ppqn OUTPUT resolution ?

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toyL

toyL

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about 10 yrs ago I was "up" to speed on audio boards...I realize that todays boards with their DSP engines, PCI bus architecture, specialty memories and so on, are much improved compared to the late 80's & early 90's....I'm trying to remember what a "decent" OUTPUT resolution value was back then--I want to say a value at or above 100 ppqn (parts per quarter note) was considered good (or maybe it was 1000ppqn)....anyhow, problem was, and I'm beginning to see it still is, the manufacturers never included this measurement on the specs page of the owners-man--they still only use the reference of 16bit or 24bit or 48bit "processing", which has little or nothing to with the actual OUTPUT resolution....my question--for those of YOU who have actually phoned the techies at the manufacturer and asked, or for those of YOU who have been fortunate to read an article which compares the OUTPUT resolution, measured in ppqn, of various boards.....what is a "good" value here for today's boards?....OUTPUT resolution is important to me because I plan on sending my finished tunes to a DAT machine for tape storage and distribution of these tapes as demos through my agent/lawyer....of course, I assume I'll be buying some rather expensive (optical?) line connections to maintain the integrity of the digital OUT data lines leading IN to the DAT mach.--so, here's the second question--which manufacturer has the most efficient/accurate optical cables for this purpose?...
thanks in advance to anyone who takes the time to "correct" any errors in my thinking so far--i.e. I'm not really sure I'm on the right track here, so, any help at all is welcome....thanks again.
toyL----toil for work---toy for play.
 
PPQN is a useless measurement for this purpose, as it varies depending on the tempo and time signature. For example, with a quarter note at 60 bpm in 4/4 time, there's 1 sec. per quarter note, so a PPQN of 480 means each tick is 1/480th of a second apart. Double the tempo, and each tick is 1/960th of a second apart. It's really only a useful spec for MIDI sequencers and has nothing to do with digital audio specs.
 
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