From mmoreno@uu.net Mon Nov 20 00:26:19 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!uu!mmoreno From: mmoreno@uu.net (Mateo Moreno) Newsgroups: comp.sys.m68k Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Nov20.002619.6102@uu.net> Date: Mon, 20 Nov 1995 00:26:19 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. 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. -- Mateo Moreno Tape trading list upon request. SASE required for international mail. From tkim@demon.co.uk Mon Nov 20 22:50:19 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!demon!tkim From: tkim@demon.co.uk (Tyler Kim) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Nov20.225019.8490@demon.co.uk> Date: Mon, 20 Nov 1995 22:50:19 GMT References: <1995Nov20.002619.6102@uu.net> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Nov20.002619.6102@uu.net>, mmoreno@uu.net (Mateo Moreno) 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. -- === Tyler Kim === Dept of Electrical Engineering, Demon Internet Services UK "We don't sign stars. We build them." From lsokolov@cam.ac.uk Thu Nov 23 01:21:19 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cam!lsokolov From: lsokolov@cam.ac.uk (Lisa Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Nov23.012119.4332@cam.ac.uk> Date: Thu, 23 Nov 1995 01:21:19 GMT References: <1995Nov20.002619.6102@uu.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Nov20.002619.6102@uu.net>, mmoreno@uu.net (Mateo Moreno) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Lisa Sokolov Tape trading list upon request. SASE required for international mail. From mreyes@panix.com Fri Nov 24 12:24:19 1995 Path: ashpoly!cascade!transat!ukc!fennimore!panix!mreyes From: mreyes@panix.com (Marisol Reyes) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Nov24.122419.7188@panix.com> Date: Fri, 24 Nov 1995 12:24:19 GMT References: <1995Nov20.002619.6102@uu.net> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Nov20.002619.6102@uu.net>, mmoreno@uu.net (Mateo Moreno) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Marisol Reyes Zyxel U-1496E @ 19,200 bps "We don't sign stars. We build them."