From fsantos@pacbell.net Sun Jul 24 15:50:45 1994 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!fsantos From: fsantos@pacbell.net (Freya Santos) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul24.155045.4538@pacbell.net> Date: Sun, 24 Jul 1994 15:50:45 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 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. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Freya Santos Tape trading list upon request. SASE required for international mail. From mpopov@pacbell.net Mon Jul 25 14:07:45 1994 Path: ashpoly!cascade!brgate!saturno!pacbell!mpopov From: mpopov@pacbell.net (Marta Popov) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul25.140745.9289@pacbell.net> Date: Mon, 25 Jul 1994 14:07:45 GMT References: <1994Jul24.155045.4538@pacbell.net> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jul24.155045.4538@pacbell.net>, fsantos@pacbell.net (Freya Santos) 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'. -- Marta Popov -- Pacific Bell Internet Services "Tape doesn't lie at 02:14. Ears do."