Selective suppression of audio emitted from an audio source

摘要

Methods, apparatus, systems and articles of manufacture (e.g., physical storage media, such as storage devices and/or storage disks) to implement selective suppression of audio emitted from an audio source are disclosed. Example methods disclosed herein for audio suppression include obtaining, at a first time, reference audio data corresponding to a first audio signal, the first audio signal to be output by an audio source at a second time later than the first time. Such example methods can also include processing the reference audio data to generate a suppression signal to be output by a speaker associated with a user device to suppress the first audio signal when received at the user device at a third time later than the first time. Such example methods can further include providing the suppression signal to an audio output driver in communication with the speaker.

主权项

1. A method for audio suppression, the method comprising:
obtaining, at a first time, reference audio data corresponding to a first audio signal, the first audio signal to be output by an audio source at a second time later than the first time; processing, with a processor, the reference audio data to generate a suppression signal to be output by a speaker associated with a user device to suppress the first audio signal when the first audio signal is received at the user device at a third time later than the first time, the processing including:
estimating a second time delay determined to compensate for an audio propagation delay between the audio source and the user device, the audio propagation delay corresponding to a difference between the second time and the third time;delaying the reference audio data by a first time delay and the second time delay; andinverting the reference audio data; and providing the suppression signal to an audio output driver in communication with the speaker.