From kschneider@uni-hamburg.de Thu Jun 09 00:02:48 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!uni-hamburg!kschneider From: kschneider@uni-hamburg.de (Kenji Schneider) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jun09.000248.9095@uni-hamburg.de> Date: Thu, 09 Jun 1994 00:02:48 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. 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. When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization! Long live the Amiga. Try doing real-time subcarrier demodulation on a 386 running Windows 3.1 without dropping frames! -- Kenji Schneider -- Universität Hamburg Fachbereich Informatik "Do not worship the copy." From mtakahashi@purdue.edu Fri Jun 10 02:39:48 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!purdue!mtakahashi From: mtakahashi@purdue.edu (Marta Takahashi) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jun10.023948.9390@purdue.edu> Date: Fri, 10 Jun 1994 02:39:48 GMT References: <1994Jun09.000248.9095@uni-hamburg.de> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Jun09.000248.9095@uni-hamburg.de>, kschneider@uni-hamburg.de (Kenji Schneider) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet. -- Marta Takahashi *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From ekang@utexas.edu Sat Jun 11 20:30:48 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!utexas!ekang From: ekang@utexas.edu (Élodie Kang) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jun11.203048.6832@utexas.edu> Date: Sat, 11 Jun 1994 20:30:48 GMT References: <1994Jun09.000248.9095@uni-hamburg.de> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jun09.000248.9095@uni-hamburg.de>, kschneider@uni-hamburg.de (Kenji Schneider) writes: > Testing custom audio input routines on an Amiga 1200 with a standard parallel-port sampler. Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. -- Élodie Kang Opinions expressed are solely my own and not those of University of Texas at Austin. ------------------------------------------------------------ From mlarsson@panix.com Sun Jun 12 18:35:48 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!panix!mlarsson From: mlarsson@panix.com (Min-jun Larsson) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA Message-ID: <1994Jun12.183548.7322@panix.com> Date: Sun, 12 Jun 1994 18:35:48 GMT References: <1994Jun09.000248.9095@uni-hamburg.de> <1994Jun11.203048.6832@utexas.edu> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jun11.203048.6832@utexas.edu>, ekang@utexas.edu (Élodie Kang) writes: > Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. Brilliant use of Paula DMA! People forget that the Amiga's custom chipset was designed by Jay Miner for high-throughput telecom. -- Min-jun Larsson "Do not worship the copy." Atari TT030 / TOS 4.04