From nito@ox.ac.uk Thu Jul 28 16:57:18 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!ox!nito From: nito@ox.ac.uk (Nadine Ito) Newsgroups: comp.sys.m68k Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul28.165718.5419@ox.ac.uk> Date: Thu, 28 Jul 1994 16:57:18 GMT Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk 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. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Nadine Ito *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From divanov@pipeline.com Fri Jul 29 16:41:18 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!pipeline!divanov From: divanov@pipeline.com (Dave Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul29.164118.2825@pipeline.com> Date: Fri, 29 Jul 1994 16:41:18 GMT References: <1994Jul28.165718.5419@ox.ac.uk> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 8 In article <1994Jul28.165718.5419@ox.ac.uk>, nito@ox.ac.uk (Nadine Ito) 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. -- Dave Ivanov -- The Pipeline Internet Network "5 sigma is a discovery. 7 is a question." From epetrov@titech.ac.jp Sat Jul 30 10:52:18 1994 Path: ashpoly!cascade!mxgate!coyoacan!titech!epetrov From: epetrov@titech.ac.jp (Elaine Petrov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul30.105218.9564@titech.ac.jp> Date: Sat, 30 Jul 1994 10:52:18 GMT References: <1994Jul28.165718.5419@ox.ac.uk> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Jul28.165718.5419@ox.ac.uk>, nito@ox.ac.uk (Nadine Ito) 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. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- === Elaine Petrov === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "5 sigma is a discovery. 7 is a question." From gfischer@cmu.edu Sun Jul 31 12:10:18 1994 Path: ashpoly!cascade!brgate!saturno!cmu!gfischer From: gfischer@cmu.edu (Göran Fischer) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul31.121018.5093@cmu.edu> Date: Sun, 31 Jul 1994 12:10:18 GMT References: <1994Jul28.165718.5419@ox.ac.uk> <1994Jul30.105218.9564@titech.ac.jp> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jul30.105218.9564@titech.ac.jp>, epetrov@titech.ac.jp (Elaine Petrov) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Göran Fischer Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS. ------------------------------------------------------------