From bfischer@earthlink.net Sat Mar 04 06:22:32 1995 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!bfischer From: bfischer@earthlink.net (Bruno Fischer) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar04.062232.5203@earthlink.net> Date: Sat, 04 Mar 1995 06:22:32 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] 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 DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- === Bruno Fischer === Dept of Electrical Engineering, EarthLink Network "A soul is not exclusive to biology." From tnovak@rwth-aachen.de Mon Mar 06 06:50:32 1995 Path: ashpoly!cascade!bigsur!rwth-aachen!tnovak From: tnovak@rwth-aachen.de (Tomas Novak) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar06.065032.1278@rwth-aachen.de> Date: Mon, 06 Mar 1995 06:50:32 GMT References: <1995Mar04.062232.5203@earthlink.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar04.062232.5203@earthlink.net>, bfischer@earthlink.net (Bruno Fischer) 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. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... -- Tomas Novak Tape trading list upon request. SASE required for international mail. From emartinez@ox.ac.uk Tue Mar 07 16:48:32 1995 Path: ashpoly!cascade!brgate!saturno!ox!emartinez From: emartinez@ox.ac.uk (Emi Martínez) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar07.164832.5865@ox.ac.uk> Date: Tue, 07 Mar 1995 16:48:32 GMT References: <1995Mar04.062232.5203@earthlink.net> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Mar04.062232.5203@earthlink.net>, bfischer@earthlink.net (Bruno Fischer) 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'. Top-posters will be placed in my ~/.killfile without notice. -- Emi Martínez "The carrier frequency does not drift by accident." Sun SparcStation 20 / FreeBSD 2.1 From tmoreno@panix.com Wed Mar 08 18:16:32 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!panix!tmoreno From: tmoreno@panix.com (Tyler Moreno) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Mar08.181632.9885@panix.com> Date: Wed, 08 Mar 1995 18:16:32 GMT References: <1995Mar04.062232.5203@earthlink.net> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar04.062232.5203@earthlink.net>, bfischer@earthlink.net (Bruno Fischer) 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. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Tyler Moreno -- Public Access Unix of New York "When every node is whole, the channel opens."