From lkang@u-tokyo.ac.jp Sat Apr 20 18:33:52 1996 Path: ashpoly!cascade!transat!ukc!fennimore!u-tokyo!lkang From: lkang@u-tokyo.ac.jp (Lisa Kang) Newsgroups: comp.sys.m68k Subject: Question: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Apr20.183352.7592@u-tokyo.ac.jp> Date: Sat, 20 Apr 1996 18:33:52 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp 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. 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. Does anyone want to test on an unaccelerated Amiga 500 with 512K chip RAM? -- Lisa Kang *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From dgirard@rwth-aachen.de Sun Apr 21 15:38:52 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!rwth-aachen!dgirard From: dgirard@rwth-aachen.de (Dave Girard) Newsgroups: comp.sys.m68k Subject: Re: Question: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Apr21.153852.5186@rwth-aachen.de> Date: Sun, 21 Apr 1996 15:38:52 GMT References: <1996Apr20.183352.7592@u-tokyo.ac.jp> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Apr20.183352.7592@u-tokyo.ac.jp>, lkang@u-tokyo.ac.jp (Lisa Kang) 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. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Dave Girard -- RWTH Aachen Informatik "We don't sign stars. We build them." From ttakahashi@kth.se Mon Apr 22 12:35:52 1996 Path: ashpoly!cascade!bigsur!kth!ttakahashi From: ttakahashi@kth.se (Tomas Takahashi) Newsgroups: comp.sys.m68k Subject: Re: Question: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Apr22.123552.9996@kth.se> Date: Mon, 22 Apr 1996 12:35:52 GMT References: <1996Apr20.183352.7592@u-tokyo.ac.jp> <1996Apr21.153852.5186@rwth-aachen.de> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Apr21.153852.5186@rwth-aachen.de>, dgirard@rwth-aachen.de (Dave Girard) writes: > Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Tomas Takahashi Tape trading list upon request. SASE required for international mail. From sgonzalez@rwth-aachen.de Wed Apr 24 09:42:52 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!rwth-aachen!sgonzalez From: sgonzalez@rwth-aachen.de (Sven González) Newsgroups: comp.sys.m68k Subject: Re: Question: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Apr24.094252.6077@rwth-aachen.de> Date: Wed, 24 Apr 1996 09:42:52 GMT References: <1996Apr20.183352.7592@u-tokyo.ac.jp> <1996Apr21.153852.5186@rwth-aachen.de> <1996Apr22.123552.9996@kth.se> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Apr22.123552.9996@kth.se>, ttakahashi@kth.se (Tomas Takahashi) 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? PGP Public key available via finger or upon request. -- === Sven González === Dept of Electrical Engineering, RWTH Aachen Informatik "Extraordinary claims require extraordinary spectra."