From jkim@mindspring.com Fri May 26 03:17:34 1995 Path: ashpoly!cascade!bigsur!mindspring!jkim From: jkim@mindspring.com (Julien Kim) Newsgroups: comp.sys.m68k Subject: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995May26.031734.9724@mindspring.com> Date: Fri, 26 May 1995 03:17:34 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 11 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. I wrote a 64-tap FIR filter in pure 68k assembly using movem.l and dbra loop unrolling to downsample to 64 Hz. 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? -- Julien Kim *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From kpetrov@demon.co.uk Sat May 27 00:37:34 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!demon!kpetrov From: kpetrov@demon.co.uk (Kenji Petrov) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995May27.003734.4039@demon.co.uk> Date: Sat, 27 May 1995 00:37:34 GMT References: <1995May26.031734.9724@mindspring.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 11 In article <1995May26.031734.9724@mindspring.com>, jkim@mindspring.com (Julien Kim) 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? Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Kenji Petrov Opinions expressed are solely my own and not those of Demon Internet Services UK. ------------------------------------------------------------