Sound mixture recognition

摘要

A sound mixture may be received that includes a plurality of sources. A model may be received that includes a dictionary of spectral basis vectors for the plurality of sources. A weight may be estimated for each of the plurality of sources in the sound mixture based on the model. In some examples, such weight estimation may be performed using a source separation technique without actually separating the sources.

主权项

1. A method comprising:
receiving, by a computing device, a sound mixture that includes a plurality of sources; receiving, by the computing device, a model that includes a dictionary of spectral basis vectors and a transition matrix that includes temporal information, representing a temporal dependency among the spectral basis vectors, for each of the plurality of sources, the model being computed using a source separation algorithm; estimating, by the computing device and based on the model, a weight of each of the plurality of sources in the sound mixture; and using the weights of the plurality of sources in the sound mixture by an application of the computing device to search the sound mixture for at least one of the plurality of sources of sound.