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V1.1 March 2019
Audio Settings
YM2612 High Quality Mode – The YM2612’s
waveforms are expressed digitally using 14 bits,
but they are truncated to 9 bits when sent to the
internal DAC. When this Mode is turned on,
the 14 bit waveforms are not truncated, producing
a higher quality sound. This option is likely to be
appreciated with high amplitude audio where 9 bits
are insufficient to express the full dynamic range
of which the audio is capable.
YM2612 Waveform – FM Synthesis works by one
or more waveforms modulating one or more other
waveforms. The YM2612 can only use a regular sine
wave, but other FM synthesizers like the YMF-262
could use other waveforms. By setting the value
of this parameter to something other than 0, you
can use many other waveforms for modulation:
0
Sine Wave
1
Half Sine
2
Rectified Sine
3
Quarter Sine
4
2x Sine
5
2x Rectified Sine
6
Square Wave
7
Exponential Wave
8
Clipped Sine
9
Half-Period Clipped Sine
10
Rectified Clipped Sine
11
Clipped Quarter Sine
12
2x Clipped Sine
13
2x Rectified Clipped Sine
14
Clipped Half Square
15
Half Exponent
16
Triangle Wave
17
Half Triangle
18
Rectified Triangle
19
Quarter Triangle
20
2x Triangle
21
2x Rectified Triangle
22
2x Rectified Square
23
2x Rectified Exponent
24
Sawtooth Wave
25
Half Sawtooth
26
Rectified Sawtooth
27
Quarter Sawtooth
28
2x Sawtooth
29
2x Half Sawtooth
30
2x Half Square
31
Half Exponent
The resulting sound may vary considerably from
what was intended, so the setting won’t be saved
when you Save Settings.