 x is a Q8n8 fractional</span></div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="comment">fixed-point exponent. It&#39;s less accurate than pow(2,x), but useful where a</span></div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="comment">tradeoff between accuracy and speed is required to keep audio from glitching.</span></div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comm