We're getting OT here, but I think my comment on the audiologists was misunderstood. I don't think what either Primeau or Owen did for the Sentinal is worth beans. As IANAL, I can't say that as a judge I would rule their testimony inadmissible. But as someone who knows a lot about audio, I am confident that as a defense council I could rip any testimony similar to what they offered the OS into teeny tiny shreds on cross.
So my post was not an endorsement of either fellow, merely my admittedly anecdotal impression of how well the legal system seems to adhere to rigorous scientific standards in the category of expert testimony (i.e. not very).
And as I said, I doubt the prosecution will call any voice analysis expert. They don't have to. They have GZ "Help me! Help me!" exemplar recording whch is so obviously different from the screams on W3's 911 that no expert testimony is required for the jury to draw conclusions from it.