Frequency routing based on orientation

A method comprising:

• receiving, by a playback device, an audio data stream;
• determining, via at least one orientation sensor of the playback device, a change in orientation of the playback device from a first orientation to a second orientation, wherein the determining comprises (i) detecting for a first rotation relative to a first axis of the playback device, (ii) detecting for a second rotation relative to a second axis of the playback device, and (iii) comparing the first and second rotations to at least one value of hysteresis;
• routing, by the playback device, a first set of frequencies in the audio data stream to at least one of a plurality of speaker drivers when the playback device is in the first orientation;
• routing, by the playback device, a second set of frequencies in the audio data stream to the at least one of the plurality of speaker drivers when the playback device is determined to be in the second orientation, wherein the first set of frequencies is different than the second set of frequencies;
• reproducing a stereophonic sound based on the audio data stream using the plurality of speaker drivers when the playback device is in the first orientation;
• and
• reproducing a monaural sound based on the audio data stream using the plurality of speaker drivers when the playback device is determined to be in the second orientation.

A tangible, non-transitory computer-readable memory having stored thereon that when executed cause a playback device to perform functions comprising:

• receiving, by the playback device, an audio data stream;
• determining, via at least one orientation sensor of the playback device, a change in orientation of the playback device from a first orientation to a second orientation, wherein the determining comprises (i) detecting for a first rotation relative to a first axis of the playback device, (ii) detecting for a second rotation relative to a second axis of the playback device, and (iii) comparing the first and second rotations to at least one value of hysteresis;
• routing, by the playback device, a first set of frequencies in the audio data stream to at least one of a plurality of speaker drivers when the playback device is in the first orientation;
• routing, by the playback device, a second set of frequencies in the audio data stream to the at least one of the plurality of speaker drivers when the playback device is determined to be in the second orientation, wherein the first set of frequencies is different than the second set of frequencies;
• reproducing a stereophonic sound based on the audio data stream using the plurality of speaker drivers when the playback device is in the first orientation;
• and
• reproducing a monaural sound based on the audio data stream using the plurality of speaker drivers when the playback device is determined to be in the second orientation.