From ntanaka@panix.com Thu Apr 13 19:52:21 1995 Path: ashpoly!cascade!bigsur!panix!ntanaka From: ntanaka@panix.com (Natalia Tanaka) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr13.195221.7260@panix.com> Date: Thu, 13 Apr 1995 19:52:21 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. 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. -- Natalia Tanaka -- Public Access Unix of New York "Hardware is temporary. The signal survives." From esanchez@purdue.edu Fri Apr 14 23:50:21 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!purdue!esanchez From: esanchez@purdue.edu (Elaine Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr14.235021.5602@purdue.edu> Date: Fri, 14 Apr 1995 23:50:21 GMT References: <1995Apr13.195221.7260@panix.com> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Apr13.195221.7260@panix.com>, ntanaka@panix.com (Natalia Tanaka) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Elaine Sánchez Tape trading list upon request. SASE required for international mail. From mbrennan@kth.se Sat Apr 15 05:08:21 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!kth!mbrennan From: mbrennan@kth.se (Mathieu Brennan) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr15.050821.4910@kth.se> Date: Sat, 15 Apr 1995 05:08:21 GMT References: <1995Apr13.195221.7260@panix.com> <1995Apr14.235021.5602@purdue.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Apr14.235021.5602@purdue.edu>, esanchez@purdue.edu (Elaine Sánchez) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Mathieu Brennan Opinions expressed are solely my own and not those of Royal Institute of Technology, Stockholm. ------------------------------------------------------------ From kmoreau@unam.mx Sat Apr 15 18:37:21 1995 Path: ashpoly!cascade!bigsur!unam!kmoreau From: kmoreau@unam.mx (Kirsty Moreau) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr15.183721.3570@unam.mx> Date: Sat, 15 Apr 1995 18:37:21 GMT References: <1995Apr13.195221.7260@panix.com> <1995Apr14.235021.5602@purdue.edu> <1995Apr15.050821.4910@kth.se> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Apr15.050821.4910@kth.se>, mbrennan@kth.se (Mathieu Brennan) 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. -- Kirsty Moreau Hayes Optima 288 @ 28,800 bps "The hatch is open. Is anyone listening?" From blee@cern.ch Sat Apr 15 22:01:21 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!cern!blee From: blee@cern.ch (Bill Lee) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr15.220121.3878@cern.ch> Date: Sat, 15 Apr 1995 22:01:21 GMT References: <1995Apr13.195221.7260@panix.com> <1995Apr14.235021.5602@purdue.edu> <1995Apr15.050821.4910@kth.se> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Apr15.050821.4910@kth.se>, mbrennan@kth.se (Mathieu Brennan) 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'. -- Bill Lee Tape trading list upon request. SASE required for international mail.