[LAU] Play with latencies

Dominic Sacré dominic.sacre at gmx.de
Fri Dec 12 19:18:49 EST 2008


On Friday 12 December 2008 13:12:07 Jostein Chr. Andersen wrote:
> So here is the result of a wasted hour (hope every number is right),
> enjoy.
>
>   Time in  Length Note,
>        ms    in m 120 bpm Comments
> ======== ======= ======= ===========================================
>   1000.00  343.00     1/1 en.wikipedia.org/wiki/Speed_of_sound
>    500.00  171.50     1/2 Common delay speed (echo)
>    250.00   85.75     1/4            "
>    125.00   42.88     1/8            "
>    100.00   34.30
>     62.50   21.44    1/16 Distance between people in a big orch.
> *  46.40   15.92         Latency value
>     31.25   10.72    1/32 Wow, playing fast!
> *  23.20    7.96         Latency value
>     15.63    5.36    1/64 Playing real music that fast? Get a life!
> *  11.60    3.98         Latency value
>     10.00    3.43
>      7.81    2.68   1/128 Academic interest (musically)
> *   5.80    1.99         Latency value
>      5.00    1.72         Dist. from ear to foot
>      3.91    1.34   1/256
> *   2.90    0.99         Latency value (64 f/p, 44100, 2 p/b)
>      1.96    0.67   1/512
> *   1.45    0.50         Latency, common dist. to monitor
>      1.00    0.34         Not an uncommon distance to mic or wife
>      0.98    0.33  1/1024
> *   0.73    0.25         Latency value
>      0.49    0.17  1/2048 Still of academic interest (musically)

An interesting table to put things into perspective. The third column 
doesn't seem right though. As far as I can see, the actual note values are 
only half of those in the table (assuming bpm means quarters per minute, of 
course). Makes the latencies appear a lot less dramatic from a musical 
point of view :)


Dominic



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