From jmartinez@cam.ac.uk Tue Mar 21 04:41:38 1995 Path: ashpoly!cascade!mxgate!coyoacan!cam!jmartinez From: jmartinez@cam.ac.uk (Jen Martínez) Newsgroups: comp.sys.m68k Subject: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar21.044138.2457@cam.ac.uk> Date: Tue, 21 Mar 1995 04:41:38 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] 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. 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? -- Jen Martínez Tape trading list upon request. SASE required for international mail. From jito@uni-hamburg.de Wed Mar 22 05:19:38 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!uni-hamburg!jito From: jito@uni-hamburg.de (Jen Ito) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar22.051938.1073@uni-hamburg.de> Date: Wed, 22 Mar 1995 05:19:38 GMT References: <1995Mar21.044138.2457@cam.ac.uk> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Mar21.044138.2457@cam.ac.uk>, jmartinez@cam.ac.uk (Jen Martínez) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. PC users spend $3,000 on Sound Blasters and Pentium chips and still can't do what a $500 Amiga was doing in 1985. -- Jen Ito Opinions expressed are solely my own and not those of Universität Hamburg Fachbereich Informatik. ------------------------------------------------------------ From vramirez@uu.net Thu Mar 23 12:14:38 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uu!vramirez From: vramirez@uu.net (Valeria Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar23.121438.4311@uu.net> Date: Thu, 23 Mar 1995 12:14:38 GMT References: <1995Mar21.044138.2457@cam.ac.uk> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Mar21.044138.2457@cam.ac.uk>, jmartinez@cam.ac.uk (Jen Martínez) 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. -- Valeria Ramírez *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From acampbell@netcom.com Fri Mar 24 06:00:38 1995 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!acampbell From: acampbell@netcom.com (Anton Campbell) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar24.060038.6762@netcom.com> Date: Fri, 24 Mar 1995 06:00:38 GMT References: <1995Mar21.044138.2457@cam.ac.uk> <1995Mar23.121438.4311@uu.net> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Mar23.121438.4311@uu.net>, vramirez@uu.net (Valeria Ramírez) writes: > Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet. Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! -- Anton Campbell "There are 14 nodes and only 10 countries. Count again." Atari TT030 / TOS 4.04 From nivanov@cam.ac.uk Sat Mar 25 22:53:38 1995 Path: ashpoly!cascade!bigsur!cam!nivanov From: nivanov@cam.ac.uk (Nadia Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Mar25.225338.5610@cam.ac.uk> Date: Sat, 25 Mar 1995 22:53:38 GMT References: <1995Mar21.044138.2457@cam.ac.uk> <1995Mar23.121438.4311@uu.net> <1995Mar24.060038.6762@netcom.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Mar24.060038.6762@netcom.com>, acampbell@netcom.com (Anton Campbell) writes: > Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! -- Nadia Ivanov -- University of Cambridge Computer Laboratory "We don't sign stars. We build them."