"line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="comment">// f = (Q1n15)(((Q16n16_2PI*centre_freq)&gt;&gt;AUDIO_RATE_AS_LSHIFT)&gt;&gt;1);</span></div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    f = (Q15n16)((<a class="code" href="group__fixmath.html#ga4bf1124c7bdac767263b2037211933e3">Q16n16_2PI</a> * centre_freq) &gt;&gt;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;                 (AUDIO_RATE_A