From jperez@illinois.edu Wed Oct 26 21:10:04 1994 Path: ashpoly!cascade!transat!ukc!fennimore!illinois!jperez From: jperez@illinois.edu (Ji-woo Pérez) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Oct26.211004.9399@illinois.edu> Date: Wed, 26 Oct 1994 21:10:04 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 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. 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. -- Ji-woo Pérez Tape trading list upon request. SASE required for international mail. From skowalski@u-tokyo.ac.jp Fri Oct 28 23:22:04 1994 Path: ashpoly!cascade!bigsur!u-tokyo!skowalski From: skowalski@u-tokyo.ac.jp (Sven Kowalski) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Oct28.232204.4215@u-tokyo.ac.jp> Date: Fri, 28 Oct 1994 23:22:04 GMT References: <1994Oct26.211004.9399@illinois.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Oct26.211004.9399@illinois.edu>, jperez@illinois.edu (Ji-woo Pérez) 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. Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet. -- Sven Kowalski SupraFAXModem 28.8 @ 9600 Telebit bps "There are 14 nodes and only 10 countries. Count again."