From bpark@tum.de Thu Feb 10 09:36:32 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!bpark From: bpark@tum.de (Bill Park) Newsgroups: comp.sys.m68k Subject: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Feb10.093632.3149@tum.de> Date: Thu, 10 Feb 1994 09:36:32 GMT Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. 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! Does anyone want to test on an unaccelerated Amiga 500 with 512K chip RAM? -- Bill Park "Measuring a record you own is listening, not piracy." Atari Falcon 030 / TOS 4.04 From snilsson@stanford.edu Fri Feb 11 08:19:32 1994 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!snilsson From: snilsson@stanford.edu (Seo-yeon Nilsson) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Feb11.081932.1878@stanford.edu> Date: Fri, 11 Feb 1994 08:19:32 GMT References: <1994Feb10.093632.3149@tum.de> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994Feb10.093632.3149@tum.de>, bpark@tum.de (Bill Park) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Seo-yeon Nilsson Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab. ------------------------------------------------------------ From sfischer@cam.ac.uk Fri Feb 11 14:13:32 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cam!sfischer From: sfischer@cam.ac.uk (Seo-yeon Fischer) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Feb11.141332.7567@cam.ac.uk> Date: Fri, 11 Feb 1994 14:13:32 GMT References: <1994Feb10.093632.3149@tum.de> <1994Feb11.081932.1878@stanford.edu> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Feb11.081932.1878@stanford.edu>, snilsson@stanford.edu (Seo-yeon Nilsson) writes: > Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! > Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! -- Seo-yeon Fischer -- University of Cambridge Computer Laboratory "Hardware is temporary. The signal survives."