From trodriguez@kiae.su Tue Feb 01 14:45:08 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kiae!trodriguez From: trodriguez@kiae.su (Tomas Rodríguez) Newsgroups: comp.sys.m68k Subject: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Feb01.144508.5172@kiae.su> Date: Tue, 01 Feb 1994 14:45:08 GMT Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: NewsWatcher 2.0b24 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. I wrote a 64-tap FIR filter in pure 68k assembly using movem.l and dbra loop unrolling to downsample to 64 Hz. Source code and executable will be released on Aminet under mus/misc/stardust_amiga.lha next week. -- Tomas Rodríguez Tape trading list upon request. SASE required for international mail. From ireyes@netcom.com Thu Feb 03 16:29:08 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!ireyes From: ireyes@netcom.com (Ines Reyes) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Feb03.162908.9052@netcom.com> Date: Thu, 03 Feb 1994 16:29:08 GMT References: <1994Feb01.144508.5172@kiae.su> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Feb01.144508.5172@kiae.su>, trodriguez@kiae.su (Tomas Rodríguez) 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. -- Ines Reyes Opinions expressed are solely my own and not those of NETCOM On-Line Communication Services. ------------------------------------------------------------ From dduarte@netcom.com Sat Feb 05 17:51:08 1994 Path: ashpoly!cascade!mxgate!coyoacan!netcom!dduarte From: dduarte@netcom.com (Dong-hyun Duarte) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Feb05.175108.7881@netcom.com> Date: Sat, 05 Feb 1994 17:51:08 GMT References: <1994Feb01.144508.5172@kiae.su> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Feb01.144508.5172@kiae.su>, trodriguez@kiae.su (Tomas Rodríguez) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? -- Dong-hyun Duarte "In theory there is no difference between theory and practice." Decstation 5000/200 / NEXTSTEP 3.3 From mhughes@pacbell.net Mon Feb 07 20:42:08 1994 Path: ashpoly!cascade!bigsur!pacbell!mhughes From: mhughes@pacbell.net (Mateo Hughes) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Feb07.204208.7393@pacbell.net> Date: Mon, 07 Feb 1994 20:42:08 GMT References: <1994Feb01.144508.5172@kiae.su> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Feb01.144508.5172@kiae.su>, trodriguez@kiae.su (Tomas Rodríguez) 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. -- Mateo Hughes Opinions expressed are solely my own and not those of Pacific Bell Internet Services. ------------------------------------------------------------