/[svn]/doc/docbase/instrument_scripts/nksp/reference/functions/nksp_change_vol_time_function.html
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revision 3196 by schoenebeck, Sat May 20 14:27:01 2017 UTC revision 3217 by schoenebeck, Thu May 25 16:28:34 2017 UTC
# Line 41  change_vol_time(??note??, ??duration-us? Line 41  change_vol_time(??note??, ??duration-us?
41      <p>None.</p>      <p>None.</p>
42    
43      <h3>Examples</h3>      <h3>Examples</h3>
44      <p>None yet.<p>      <p>The following example demonstrates a simple, custom volume envelope generator.</p>
45        <code>
46    on init
47      declare const $time1US := 800000 { 0.8 seconds }
48      declare const $time2US := 1600000 { 1.6 seconds }
49      declare const $time3US := 3000000 { 3 seconds }
50    end on
51    
52    on note
53      { Start the note with a (immediately) decreased volume
54        of -30 dB. }
55      change_vol($EVENT_ID, -30000)
56    
57      { Fade the note's volume within 0.8s from -30 db up to
58        its normal volume, that is to 0 dB. }
59      change_vol_time($EVENT_ID, $time1US)
60      change_vol($EVENT_ID, 0)
61    
62      { Remain in this stage with 0 dB for 1.6 seconds. }
63      wait($time1US + $time2US)
64    
65      { Now fade the note's volume from 0 dB down to -12 dB
66        within 3 seconds. }
67      change_vol_time($EVENT_ID, $time3US)
68      change_vol($EVENT_ID, -12000)
69    end on
70        </code>
71            
72      <h3>See also</h3>      <h3>See also</h3>
73      <p><code>change_vol()</code>, <code>fade_in()</code>, <code>fade_out()</code><p>      <p><code>change_vol()</code>, <code>fade_in()</code>, <code>fade_out()</code><p>
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