Metadata-based diarization of teleconferences

Apparatus for audio processing, comprising:

• a memory, which is configured to store a recording of a teleconference among multiple participants over a network including an audio stream containing speech uttered by the participants and conference metadata for controlling a display on video screens viewed by the participants during the teleconference;
• and
• a processor, which is configured to process the audio stream so as to identify speech segments, in which one or more of the participants were speaking, interspersed with intervals of silence in the audio stream, to parse the conference metadata so as to extract speaker identifications, which are indicative of the participants who spoke during successive periods of the teleconference, and to diarize the teleconference by labeling the identified speech segments from the audio stream with the speaker identifications extracted from corresponding periods of the teleconference.

A computer software product, comprising a non-transitory computer-readable medium in which program instructions are stored, which instructions, when read by a computer, cause the computer to store a recording of a teleconference among multiple participants over a network including an audio stream containing speech uttered by the participants and conference metadata for controlling a display on video screens viewed by the participants during the teleconference, and to process the audio stream so as to identify speech segments, in which one or more of the participants were speaking, interspersed with intervals of silence in the audio stream, to parse the conference metadata so as to extract speaker identifications, which are indicative of the participants who spoke during successive periods of the teleconference, and to diarize the teleconference by labeling the identified speech segments from the audio stream with the speaker identifications extracted from corresponding periods of the teleconference.