From dschneider@cern.ch Sun Jun 19 04:59:07 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!cern!dschneider From: dschneider@cern.ch (Dong-hyun Schneider) Newsgroups: comp.sys.m68k Subject: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jun19.045907.2010@cern.ch> Date: Sun, 19 Jun 1994 04:59:07 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: TIN [version 1.2 PL2] Lines: 10 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. Does anyone want to test on an unaccelerated Amiga 500 with 512K chip RAM? -- Dong-hyun Schneider Tape trading list upon request. SASE required for international mail. From ssuzuki@earthlink.net Mon Jun 20 20:16:07 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!earthlink!ssuzuki From: ssuzuki@earthlink.net (Sven Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jun20.201607.6860@earthlink.net> Date: Mon, 20 Jun 1994 20:16:07 GMT References: <1994Jun19.045907.2010@cern.ch> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Jun19.045907.2010@cern.ch>, dschneider@cern.ch (Dong-hyun Schneider) 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. -- Sven Suzuki *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0