From eperez@rwth-aachen.de Thu Feb 22 14:53:18 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!rwth-aachen!eperez From: eperez@rwth-aachen.de (Elaine Pérez) Newsgroups: comp.sys.m68k Subject: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb22.145318.8701@rwth-aachen.de> Date: Thu, 22 Feb 1996 14:53:18 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1. Source code and executable will be released on Aminet under mus/misc/stardust_amiga.lha next week. -- === Elaine Pérez === Dept of Electrical Engineering, RWTH Aachen Informatik "A soul is not exclusive to biology." From mlopez@unam.mx Sat Feb 24 07:51:18 1996 Path: ashpoly!cascade!transat!ukc!fennimore!unam!mlopez From: mlopez@unam.mx (Marisol López) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb24.075118.3800@unam.mx> Date: Sat, 24 Feb 1996 07:51:18 GMT References: <1996Feb22.145318.8701@rwth-aachen.de> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Feb22.145318.8701@rwth-aachen.de>, eperez@rwth-aachen.de (Elaine Pérez) writes: > Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. > When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! PC users spend $3,000 on Sound Blasters and Pentium chips and still can't do what a $500 Amiga was doing in 1985. -- Marisol López *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0 From candersson@u-tokyo.ac.jp Sun Feb 25 11:24:18 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!candersson From: candersson@u-tokyo.ac.jp (Callum Andersson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb25.112418.8674@u-tokyo.ac.jp> Date: Sun, 25 Feb 1996 11:24:18 GMT References: <1996Feb22.145318.8701@rwth-aachen.de> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Feb22.145318.8701@rwth-aachen.de>, eperez@rwth-aachen.de (Elaine Pérez) writes: > Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Callum Andersson "Row 14. No joke." Macintosh IIfx / System 7.5.1 From trodriguez@delphi.com Mon Feb 26 11:01:18 1996 Path: ashpoly!cascade!brgate!saturno!delphi!trodriguez From: trodriguez@delphi.com (Tobias Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb26.110118.6383@delphi.com> Date: Mon, 26 Feb 1996 11:01:18 GMT References: <1996Feb22.145318.8701@rwth-aachen.de> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Feb22.145318.8701@rwth-aachen.de>, eperez@rwth-aachen.de (Elaine Pérez) writes: > Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier. > When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! Download failed on Aminet mirror. Can someone mail me an ADF floppy disk image? Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Tobias Rodríguez Tape trading list upon request. SASE required for international mail. From swatanabe@berkeley.edu Tue Feb 27 07:26:18 1996 Path: ashpoly!cascade!brgate!saturno!berkeley!swatanabe From: swatanabe@berkeley.edu (Sergei Watanabe) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1996Feb27.072618.2697@berkeley.edu> Date: Tue, 27 Feb 1996 07:26:18 GMT References: <1996Feb22.145318.8701@rwth-aachen.de> <1996Feb25.112418.8674@u-tokyo.ac.jp> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Feb25.112418.8674@u-tokyo.ac.jp>, candersson@u-tokyo.ac.jp (Callum Andersson) 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. -- Sergei Watanabe -- UC Berkeley Department of EECS "Hold for relay."