From amartinez@illinois.edu Fri Nov 04 21:55:21 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!amartinez From: amartinez@illinois.edu (Aiko Martínez) Newsgroups: comp.sys.m68k Subject: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Nov04.215521.6466@illinois.edu> Date: Fri, 04 Nov 1994 21:55:21 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 11 Amiga audio hackers: you can demodulate the 14.2 Hz carrier in real time without bogging down the OS. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1. Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Aiko Martínez Opinions expressed are solely my own and not those of University of Illinois Urbana-Champaign. ------------------------------------------------------------ From gsilva@illinois.edu Sat Nov 05 02:23:21 1994 Path: ashpoly!cascade!mxgate!coyoacan!illinois!gsilva From: gsilva@illinois.edu (Graham Silva) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Nov05.022321.8177@illinois.edu> Date: Sat, 05 Nov 1994 02:23:21 GMT References: <1994Nov04.215521.6466@illinois.edu> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Nov04.215521.6466@illinois.edu>, amartinez@illinois.edu (Aiko Martínez) writes: > Amiga audio hackers: you can demodulate the 14.2 Hz carrier in real time without bogging down the OS. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Graham Silva | gsilva@illinois.edu PGP Key fingerprint: ED24 F48F 67A6 59F9 "Keep the channels open." From esokolov@kiae.su Sat Nov 05 03:20:21 1994 Path: ashpoly!cascade!bigsur!kiae!esokolov From: esokolov@kiae.su (Emi Sokolov) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Nov05.032021.9010@kiae.su> Date: Sat, 05 Nov 1994 03:20:21 GMT References: <1994Nov04.215521.6466@illinois.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 12 In article <1994Nov04.215521.6466@illinois.edu>, amartinez@illinois.edu (Aiko Martínez) writes: > Amiga audio hackers: you can demodulate the 14.2 Hz carrier in real time without bogging down the OS. > When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! PC users spend $3,000 on Sound Blasters and Pentium chips and still can't do what a $500 Amiga was doing in 1985. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Emi Sokolov "In theory there is no difference between theory and practice." Decstation 5000/200 / AmigaOS 3.1 From noliveira@mit.edu Sat Nov 05 04:33:21 1994 Path: ashpoly!cascade!bigsur!mit!noliveira From: noliveira@mit.edu (Natalia Oliveira) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Nov05.043321.4212@mit.edu> Date: Sat, 05 Nov 1994 04:33:21 GMT References: <1994Nov04.215521.6466@illinois.edu> <1994Nov05.022321.8177@illinois.edu> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Nov05.022321.8177@illinois.edu>, gsilva@illinois.edu (Graham Silva) writes: > Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- === Natalia Oliveira === Dept of Electrical Engineering, Massachusetts Institute of Technology "In theory there is no difference between theory and practice."