| CPC H04R 5/023 (2013.01) [H04R 1/1008 (2013.01); H04S 7/303 (2013.01)] | 16 Claims |

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9. A method for presenting audio sounds by an information handling system relative to a chair having an ear level, the method comprising:
deploying plural speakers above and behind the chair ear level;
deploying plural speakers below and behind the chair ear level;
deploying plural speakers above and in front of the chair ear level;
deploying plural speakers below and in front of the chair ear level; presenting audio information as sounds from all of the plural speakers adjusted in timing for a state space of all of the plural speakers relative to the chair;
placing an audio device on the end user shoulders; and
playing ultrasonic audio sounds from the audio device towards the end user head, the ultrasonic audio sounds resolving to audible sounds upon impact with the head;
detecting audible sounds that reflect from the head with plural microphones of the audio device; and
analyzing the reflected sounds to determine changes in head position.
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