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POPython Microsoft Speech API Error: SPERR_NO_DRIVER from CmdLoadFromFile
 

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    <p>This question may well go unanswered, but I would dearly like some help on the matter. I found a snippet of code for dealing with Microsoft's Speech API in Python, and then went and learned about W3C's "<a href="http://www.w3.org/TR/speech-grammar/" rel="nofollow">Speech Recognition Grammar Specification Version 1.0</a>".</p> <p>I boiled it down to this:</p> <pre><code>&gt;&gt;&gt; import win32com.client &gt;&gt;&gt; listener = win32com.client.Dispatch("SAPI.SpSharedRecognizer") &gt;&gt;&gt; context = listener.CreateRecoContext() &gt;&gt;&gt; grammar = context.CreateGrammar() &gt;&gt;&gt; grammar.DictationSetState(0) &gt;&gt;&gt; grammar.CmdLoadFromFile("C:\\grammar.grxml") Traceback (most recent call last): File "&lt;pyshell#1&gt;", line 1, in &lt;module&gt; grammar.CmdLoadFromFile("C:\\grammar.grxml") File "C:\Python26\lib\site-packages\win32com\gen_py\C866CA3A-32F7-11D2-9602-00C04F8EE628x0x5x4.py", line 2372, in CmdLoadFromFile , LoadOption) com_error: (-2147352567, 'Exception occurred.', (0, None, None, None, 0, -2147201021), None) </code></pre> <p>From what I've been able to uncover, the above error code corresponds to "SPERR_NO_DRIVER", which has something to do with "<a href="http://msdn.microsoft.com/en-us/library/ee431883%28v=vs.85%29.aspx" rel="nofollow">There is no wave driver installed.</a>"</p> <p>I am now stuck. I have no idea what, in this context, a wave driver is, nor where to find it or how to debug it etc... Any thoughts?</p>
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