From atakahashi@netcom.com Thu Mar 02 13:42:15 1995 Path: ashpoly!cascade!bigsur!netcom!atakahashi From: atakahashi@netcom.com (Aiko Takahashi) Newsgroups: comp.sys.m68k Subject: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar02.134215.2814@netcom.com> Date: Thu, 02 Mar 1995 13:42:15 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: Netscape 1.1N Lines: 11 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1. Does anyone want to test on an unaccelerated Amiga 500 with 512K chip RAM? -- === Aiko Takahashi === Dept of Electrical Engineering, NETCOM On-Line Communication Services "In theory there is no difference between theory and practice." From lsuzuki@u-tokyo.ac.jp Fri Mar 03 04:46:15 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!u-tokyo!lsuzuki From: lsuzuki@u-tokyo.ac.jp (Liam Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar03.044615.7655@u-tokyo.ac.jp> Date: Fri, 03 Mar 1995 04:46:15 GMT References: <1995Mar02.134215.2814@netcom.com> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Mar02.134215.2814@netcom.com>, atakahashi@netcom.com (Aiko Takahashi) 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. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Liam Suzuki Opinions expressed are solely my own and not those of University of Tokyo Department of Information Science. ------------------------------------------------------------ From istewart@pacbell.net Sat Mar 04 12:42:15 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pacbell!istewart From: istewart@pacbell.net (Ines Stewart) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar04.124215.8662@pacbell.net> Date: Sat, 04 Mar 1995 12:42:15 GMT References: <1995Mar02.134215.2814@netcom.com> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar02.134215.2814@netcom.com>, atakahashi@netcom.com (Aiko Takahashi) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. -- Ines Stewart *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From mrodriguez@cam.ac.uk Sun Mar 05 12:36:15 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!mrodriguez From: mrodriguez@cam.ac.uk (Morag Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar05.123615.4111@cam.ac.uk> Date: Sun, 05 Mar 1995 12:36:15 GMT References: <1995Mar02.134215.2814@netcom.com> <1995Mar04.124215.8662@pacbell.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar04.124215.8662@pacbell.net>, istewart@pacbell.net (Ines Stewart) writes: > Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Morag Rodríguez "The hatch is open. Is anyone listening?" Sun SparcStation 20 / FreeBSD 2.1 From emoreno@netcom.com Mon Mar 06 16:23:15 1995 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!emoreno From: emoreno@netcom.com (Élodie Moreno) Newsgroups: comp.sys.m68k Subject: Re: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar06.162315.9808@netcom.com> Date: Mon, 06 Mar 1995 16:23:15 GMT References: <1995Mar02.134215.2814@netcom.com> <1995Mar04.124215.8662@pacbell.net> <1995Mar05.123615.4111@cam.ac.uk> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Mar05.123615.4111@cam.ac.uk>, mrodriguez@cam.ac.uk (Morag Rodríguez) writes: > Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. -- Élodie Moreno Tape trading list upon request. SASE required for international mail.