Enhancing audio using a mobile device
First Claim
1. A method performed by a mobile device for improving audio quality of an audio system comprising of a source device and at least one rendering device by calibrating the at least one rendering device, the method comprising:
- determining by a processing unit of the mobile device, one or more frequency characteristics of at least one microphone of the mobile device;
sending, by the mobile device, a calibration signal to the source device for playback by the at least one rendering device;
capturing, by the at least one microphone of the mobile device, the calibration signal played back by the at least one rendering device;
calculating, by the mobile device, an impulse response for the calibration signal played back by the at least one rendering device based at least on the determined one or more frequency characteristics of the at least one microphone;
determining calibration settings based at least on the impulse response; and
providing the determined calibration settings to the source device for application thereby.
6 Assignments
0 Petitions
Accused Products
Abstract
Embodiment disclosed herein enable detection and improvement of the quality of the audio signal using a mobile device by determining the loss in the audio signal and enhancing audio by streaming the remainder portion of audio. Embodiments disclosed herein enable an improvement in the sound quality rendered by rendering devices by emitting an test audio signal from the source device, measuring the test audio signal using microphones, detecting variation in the frequency response, loudness and timing characteristics using impulse responses and correcting for them. Embodiments disclosed herein also compensate for the noise in the acoustic space by determining the reverberation and ambient noise levels and their frequency characteristics and changing the digital filters and volumes of the source signal to compensate for the varying noise levels.
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Citations
21 Claims
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1. A method performed by a mobile device for improving audio quality of an audio system comprising of a source device and at least one rendering device by calibrating the at least one rendering device, the method comprising:
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determining by a processing unit of the mobile device, one or more frequency characteristics of at least one microphone of the mobile device; sending, by the mobile device, a calibration signal to the source device for playback by the at least one rendering device; capturing, by the at least one microphone of the mobile device, the calibration signal played back by the at least one rendering device; calculating, by the mobile device, an impulse response for the calibration signal played back by the at least one rendering device based at least on the determined one or more frequency characteristics of the at least one microphone; determining calibration settings based at least on the impulse response; and providing the determined calibration settings to the source device for application thereby. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer program product comprising computer executable program code recorded on a computer readable non-transitory storage medium, said computer executable program code when executed, causing a method performed by a mobile device for improving audio quality of an audio system comprising of a source device and at least one rendering device by calibrating the at least one rendering device, the method comprising:
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determining by a processing unit of the mobile device, one or more frequency characteristics of at least one microphone of the mobile device; sending, by the mobile device, a calibration signal to the source device for playback by the at least one rendering device; capturing, by the at least one microphone of the mobile device, the calibration signal played back by the at least one rendering device; calculating, by the mobile device, an impulse response for the calibration signal played back by the at least one rendering device based at least on the determined one or more frequency characteristics of the at least one microphone; determining calibration settings based at least on the impulse response; and providing the determined calibration settings to the source device for application thereby. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A mobile device configured to improve audio quality of an audio system comprising of a source device and at least one rendering device by calibrating the at least one rendering device, the mobile device comprising:
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a microphone; and a processing unit configured to; determine one or more frequency characteristics of the microphone; send a calibration signal to the source device for playback by the at least one rendering device; capture, by the microphone, the calibration signal played back by the at least one rendering device; calculate an impulse response for a calibration signal played back by the at least one rendering device based at least on the determined one or more frequency characteristics of the microphone; determine calibration settings based at least on the impulse response; and provide the determined calibration settings to the source device for application thereby. - View Dependent Claims (20, 21)
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Specification