Hi there -- can anyone help me get speech synthesis working as an Audio Unit?  I did it &quot;without&quot;, but discovered it was not recorded when using au:start-audio-capture...therefore, I want to set it up using an AU.<div>
<br></div><div>Seems there are a few options, but the most tantalizing is the speech AU in OS X 10.5...(don&#39;t need to use NetReceive)  But I&#39;m not sure how to get it to talk...I need to get the relevant &quot;channel&quot;, but am not familiar enough with this stuff to know exactly how...</div>
<div><br></div><div><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #7a12ff"></p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #b34c00"><span style="color: #000768">(</span><span style="color: #990000">define</span><span style="color: #000768"> </span>speech<span style="color: #000768"> (</span>au:make-node<span style="color: #000768"> </span><span style="color: #7a12ff">&quot;augn&quot;</span><span style="color: #000768"> </span><span style="color: #7a12ff">&quot;ttsp&quot;</span><span style="color: #000768"> </span><span style="color: #7a12ff">&quot;appl&quot;</span><span style="color: #000768">))</span></p>

<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #b34c00"><span style="color: #000768">(</span><span style="color: #990000">define</span><span style="color: #000768"> </span>reverb<span style="color: #000768"> (</span>au:make-node<span style="color: #000768"> </span><span style="color: #7a12ff">&quot;aufx&quot;</span><span style="color: #000768"> </span><span style="color: #7a12ff">&quot;mrev&quot;</span><span style="color: #000768"> </span><span style="color: #7a12ff">&quot;appl&quot;</span><span style="color: #000768">))</span></p>

<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #b34c00"><span style="color: #000768">(</span>au:connect-node<span style="color: #000768"> </span>speech<span style="color: #000768"> </span><span style="color: #0000ff">0</span><span style="color: #000768"> </span>reverb<span style="color: #000768"> </span><span style="color: #0000ff">0</span><span style="color: #000768">)</span></p>

<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #b34c00"><span style="color: #000768">(</span>au:connect-node<span style="color: #000768"> </span>reverb<span style="color: #000768"> </span><span style="color: #0000ff">0</span><span style="color: #000768"> </span>*au:output-node*<span style="color: #000768"> </span><span style="color: #0000ff">0</span><span style="color: #000768">)</span></p>

<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #b34c00"><span style="color: #000768">(</span>au:update-graph<span style="color: #000768">)</span></p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #b34c00"><span style="color: #000768">(</span>au:print-graph<span style="color: #000768">)</span></p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #000768; min-height: 16.0px"><br></p>
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #b34c00"><span style="color: #000768">(</span><span style="color: #990000">define</span><span style="color: #000768"> </span>voice1<span style="color: #000768"> (</span>au:get-speech-channel<span style="color: #000768">)) ; this is wrong, I think...?</span></p>

<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; color: #000768; min-height: 16.0px"><span class="Apple-style-span" style="color: rgb(179, 76, 0); "><span style="color: #000768">(</span>au:speak<span style="color: #000768"> (</span>now<span style="color: #000768">) </span>voice1<span style="color: #000768"> </span><span style="color: #7a12ff">&quot;Ree-verby!&quot;</span><span style="color: #000768">) ; seems to use a non-AU voice channel</span></span><br>
</p><div><span class="Apple-style-span" style="color: rgb(0, 7, 104);"><span class="Apple-style-span" style="color: rgb(0, 0, 0); font-family: arial; font-size: 13px; "><div><br></div><div>I think I&#39;d need to use au:get-property on property 3331 (kAudioUnitProperty_SpeechChannel), but am not sure exactly how to set things up using NSMutableData and all that...or even if that&#39;s the right approach.  Or do I need to use the system call &quot;say -n&quot; and NetReceive AUnit to get this going?</div>
<div><br></div><div>Thanks for any tips,</div><div>Glen.</div><div><br></div><div><br></div><div><br></div></span></span></div><p></p></div>