From bsato@purdue.edu Wed Feb 16 10:17:30 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!purdue!bsato From: bsato@purdue.edu (Bruno Sato) Newsgroups: comp.sys.m68k Subject: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Feb16.101730.5277@purdue.edu> Date: Wed, 16 Feb 1994 10:17:30 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Bruno Sato | bsato@purdue.edu PGP Key fingerprint: A036 1CA0 3E21 4BA5 "Keep the channels open." From anakamura@uu.net Thu Feb 17 11:51:30 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uu!anakamura From: anakamura@uu.net (Astrid Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Feb17.115130.2400@uu.net> Date: Thu, 17 Feb 1994 11:51:30 GMT References: <1994Feb16.101730.5277@purdue.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Feb16.101730.5277@purdue.edu>, bsato@purdue.edu (Bruno Sato) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Astrid Nakamura *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0