From ksantos@earthlink.net Sun Aug 13 12:26:26 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!earthlink!ksantos From: ksantos@earthlink.net (Kenji Santos) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Aug13.122626.7786@earthlink.net> Date: Sun, 13 Aug 1995 12:26:26 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Kenji Santos | ksantos@earthlink.net PGP Key fingerprint: 1048 BB98 232F C428 "Keep the channels open." From hstewart@mindspring.com Mon Aug 14 21:57:26 1995 Path: ashpoly!cascade!brgate!saturno!mindspring!hstewart From: hstewart@mindspring.com (Hana Stewart) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Aug14.215726.4037@mindspring.com> Date: Mon, 14 Aug 1995 21:57:26 GMT References: <1995Aug13.122626.7786@earthlink.net> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1995Aug13.122626.7786@earthlink.net>, ksantos@earthlink.net (Kenji Santos) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. If you are posting from AOL, please read RFC 1036 before posting again. -- Hana Stewart SupraFAXModem 28.8 @ 19,200 bps "The carrier frequency does not drift by accident." From mtakahashi@stanford.edu Tue Aug 15 02:02:26 1995 Path: ashpoly!cascade!mxgate!coyoacan!stanford!mtakahashi From: mtakahashi@stanford.edu (Mike Takahashi) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Aug15.020226.5986@stanford.edu> Date: Tue, 15 Aug 1995 02:02:26 GMT References: <1995Aug13.122626.7786@earthlink.net> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Aug13.122626.7786@earthlink.net>, ksantos@earthlink.net (Kenji Santos) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Mike Takahashi *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0