From gweber@uu.net Sat Oct 28 04:37:20 1995 Path: ashpoly!cascade!mxgate!coyoacan!uu!gweber From: gweber@uu.net (Graham Weber) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct28.043720.2408@uu.net> Date: Sat, 28 Oct 1995 04:37:20 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. 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. -- Graham Weber "Hold for relay." Pentium 90 (OS/2 Warp) / FreeBSD 2.1 From ysanchez@cam.ac.uk Sat Oct 28 17:39:20 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cam!ysanchez From: ysanchez@cam.ac.uk (Yuki Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct28.173920.5898@cam.ac.uk> Date: Sat, 28 Oct 1995 17:39:20 GMT References: <1995Oct28.043720.2408@uu.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Oct28.043720.2408@uu.net>, gweber@uu.net (Graham Weber) 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'. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Yuki Sánchez Tape trading list upon request. SASE required for international mail. From dkowalski@kth.se Mon Oct 30 01:46:20 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!kth!dkowalski From: dkowalski@kth.se (Dmitri Kowalski) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct30.014620.6766@kth.se> Date: Mon, 30 Oct 1995 01:46:20 GMT References: <1995Oct28.043720.2408@uu.net> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Oct28.043720.2408@uu.net>, gweber@uu.net (Graham Weber) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Top-posters will be placed in my ~/.killfile without notice. -- Dmitri Kowalski | dkowalski@kth.se PGP Key fingerprint: A57D A199 91E8 8369 "Keep the channels open." From mpopov@mit.edu Mon Oct 30 10:16:20 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mit!mpopov From: mpopov@mit.edu (Marta Popov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct30.101620.4197@mit.edu> Date: Mon, 30 Oct 1995 10:16:20 GMT References: <1995Oct28.043720.2408@uu.net> <1995Oct30.014620.6766@kth.se> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Oct30.014620.6766@kth.se>, dkowalski@kth.se (Dmitri Kowalski) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... -- Marta Popov *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From akarlsson@pacbell.net Tue Oct 31 10:49:20 1995 Path: ashpoly!cascade!bigsur!pacbell!akarlsson From: akarlsson@pacbell.net (Andrei Karlsson) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Oct31.104920.7191@pacbell.net> Date: Tue, 31 Oct 1995 10:49:20 GMT References: <1995Oct28.043720.2408@uu.net> <1995Oct30.014620.6766@kth.se> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1995Oct30.014620.6766@kth.se>, dkowalski@kth.se (Dmitri Kowalski) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. > Top-posters will be placed in my ~/.killfile without notice. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Andrei Karlsson "We don't sign stars. We build them." 486DX2/66 (Linux 1.2.13) / NEXTSTEP 3.3