ENHANCING AUDIO USING A MOBILE DEVICE

摘要

Embodiments 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.

主权项

1. A method, performed by a mobile device, for improving quality of an audio signal being played back by an audio system that includes a source device and at least one rendering device, the method comprising:
measuring ambient noise characteristics of an acoustic space; calculating a frequency response of the ambient noise characteristics; calculating a digital filter based on the calculated frequency response; and communicating settings related to the digital filter to the source device, the source device being configured to perform adjustments to improve the audio signal based on the settings.