9. The computer readable storage device of claim 8 , wherein suppressing, by the mobile device, operation of a speech synthesis module implemented by the mobile device comprises initiating a reduction in an audio output level of the speech synthesis module.
9. The computer readable storage device of claim 8 , wherein suppressing, by the mobile device, operation of a speech synthesis module implemented by the mobile device comprises initiating a reduction in an audio output level of the speech synthesis module. 10. The computer readable storage device of claim 9 , wherein initiating a reduction in an audio output level of the speech synthesis module comprises interrupting output of the speech synthesis module.