Abstract: An IP speaker system is disclosed that includes an IP speaker connected to one or more external analog speakers. The IP speaker comprises a CPU that provides an audio data stream for transmission to a first amplifier and a second amplifier. The first amplifier outputs a first analog audio signal at a first power level for driving an internal driver of the IP speaker, and the second amplifier outputs a second analog audio signal at a second power level for driving one or more external drivers of the one or more external analog speakers. The CPU supervises the one or more external analog speakers so as to detect any speaker failure, disconnection, short or other change in operational status. The IP speaker also comprises a power circuit that receives electrical power transmitted over a network cable as its input power and provides output power available for consumption by the IP speaker and the one or more external analog speakers.

Abstract: Methods and systems are provided for searching audio records. Certain embodiments of the invention may be applied to search audio records containing a user's voice for instances where a specific sound, such as a word or phrase, is vocalized by the user. An audio sample is provided by recording the user vocalizing the sound. The audio sample is compared with the audio records to locate matches to the audio sample. In some embodiments, the audio records comprise recordings of calls between a near-end caller and a far-end caller, and the audio sample is a recording of a sound spoken by the near-end caller. The same input device may be used to record both the audio sample and the audio records.