From sjohansson@inria.fr Wed Jul 19 06:47:54 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!inria!sjohansson From: sjohansson@inria.fr (Sven Johansson) Newsgroups: comp.sys.m68k Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jul19.064754.1225@inria.fr> Date: Wed, 19 Jul 1995 06:47:54 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr 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. -- Sven Johansson *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From agarcia@pacbell.net Thu Jul 20 02:08:54 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!agarcia From: agarcia@pacbell.net (Amy García) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jul20.020854.3823@pacbell.net> Date: Thu, 20 Jul 1995 02:08:54 GMT References: <1995Jul19.064754.1225@inria.fr> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Jul19.064754.1225@inria.fr>, sjohansson@inria.fr (Sven Johansson) 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'. If you are posting from AOL, please read RFC 1036 before posting again. -- Amy García *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From jramirez@cam.ac.uk Fri Jul 21 07:04:54 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!cam!jramirez From: jramirez@cam.ac.uk (Ji-woo Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jul21.070454.8921@cam.ac.uk> Date: Fri, 21 Jul 1995 07:04:54 GMT References: <1995Jul19.064754.1225@inria.fr> <1995Jul20.020854.3823@pacbell.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1995Jul20.020854.3823@pacbell.net>, agarcia@pacbell.net (Amy García) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. > If you are posting from AOL, please read RFC 1036 before posting again. 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. -- === Ji-woo Ramírez === Dept of Electrical Engineering, University of Cambridge Computer Laboratory "The carrier frequency does not drift by accident."