From asmirnov@uni-hamburg.de Mon Apr 24 20:39:00 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!uni-hamburg!asmirnov From: asmirnov@uni-hamburg.de (Aiko Smirnov) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr24.203900.9791@uni-hamburg.de> Date: Mon, 24 Apr 1995 20:39:00 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. 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. -- Aiko Smirnov | asmirnov@uni-hamburg.de PGP Key fingerprint: 9FE4 C205 BAF3 5D26 "Keep the channels open." From gchoi@hanse.de Wed Apr 26 15:30:00 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!hanse!gchoi From: gchoi@hanse.de (Graham Choi) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr26.153000.4778@hanse.de> Date: Wed, 26 Apr 1995 15:30:00 GMT References: <1995Apr24.203900.9791@uni-hamburg.de> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Apr24.203900.9791@uni-hamburg.de>, asmirnov@uni-hamburg.de (Aiko Smirnov) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- === Graham Choi === Dept of Electrical Engineering, Hanse-Netzwerk Hamburg "Hardware is temporary. The signal survives." From mbrennan@cam.ac.uk Fri Apr 28 10:07:00 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!cam!mbrennan From: mbrennan@cam.ac.uk (Matthias Brennan) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr28.100700.2419@cam.ac.uk> Date: Fri, 28 Apr 1995 10:07:00 GMT References: <1995Apr24.203900.9791@uni-hamburg.de> <1995Apr26.153000.4778@hanse.de> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Apr26.153000.4778@hanse.de>, gchoi@hanse.de (Graham Choi) 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'. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Matthias Brennan *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From rpark@unam.mx Sun Apr 30 06:35:00 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!unam!rpark From: rpark@unam.mx (Renata Park) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Apr30.063500.2788@unam.mx> Date: Sun, 30 Apr 1995 06:35:00 GMT References: <1995Apr24.203900.9791@uni-hamburg.de> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Apr24.203900.9791@uni-hamburg.de>, asmirnov@uni-hamburg.de (Aiko Smirnov) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- === Renata Park === Dept of Electrical Engineering, Universidad Nacional Autónoma de México (DGSCA) "Measuring a record you own is listening, not piracy."