From hjohansson@pipeline.com Sun Jan 22 08:39:48 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!pipeline!hjohansson From: hjohansson@pipeline.com (Heather Johansson) Newsgroups: comp.sys.m68k Subject: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jan22.083948.4432@pipeline.com> Date: Sun, 22 Jan 1995 08:39:48 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com 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. -- Heather Johansson "Measuring a record you own is listening, not piracy." Sun 3/60 (SunOS 4.1.1) / SunOS 4.1.4 From ssanchez@titech.ac.jp Mon Jan 23 21:43:48 1995 Path: ashpoly!cascade!mxgate!coyoacan!titech!ssanchez From: ssanchez@titech.ac.jp (Sergei Sánchez) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jan23.214348.1912@titech.ac.jp> Date: Mon, 23 Jan 1995 21:43:48 GMT References: <1995Jan22.083948.4432@pipeline.com> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jan22.083948.4432@pipeline.com>, hjohansson@pipeline.com (Heather 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'. -- === Sergei Sánchez === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "A soul is not exclusive to biology."