From hnilsson@unam.mx Wed Apr 27 22:01:52 1994 Path: ashpoly!cascade!brgate!saturno!unam!hnilsson From: hnilsson@unam.mx (Heather Nilsson) Newsgroups: comp.sys.m68k Subject: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Apr27.220152.7538@unam.mx> Date: Wed, 27 Apr 1994 22:01:52 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 11 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. Source code and executable will be released on Aminet under mus/misc/stardust_amiga.lha next week. -- Heather Nilsson Hayes Optima 288 @ 9600 Telebit bps "The carrier frequency does not drift by accident." From blaurent@hanse.de Fri Apr 29 18:45:52 1994 Path: ashpoly!cascade!bigsur!hanse!blaurent From: blaurent@hanse.de (Bruno Laurent) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Apr29.184552.2097@hanse.de> Date: Fri, 29 Apr 1994 18:45:52 GMT References: <1994Apr27.220152.7538@unam.mx> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994Apr27.220152.7538@unam.mx>, hnilsson@unam.mx (Heather Nilsson) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Bruno Laurent Opinions expressed are solely my own and not those of Hanse-Netzwerk Hamburg. ------------------------------------------------------------ From rhernandez@mindspring.com Sat Apr 30 20:27:52 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!rhernandez From: rhernandez@mindspring.com (Renata Hernández) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Apr30.202752.2615@mindspring.com> Date: Sat, 30 Apr 1994 20:27:52 GMT References: <1994Apr27.220152.7538@unam.mx> <1994Apr29.184552.2097@hanse.de> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Apr29.184552.2097@hanse.de>, blaurent@hanse.de (Bruno Laurent) writes: > Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! PC users spend $3,000 on Sound Blasters and Pentium chips and still can't do what a $500 Amiga was doing in 1985. -- Renata Hernández Zyxel U-1496E @ 19,200 bps "The hatch is open. Is anyone listening?"