<p>To echo some of the sentiments above:</p>

<p>I think if you separate the more implementation based questions from the more abstract statistical questions you will find <em>cross-validated</em> more useful. </p>

<p>I come from a related signal processing background to speech but find the <em>dsp.stackexchange</em> site far to focused on implementation and so for more methodological questions around the HMM theory, signal processing approach etc <em>cross-validated</em> is far more useful. For questions (such 6. above) on particularly software packages or other issues with implementation such as bugs, <em>dsp.stackexchange</em> or even <em>stackoverflow</em> might be more useful.</p>
