Obihai OBi110, Administration Manual

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Copyright 2010-2012 Obihai Technology, Inc. 149
t(f_0/on_0+off_0,f_1/on_1+off_1,f_2/on_2+off_2,f_3/on_3+off_3)
t : the cadence segment duration in seconds

Negative value: tone plays indefinitely

No value: tone plays indefinitely

Zero value: the duration of this particular segment is zero

Positive value: Normal playback duration
f_0/1/2/3 : a numerical describe which frequency component(s) are used for the synthesis, and it can be one of following 8
options (0 ~ 7)

0: No frequency specified, i.e., silent tone

1: The 1st frequency

2: The 2nd frequency

3: The 1st and 2nd frequencies

4: The 3rd frequency

5: The 1st and 3rd frequencies

6: The 2nd and 3rd frequencies

7: The 1st and 2nd frequencies if two or more than two frequency components, or the 1st frequency if only one
frequency component is available.
If no value is provided for f_0/1/2/3, it will automatically use the combination of the first one or two available frequency
components.
on_0/1/2/3 : the tone active time in seconds

Negative value: Not allowed

No value: infinite tone active time

Others: normal tone active time (up to 3 decimated digits)
off_0/1/2/3 : the tone inactive time in seconds

Negative value: Not allowed

No value: infinite tone inactive time

Others: normal tone inactive time (up to 3 decimated digits)
Example: 4(1/.3+2.34,3/2+1.5)
The above example illustrates using the first frequency to generate tone for 0.3 seconds, followed by 2.34 seconds of
silence, then use a combination of the first and second frequencies to generate tone for 2 seconds, then followed by 1.5
seconds silence. The cadence operates repeatedly for 4 seconds.