From bmuller@mindspring.com Wed Feb 21 17:09:24 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!bmuller From: bmuller@mindspring.com (Bastien Müller) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb21.170924.7090@mindspring.com> Date: Wed, 21 Feb 1996 17:09:24 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! By setting up Paula's audio DMA to double-buffer incoming 8-bit samples, the 68020 has plenty of cycles left for the Costas loop. Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Bastien Müller Tape trading list upon request. SASE required for international mail. From jreyes@uni-hamburg.de Fri Feb 23 20:05:24 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!jreyes From: jreyes@uni-hamburg.de (Joachim Reyes) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb23.200524.1297@uni-hamburg.de> Date: Fri, 23 Feb 1996 20:05:24 GMT References: <1996Feb21.170924.7090@mindspring.com> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1996Feb21.170924.7090@mindspring.com>, bmuller@mindspring.com (Bastien Müller) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. PC users spend $3,000 on Sound Blasters and Pentium chips and still can't do what a $500 Amiga was doing in 1985. -- Joachim Reyes Tape trading list upon request. SASE required for international mail. From kgarcia@inria.fr Sat Feb 24 08:21:24 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!inria!kgarcia From: kgarcia@inria.fr (Kirsty García) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb24.082124.5491@inria.fr> Date: Sat, 24 Feb 1996 08:21:24 GMT References: <1996Feb21.170924.7090@mindspring.com> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Feb21.170924.7090@mindspring.com>, bmuller@mindspring.com (Bastien Müller) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Kirsty García "5 sigma is a discovery. 7 is a question." Atari TT030 / NEXTSTEP 3.3