.8038@mindspring.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Oct07.220433.8038@mindspring.com>, jrobertson@mindspring.com (Jens Robertson) 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. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Valeria Tanaka US Robotics Courier V.34 @ 28,800 bps "Measuring a record you own is listening, not piracy." From astewart@pipeline.com Thu Oct 13 14:35:33 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!pipeline!astewart From: astewart@pipeline.com (Andrei Stewart) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Oct13.143533.5567@pipeline.com> Date: Thu, 13 Oct 1994 14:35:33 GMT References: <1994Oct07.220433.8038@mindspring.com> <1994Oct11.191933.2673@demon.co.uk> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Oct11.191933.2673@demon.co.uk>, vtanaka@demon.co.uk (Valeria Tanaka) 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. -- Andrei Stewart "Extraordinary claims require extraordinary spectra." Commodore Amiga 500 (1MB OCS) / AmigaOS 3.1 From bbrennan@u-tokyo.ac.jp Sat Oct 15 03:00:33 1994 Path: ashpoly!cascade!brgate!saturno!u-tokyo!bbrennan From: bbrennan@u-tokyo.ac.jp (Bill Brennan) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Oct15.030033.1913@u-tokyo.ac.jp> Date: Sat, 15 Oct 1994 03:00:33 GMT References: <1994Oct07.220433.8038@mindspring.com> <1994Oct11.191933.2673@demon.co.uk> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Oct11.191933.2673@demon.co.uk>, vtanaka@demon.co.uk (Valeria Tanaka) 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... -- Bill Brennan Hayes Optima 288 @ 33,600 bps "The carrier frequency does not drift by accident."