Acoustic position measurement
First Claim
1. A media playback system, comprising:
- a control device comprising a first transducer;
a playback device comprising a second transducer;
a network microphone device including;
a microphone array;
one or more processors; and
;
tangible, non-transitory, computer-readable media storing instructions that, when executed by one or more processors, cause the network microphone device to perform operations comprising;
determining a first direction of the control device with respect to the network microphone device based at least in part on a first test sound received at the microphone array from the first transducer;
determining a second direction of the playback device with respect to the network microphone device based at least in part on a second test sound received at the microphone array from the second transducer; and
adjusting one or more beamforming parameters of the microphone array, wherein adjusting the one or more beamforming parameters causes the networking microphone device to amplify sound received at the microphone array from the first direction, and further causes the networking microphone device to attenuate sound received at the microphone array from the second direction.
4 Assignments
0 Petitions
Accused Products
Abstract
Example techniques for acoustic position measurement in an example listening environment are disclosed. An example implementation involves a control device including a first transducer, a playback device including a second transducer, and a network microphone device (NMD) including a microphone array. The NMD determines a first direction of the control device with respect to the NMD based at least in part on a first test sound received at the microphone array from the first transducer and determines a second direction of the playback device with respect to the NMD based at least in part on a second test sound received at the microphone array from the second transducer. The NMD adjusts one or more beamforming parameters of the microphone array thereby causing amplifying sound received at the microphone array from the first direction and attenuating sound received at the microphone array from the second direction.
262 Citations
20 Claims
-
1. A media playback system, comprising:
-
a control device comprising a first transducer; a playback device comprising a second transducer; a network microphone device including; a microphone array; one or more processors; and
;tangible, non-transitory, computer-readable media storing instructions that, when executed by one or more processors, cause the network microphone device to perform operations comprising; determining a first direction of the control device with respect to the network microphone device based at least in part on a first test sound received at the microphone array from the first transducer; determining a second direction of the playback device with respect to the network microphone device based at least in part on a second test sound received at the microphone array from the second transducer; and adjusting one or more beamforming parameters of the microphone array, wherein adjusting the one or more beamforming parameters causes the networking microphone device to amplify sound received at the microphone array from the first direction, and further causes the networking microphone device to attenuate sound received at the microphone array from the second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A network microphone device including:
-
a microphone array; one or more processors; and
;tangible, non-transitory, computer-readable media storing instructions that, when executed by one or more processors, cause the network microphone device to perform operations comprising; determining a first direction of a control device of a media playback system with respect to the network microphone device based at least in part on a first test sound received at the microphone array from the control device; determining a second direction of a playback device with respect to the network microphone device based at least in part on a second test sound received at the microphone array from the playback device; and adjusting one or more beamforming parameters of the microphone array, wherein adjusting the one or more beamforming parameters causes the networking microphone device to amplify sound received at the microphone array from the first direction, and further causes the networking microphone device to attenuate sound received at the microphone array from the second direction. - View Dependent Claims (12, 13, 14, 15, 16)
-
-
17. A method of operating a network microphone device having a microphone array, the method comprising:
-
determining a first direction of a control device of a media playback system with respect to the network microphone device based at least in part on a first test sound received at the microphone array from the control device; determining a second direction of a playback device with respect to the network microphone device based at least in part on a second test sound received at the microphone array from the playback device; and adjusting one or more beamforming parameters of the microphone array, wherein adjusting the one or more beamforming parameters causes the networking microphone device to amplify sound received at the microphone array from the first direction, and further causes the networking microphone device to attenuate sound received at the microphone array from the second direction. - View Dependent Claims (18, 19, 20)
-
Specification