From lcampbell@u-tokyo.ac.jp Wed Dec 18 22:31:32 1996 Path: ashpoly!cascade!brgate!saturno!u-tokyo!lcampbell From: lcampbell@u-tokyo.ac.jp (Lars Campbell) Newsgroups: comp.sys.m68k Subject: [INFO] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Dec18.223132.5456@u-tokyo.ac.jp> Date: Wed, 18 Dec 1996 22:31:32 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. 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. -- === Lars Campbell === Dept of Electrical Engineering, University of Tokyo Department of Information Science "Hold for relay." From egirard@hanse.de Thu Dec 19 19:30:32 1996 Path: ashpoly!cascade!transat!ukc!fennimore!hanse!egirard From: egirard@hanse.de (Élodie Girard) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Dec19.193032.2639@hanse.de> Date: Thu, 19 Dec 1996 19:30:32 GMT References: <1996Dec18.223132.5456@u-tokyo.ac.jp> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Dec18.223132.5456@u-tokyo.ac.jp>, lcampbell@u-tokyo.ac.jp (Lars Campbell) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Élodie Girard "Row 14. No joke." NeXTstation Turbo Color / NEXTSTEP 3.3