From blindqvist@ox.ac.uk Fri Apr 05 03:43:03 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!ox!blindqvist From: blindqvist@ox.ac.uk (Brian Lindqvist) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Apr05.034303.4393@ox.ac.uk> Date: Fri, 05 Apr 1996 03:43:03 GMT Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 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. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Brian Lindqvist "Hardware is temporary. The signal survives." Decstation 5000/200 / SunOS 4.1.4 From nivanov@cern.ch Sun Apr 07 02:41:03 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!cern!nivanov From: nivanov@cern.ch (Natalia Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Apr07.024103.8587@cern.ch> Date: Sun, 07 Apr 1996 02:41:03 GMT References: <1996Apr05.034303.4393@ox.ac.uk> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Apr05.034303.4393@ox.ac.uk>, blindqvist@ox.ac.uk (Brian Lindqvist) 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'. PGP Public key available via finger or upon request. -- Natalia Ivanov "5 sigma is a discovery. 7 is a question." NeXTstation Turbo Color / NEXTSTEP 3.3 From mandersson@purdue.edu Mon Apr 08 03:03:03 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!purdue!mandersson From: mandersson@purdue.edu (Marta Andersson) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Apr08.030303.8119@purdue.edu> Date: Mon, 08 Apr 1996 03:03:03 GMT References: <1996Apr05.034303.4393@ox.ac.uk> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Apr05.034303.4393@ox.ac.uk>, blindqvist@ox.ac.uk (Brian Lindqvist) writes: > 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. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... -- Marta Andersson Tape trading list upon request. SASE required for international mail. From csokolov@ox.ac.uk Mon Apr 08 19:40:03 1996 Path: ashpoly!cascade!mxgate!coyoacan!ox!csokolov From: csokolov@ox.ac.uk (Callum Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Apr08.194003.3626@ox.ac.uk> Date: Mon, 08 Apr 1996 19:40:03 GMT References: <1996Apr05.034303.4393@ox.ac.uk> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Apr05.034303.4393@ox.ac.uk>, blindqvist@ox.ac.uk (Brian Lindqvist) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Callum Sokolov "Measuring a record you own is listening, not piracy." Acorn RiscPC 600 / SunOS 4.1.4