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Added a DC offset for 6560 volume level, albeit one plucked from thin air.

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This commit is contained in:
Thomas Harte 2016-06-21 07:31:14 -04:00
parent 2d13802625
commit 106e56600d
1 changed files with 3 additions and 1 deletions
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4
Components/6560/6560.cpp
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@ -429,12 +429,14 @@ void MOS6560::Speaker::get_samples(unsigned int number_of_samples, int16_t *targ
update(2, 0, shift);
update(3, 1, increment);
// this sums the output of all three sounds channels plus a DC offset for volume;
// TODO: what's the real ratio of this stuff?
target[c] = (
(_shift_registers[0]&1) +
(_shift_registers[1]&1) +
(_shift_registers[2]&1) +
((noise_pattern[_shift_registers[3] >> 3] >> (_shift_registers[3]&7))&(_control_registers[3] >> 7)&1)
) * _volume * 700;
) * _volume * 700 + _volume * 44;
}
}