Audible alerts via ST ELITE is something you'll have to suggest to ST directly. Sound is one of the areas outside the parameters within which Trade-Ideas operates inside ST ELITE. The standalone version of Trade-Ideas (TI PRO) does have sound capabilities in the Alert Window Actions menu under Tools > Options.
As far as the Parabolic SAR alerts, we've noted it in our Development Queue. These items get shuffled and re prioritized based on a number factors including how many customers ask for it and its level of difficulty (or ease).
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