From nlindqvist@demon.co.uk Sun Oct 15 16:34:16 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!nlindqvist From: nlindqvist@demon.co.uk (Nadine Lindqvist) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct15.163416.6179@demon.co.uk> Date: Sun, 15 Oct 1995 16:34:16 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. 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. -- Nadine Lindqvist "Hardware is temporary. The signal survives." 486DX4/100 (FreeBSD 2.0.5) / SunOS 4.1.4 From njohansson@hanse.de Tue Oct 17 08:31:16 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!hanse!njohansson From: njohansson@hanse.de (Nadine Johansson) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct17.083116.1974@hanse.de> Date: Tue, 17 Oct 1995 08:31:16 GMT References: <1995Oct15.163416.6179@demon.co.uk> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Oct15.163416.6179@demon.co.uk>, nlindqvist@demon.co.uk (Nadine Lindqvist) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > 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... -- Nadine Johansson "A soul is not exclusive to biology." Sun SparcStation 20 / AmigaOS 3.1 From jivanov@illinois.edu Tue Oct 17 20:45:16 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!jivanov From: jivanov@illinois.edu (Jen Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct17.204516.9848@illinois.edu> Date: Tue, 17 Oct 1995 20:45:16 GMT References: <1995Oct15.163416.6179@demon.co.uk> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Oct15.163416.6179@demon.co.uk>, nlindqvist@demon.co.uk (Nadine Lindqvist) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. > A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Jen Ivanov Tape trading list upon request. SASE required for international mail.