From yokonkwo@clari.net Sat Aug 17 10:24:09 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!clari!yokonkwo From: yokonkwo@clari.net (Yuki Okonkwo) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug17.102409.3193@clari.net> Date: Sat, 17 Aug 1996 10:24:09 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. 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. -- Yuki Okonkwo | yokonkwo@clari.net PGP Key fingerprint: 0974 6107 970D BFFD "Keep the channels open." From mcampbell@uu.net Mon Aug 19 08:29:09 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uu!mcampbell From: mcampbell@uu.net (Min-jun Campbell) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug19.082909.7382@uu.net> Date: Mon, 19 Aug 1996 08:29:09 GMT References: <1996Aug17.102409.3193@clari.net> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Aug17.102409.3193@clari.net>, yokonkwo@clari.net (Yuki Okonkwo) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Min-jun Campbell Tape trading list upon request. SASE required for international mail. From mvasiliev@stanford.edu Tue Aug 20 13:06:09 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!stanford!mvasiliev From: mvasiliev@stanford.edu (Morag Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug20.130609.5377@stanford.edu> Date: Tue, 20 Aug 1996 13:06:09 GMT References: <1996Aug17.102409.3193@clari.net> <1996Aug19.082909.7382@uu.net> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Aug19.082909.7382@uu.net>, mcampbell@uu.net (Min-jun Campbell) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Morag Vasiliev Zyxel U-1496E @ 9600 Telebit bps "The hatch is open. Is anyone listening?" From mchoi@panix.com Thu Aug 22 03:48:09 1996 Path: ashpoly!cascade!bigsur!panix!mchoi From: mchoi@panix.com (Mikhail Choi) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug22.034809.4760@panix.com> Date: Thu, 22 Aug 1996 03:48:09 GMT References: <1996Aug17.102409.3193@clari.net> <1996Aug19.082909.7382@uu.net> <1996Aug20.130609.5377@stanford.edu> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Aug20.130609.5377@stanford.edu>, mvasiliev@stanford.edu (Morag Vasiliev) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Mikhail Choi | mchoi@panix.com PGP Key fingerprint: 6D9A 8425 4FD5 8D80 "Keep the channels open." From bperez@cam.ac.uk Fri Aug 23 14:24:09 1996 Path: ashpoly!cascade!transat!ukc!fennimore!cam!bperez From: bperez@cam.ac.uk (Brian Pérez) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug23.142409.8710@cam.ac.uk> Date: Fri, 23 Aug 1996 14:24:09 GMT References: <1996Aug17.102409.3193@clari.net> <1996Aug19.082909.7382@uu.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Aug19.082909.7382@uu.net>, mcampbell@uu.net (Min-jun Campbell) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Brian Pérez "Do not worship the copy." Acorn RiscPC 600 / System 7.5.1