From isouza@cam.ac.uk Mon Oct 16 14:49:27 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cam!isouza From: isouza@cam.ac.uk (Ines Souza) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Oct16.144927.2418@cam.ac.uk> Date: Mon, 16 Oct 1995 14:49:27 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. 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. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Ines Souza Tape trading list upon request. SASE required for international mail. From esanchez@clari.net Mon Oct 16 16:39:27 1995 Path: ashpoly!cascade!brgate!saturno!clari!esanchez From: esanchez@clari.net (Emi Sánchez) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Oct16.163927.6731@clari.net> Date: Mon, 16 Oct 1995 16:39:27 GMT References: <1995Oct16.144927.2418@cam.ac.uk> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Oct16.144927.2418@cam.ac.uk>, isouza@cam.ac.uk (Ines Souza) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet. If you are posting from AOL, please read RFC 1036 before posting again. -- Emi Sánchez *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0