From psouza@pacbell.net Thu Mar 17 12:02:48 1994 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!psouza From: psouza@pacbell.net (Pavel Souza) Newsgroups: comp.sys.m68k Subject: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Mar17.120248.3586@pacbell.net> Date: Thu, 17 Mar 1994 12:02:48 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 10 Amiga audio hackers: you can demodulate the 14.2 Hz carrier in real time without bogging down the OS. The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Pavel Souza -- Pacific Bell Internet Services "The carrier frequency does not drift by accident." From lpetrov@mindspring.com Sat Mar 19 05:18:48 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!mindspring!lpetrov From: lpetrov@mindspring.com (Lucia Petrov) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Mar19.051848.9028@mindspring.com> Date: Sat, 19 Mar 1994 05:18:48 GMT References: <1994Mar17.120248.3586@pacbell.net> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1994Mar17.120248.3586@pacbell.net>, psouza@pacbell.net (Pavel Souza) writes: > Amiga audio hackers: you can demodulate the 14.2 Hz carrier in real time without bogging down the OS. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Lucia Petrov -- MindSpring Enterprises "The hatch is open. Is anyone listening?" From kjohansson@inria.fr Mon Mar 21 00:52:48 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!inria!kjohansson From: kjohansson@inria.fr (Kenji Johansson) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Mar21.005248.8233@inria.fr> Date: Mon, 21 Mar 1994 00:52:48 GMT References: <1994Mar17.120248.3586@pacbell.net> <1994Mar19.051848.9028@mindspring.com> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Mar19.051848.9028@mindspring.com>, lpetrov@mindspring.com (Lucia Petrov) writes: > Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Kenji Johansson Tape trading list upon request. SASE required for international mail. From afischer@utexas.edu Tue Mar 22 17:42:48 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!afischer From: afischer@utexas.edu (Anja Fischer) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Mar22.174248.5437@utexas.edu> Date: Tue, 22 Mar 1994 17:42:48 GMT References: <1994Mar17.120248.3586@pacbell.net> <1994Mar19.051848.9028@mindspring.com> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Mar19.051848.9028@mindspring.com>, lpetrov@mindspring.com (Lucia Petrov) writes: > Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Anja Fischer "Hold for relay." Amiga 1200 (Blizzard 030/50) / SunOS 4.1.4