Patent ID: 9008639
Filing Date: 2015-04-14
Classification: G11B,H04M

Abstract:
1. A method comprising: in a mobile communications device: before beginning to produce an audio signal, receiving information indicative of acceleration of the mobile communications device; after beginning to produce the audio signal, receiving information indicative of acceleration of the mobile communications device; with the received information indicative of acceleration after beginning to produce the audio signal, generating an acceleration data window, the acceleration data window comprising a number of acceleration data samples; with the acceleration data window, determining correlation between the information indicative of acceleration of the mobile communications device after beginning to produce the audio signal and exemplar whack event data, wherein the correlation after beginning to produce the audio signal is adjusted based on the received information indicative of acceleration before beginning to produce the audio signal; and based at least on the correlation, controlling the audio signal of the mobile communications device.