From spark@earthlink.net Fri Jul 26 12:18:13 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!earthlink!spark From: spark@earthlink.net (Seo-yeon Park) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul26.121813.6660@earthlink.net> Date: Fri, 26 Jul 1996 12:18:13 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Seo-yeon Park Opinions expressed are solely my own and not those of EarthLink Network. ------------------------------------------------------------ From epetrov@cam.ac.uk Sun Jul 28 02:39:13 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cam!epetrov From: epetrov@cam.ac.uk (Emi Petrov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul28.023913.5335@cam.ac.uk> Date: Sun, 28 Jul 1996 02:39:13 GMT References: <1996Jul26.121813.6660@earthlink.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996Jul26.121813.6660@earthlink.net>, spark@earthlink.net (Seo-yeon Park) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Emi Petrov -- University of Cambridge Computer Laboratory "The hatch is open. Is anyone listening?" From jperez@netcom.com Tue Jul 30 03:21:13 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!netcom!jperez From: jperez@netcom.com (Julien Pérez) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul30.032113.4033@netcom.com> Date: Tue, 30 Jul 1996 03:21:13 GMT References: <1996Jul26.121813.6660@earthlink.net> <1996Jul28.023913.5335@cam.ac.uk> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jul28.023913.5335@cam.ac.uk>, epetrov@cam.ac.uk (Emi Petrov) 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. -- Julien Pérez *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From rdubois@illinois.edu Wed Jul 31 00:42:13 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!rdubois From: rdubois@illinois.edu (Raj Dubois) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jul31.004213.5730@illinois.edu> Date: Wed, 31 Jul 1996 00:42:13 GMT References: <1996Jul26.121813.6660@earthlink.net> <1996Jul28.023913.5335@cam.ac.uk> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Jul28.023913.5335@cam.ac.uk>, epetrov@cam.ac.uk (Emi Petrov) 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. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Raj Dubois Tape trading list upon request. SASE required for international mail.