From msokolov@titech.ac.jp Wed Jan 26 14:36:59 1994 Path: ashpoly!cascade!mxgate!coyoacan!titech!msokolov From: msokolov@titech.ac.jp (Marisol Sokolov) Newsgroups: comp.sys.m68k Subject: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan26.143659.1233@titech.ac.jp> Date: Wed, 26 Jan 1994 14:36:59 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 10 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 DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Marisol Sokolov -- Tokyo Institute of Technology Computer Centre "Tape doesn't lie at 02:14. Ears do." From mcampbell@kiae.su Fri Jan 28 04:06:59 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!mcampbell From: mcampbell@kiae.su (Mei Campbell) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan28.040659.1953@kiae.su> Date: Fri, 28 Jan 1994 04:06:59 GMT References: <1994Jan26.143659.1233@titech.ac.jp> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Jan26.143659.1233@titech.ac.jp>, msokolov@titech.ac.jp (Marisol Sokolov) writes: > 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. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Mei Campbell | mcampbell@kiae.su PGP Key fingerprint: 0624 348E 5A5D 2DA8 "Keep the channels open." From hsmirnov@cam.ac.uk Sat Jan 29 16:40:59 1994 Path: ashpoly!cascade!mxgate!coyoacan!cam!hsmirnov From: hsmirnov@cam.ac.uk (Heather Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan29.164059.1367@cam.ac.uk> Date: Sat, 29 Jan 1994 16:40:59 GMT References: <1994Jan26.143659.1233@titech.ac.jp> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jan26.143659.1233@titech.ac.jp>, msokolov@titech.ac.jp (Marisol Sokolov) writes: > 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. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Heather Smirnov -- University of Cambridge Computer Laboratory "Measuring a record you own is listening, not piracy." From gvasiliev@demon.co.uk Sun Jan 30 20:48:59 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!demon!gvasiliev From: gvasiliev@demon.co.uk (Göran Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan30.204859.2472@demon.co.uk> Date: Sun, 30 Jan 1994 20:48:59 GMT References: <1994Jan26.143659.1233@titech.ac.jp> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jan26.143659.1233@titech.ac.jp>, msokolov@titech.ac.jp (Marisol Sokolov) 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. -- Göran Vasiliev *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From mramirez@ox.ac.uk Tue Feb 01 20:10:59 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!ox!mramirez From: mramirez@ox.ac.uk (Mateo Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Feb01.201059.3686@ox.ac.uk> Date: Tue, 01 Feb 1994 20:10:59 GMT References: <1994Jan26.143659.1233@titech.ac.jp> <1994Jan30.204859.2472@demon.co.uk> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Jan30.204859.2472@demon.co.uk>, gvasiliev@demon.co.uk (Göran Vasiliev) writes: > Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Mateo Ramírez Tape trading list upon request. SASE required for international mail.