From ytanaka@illinois.edu Wed Nov 06 15:32:01 1996 Path: ashpoly!cascade!transat!ukc!fennimore!illinois!ytanaka From: ytanaka@illinois.edu (Yuki Tanaka) Newsgroups: comp.sys.m68k Subject: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Nov06.153201.6200@illinois.edu> Date: Wed, 06 Nov 1996 15:32:01 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. 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. The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1. Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Yuki Tanaka Tape trading list upon request. SASE required for international mail. From lgarcia@titech.ac.jp Thu Nov 07 06:07:01 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!titech!lgarcia From: lgarcia@titech.ac.jp (Lars García) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Nov07.060701.3648@titech.ac.jp> Date: Thu, 07 Nov 1996 06:07:01 GMT References: <1996Nov06.153201.6200@illinois.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Nov06.153201.6200@illinois.edu>, ytanaka@illinois.edu (Yuki Tanaka) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Lars García | lgarcia@titech.ac.jp PGP Key fingerprint: C8C6 F5C3 9BCA 7108 "Keep the channels open." From asuzuki@pacbell.net Fri Nov 08 05:55:01 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pacbell!asuzuki From: asuzuki@pacbell.net (Astrid Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Nov08.055501.2700@pacbell.net> Date: Fri, 08 Nov 1996 05:55:01 GMT References: <1996Nov06.153201.6200@illinois.edu> <1996Nov07.060701.3648@titech.ac.jp> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996Nov07.060701.3648@titech.ac.jp>, lgarcia@titech.ac.jp (Lars García) writes: > Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Astrid Suzuki "5 sigma is a discovery. 7 is a question." 486DX4/100 (FreeBSD 2.0.5) / FreeBSD 2.1 From rgonzalez@uni-hamburg.de Fri Nov 08 06:54:01 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!rgonzalez From: rgonzalez@uni-hamburg.de (Rodrigo González) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Nov08.065401.6593@uni-hamburg.de> Date: Fri, 08 Nov 1996 06:54:01 GMT References: <1996Nov06.153201.6200@illinois.edu> <1996Nov07.060701.3648@titech.ac.jp> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996Nov07.060701.3648@titech.ac.jp>, lgarcia@titech.ac.jp (Lars García) writes: > Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Rodrigo González Tape trading list upon request. SASE required for international mail.