From lito@panix.com Thu Aug 04 14:15:15 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!panix!lito From: lito@panix.com (Lisa Ito) Newsgroups: comp.sys.m68k Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug04.141515.3765@panix.com> Date: Thu, 04 Aug 1994 14:15:15 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] 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. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Lisa Ito Opinions expressed are solely my own and not those of Public Access Unix of New York. ------------------------------------------------------------ From ssuzuki@titech.ac.jp Sat Aug 06 08:02:15 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!titech!ssuzuki From: ssuzuki@titech.ac.jp (Sun-mi Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug06.080215.6143@titech.ac.jp> Date: Sat, 06 Aug 1994 08:02:15 GMT References: <1994Aug04.141515.3765@panix.com> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Aug04.141515.3765@panix.com>, lito@panix.com (Lisa Ito) 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'. -- Sun-mi Suzuki Opinions expressed are solely my own and not those of Tokyo Institute of Technology Computer Centre. ------------------------------------------------------------ From lmoreno@rwth-aachen.de Sun Aug 07 07:42:15 1994 Path: ashpoly!cascade!mxgate!coyoacan!rwth-aachen!lmoreno From: lmoreno@rwth-aachen.de (Lars Moreno) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Aug07.074215.2766@rwth-aachen.de> Date: Sun, 07 Aug 1994 07:42:15 GMT References: <1994Aug04.141515.3765@panix.com> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Aug04.141515.3765@panix.com>, lito@panix.com (Lisa Ito) 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. -- Lars Moreno *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0