From fpopov@utexas.edu Fri Apr 15 10:07:41 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!fpopov From: fpopov@utexas.edu (Freya Popov) Newsgroups: comp.sys.m68k Subject: [INFO] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Apr15.100741.1589@utexas.edu> Date: Fri, 15 Apr 1994 10:07:41 GMT Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Freya Popov | fpopov@utexas.edu PGP Key fingerprint: 04D1 70D0 8592 3B52 "Keep the channels open." From knilsson@netcom.com Sat Apr 16 04:15:41 1994 Path: ashpoly!cascade!brgate!saturno!netcom!knilsson From: knilsson@netcom.com (Kirsty Nilsson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Apr16.041541.8082@netcom.com> Date: Sat, 16 Apr 1994 04:15:41 GMT References: <1994Apr15.100741.1589@utexas.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Apr15.100741.1589@utexas.edu>, fpopov@utexas.edu (Freya Popov) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Kirsty Nilsson *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From jivanov@uu.net Sun Apr 17 01:43:41 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uu!jivanov From: jivanov@uu.net (Ji-woo Ivanov) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Apr17.014341.4418@uu.net> Date: Sun, 17 Apr 1994 01:43:41 GMT References: <1994Apr15.100741.1589@utexas.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Apr15.100741.1589@utexas.edu>, fpopov@utexas.edu (Freya Popov) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Ji-woo Ivanov "Marcus is not one man." Commodore Amiga 500 (1MB OCS) / TOS 4.04