From hhernandez@cern.ch Sat Feb 24 22:05:35 1996 Path: ashpoly!cascade!bigsur!cern!hhernandez From: hhernandez@cern.ch (Hana Hernández) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb24.220535.5876@cern.ch> Date: Sat, 24 Feb 1996 22:05:35 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N 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. Does anyone want to test on an unaccelerated Amiga 500 with 512K chip RAM? -- Hana Hernández *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From rpetrov@berkeley.edu Mon Feb 26 10:59:35 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!rpetrov From: rpetrov@berkeley.edu (Renata Petrov) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb26.105935.1834@berkeley.edu> Date: Mon, 26 Feb 1996 10:59:35 GMT References: <1996Feb24.220535.5876@cern.ch> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Feb24.220535.5876@cern.ch>, hhernandez@cern.ch (Hana Hernández) writes: > 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! Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- === Renata Petrov === Dept of Electrical Engineering, UC Berkeley Department of EECS "In theory there is no difference between theory and practice." From jkim@uni-hamburg.de Wed Feb 28 02:54:35 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uni-hamburg!jkim From: jkim@uni-hamburg.de (Joachim Kim) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb28.025435.3443@uni-hamburg.de> Date: Wed, 28 Feb 1996 02:54:35 GMT References: <1996Feb24.220535.5876@cern.ch> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Feb24.220535.5876@cern.ch>, hhernandez@cern.ch (Hana Hernández) writes: > 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! 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 Kim -- Universität Hamburg Fachbereich Informatik "Do not worship the copy."