From stanaka@kth.se Sun Jan 08 10:55:09 1995 Path: ashpoly!cascade!transat!ukc!fennimore!kth!stanaka From: stanaka@kth.se (Seo-yeon Tanaka) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Jan08.105509.6115@kth.se> Date: Sun, 08 Jan 1995 10:55:09 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 11 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! 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. Source code and executable will be released on Aminet under mus/misc/stardust_amiga.lha next week. -- Seo-yeon Tanaka *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From smuller@netcom.com Mon Jan 09 21:16:09 1995 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!smuller From: smuller@netcom.com (Sven Müller) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Jan09.211609.2343@netcom.com> Date: Mon, 09 Jan 1995 21:16:09 GMT References: <1995Jan08.105509.6115@kth.se> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jan08.105509.6115@kth.se>, stanaka@kth.se (Seo-yeon Tanaka) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. > 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? -- Sven Müller Tape trading list upon request. SASE required for international mail. From dvasiliev@pacbell.net Tue Jan 10 14:13:09 1995 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!dvasiliev From: dvasiliev@pacbell.net (Dmitri Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Jan10.141309.3230@pacbell.net> Date: Tue, 10 Jan 1995 14:13:09 GMT References: <1995Jan08.105509.6115@kth.se> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jan08.105509.6115@kth.se>, stanaka@kth.se (Seo-yeon Tanaka) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Tested on my A3000 / 25 MHz. Ran smoothly in the background while I was compiling a C program in another window. -- Dmitri Vasiliev "They will send a copy in my place." Amiga 3000T / SunOS 4.1.4 From msanchez@pacbell.net Thu Jan 12 06:55:09 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!msanchez From: msanchez@pacbell.net (Mateo Sánchez) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Jan12.065509.3348@pacbell.net> Date: Thu, 12 Jan 1995 06:55:09 GMT References: <1995Jan08.105509.6115@kth.se> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Jan08.105509.6115@kth.se>, stanaka@kth.se (Seo-yeon Tanaka) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! -- Mateo Sánchez -- Pacific Bell Internet Services "When every node is whole, the channel opens." From tmacdonald@tum.de Fri Jan 13 06:39:09 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!tum!tmacdonald From: tmacdonald@tum.de (Takeshi MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1995Jan13.063909.5002@tum.de> Date: Fri, 13 Jan 1995 06:39:09 GMT References: <1995Jan08.105509.6115@kth.se> <1995Jan12.065509.3348@pacbell.net> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Jan12.065509.3348@pacbell.net>, msanchez@pacbell.net (Mateo Sánchez) writes: > Using the power LED as a carrier lock indicator is pure Amiga demo scene style. Kudos! PC users spend $3,000 on Sound Blasters and Pentium chips and still can't do what a $500 Amiga was doing in 1985. -- Takeshi MacDonald -- Technische Universität München "Hardware is temporary. The signal survives."