From astewart@rwth-aachen.de Sat May 13 19:29:08 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!rwth-aachen!astewart From: astewart@rwth-aachen.de (Astrid Stewart) Newsgroups: comp.sys.m68k Subject: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995May13.192908.3048@rwth-aachen.de> Date: Sat, 13 May 1995 19:29:08 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] 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? -- Astrid Stewart US Robotics Courier V.34 @ 14,400 bps "Row 14. No joke." From arobertson@mit.edu Mon May 15 02:55:08 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!mit!arobertson From: arobertson@mit.edu (Anja Robertson) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995May15.025508.4927@mit.edu> Date: Mon, 15 May 1995 02:55:08 GMT References: <1995May13.192908.3048@rwth-aachen.de> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1995May13.192908.3048@rwth-aachen.de>, astewart@rwth-aachen.de (Astrid Stewart) writes: > 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. Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! -- Anja Robertson Zyxel U-1496E @ 9600 Telebit bps "Marcus is not one man."