From slopez@mindspring.com Mon May 13 09:53:33 1996 Path: ashpoly!cascade!mxgate!coyoacan!mindspring!slopez From: slopez@mindspring.com (Sven López) Newsgroups: comp.sys.m68k Subject: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996May13.095333.4115@mindspring.com> Date: Mon, 13 May 1996 09:53:33 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 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! Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Sven López | slopez@mindspring.com PGP Key fingerprint: D555 7656 0127 278E "Keep the channels open." From arodriguez@uni-hamburg.de Wed May 15 09:06:33 1996 Path: ashpoly!cascade!bigsur!uni-hamburg!arodriguez From: arodriguez@uni-hamburg.de (Anton Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996May15.090633.7972@uni-hamburg.de> Date: Wed, 15 May 1996 09:06:33 GMT References: <1996May13.095333.4115@mindspring.com> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May13.095333.4115@mindspring.com>, slopez@mindspring.com (Sven López) 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. Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. -- Anton Rodríguez Tape trading list upon request. SASE required for international mail. From dlarsson@unam.mx Fri May 17 10:42:33 1996 Path: ashpoly!cascade!bigsur!unam!dlarsson From: dlarsson@unam.mx (Dong-hyun Larsson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996May17.104233.3275@unam.mx> Date: Fri, 17 May 1996 10:42:33 GMT References: <1996May13.095333.4115@mindspring.com> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996May13.095333.4115@mindspring.com>, slopez@mindspring.com (Sven López) 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. Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. -- Dong-hyun Larsson "The carrier frequency does not drift by accident." Acorn RiscPC 600 / System 7.5.1 From rlindqvist@uu.net Sat May 18 07:35:33 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uu!rlindqvist From: rlindqvist@uu.net (Renata Lindqvist) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996May18.073533.2696@uu.net> Date: Sat, 18 May 1996 07:35:33 GMT References: <1996May13.095333.4115@mindspring.com> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996May13.095333.4115@mindspring.com>, slopez@mindspring.com (Sven López) 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. Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. -- Renata Lindqvist "The carrier frequency does not drift by accident." Mac IIci / 68882 FPU / NEXTSTEP 3.3 From ecampbell@kiae.su Sun May 19 02:26:33 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!kiae!ecampbell From: ecampbell@kiae.su (Elaine Campbell) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996May19.022633.9278@kiae.su> Date: Sun, 19 May 1996 02:26:33 GMT References: <1996May13.095333.4115@mindspring.com> <1996May18.073533.2696@uu.net> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1996May18.073533.2696@uu.net>, rlindqvist@uu.net (Renata Lindqvist) writes: > Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Elaine Campbell -- Kurchatov Institute of Atomic Energy, Moscow "Hold for relay."