Abstract: Techniques for determining whether audio is machine-outputted or non-machine-outputted are described. A device may receive audio, may process the audio to determine audio data including audio features corresponding to the audio, and may process the audio data to determine audio embedding data. The device may process the audio embedding data to determine whether the audio is machine-outputted or non-machine-outputted. In response to determining that the audio is machine-outputted, then the audio may be discarded or not processed further. Alternatively, in response to determining that the audio is non-machine-outputted (e.g., live speech from a user), then the audio may be processed further (e.g., using ASR processing).

Abstract: Disclosed is a high efficiency whole house or building air conditioner utilizing condensate water dripped onto the condenser to subcool the heat exchange fluid in the condenser.

Abstract: Disclosed is a high efficiency whole house or room air conditioner having an auxiliary heat exchanger in the liquid line between the condenser and the expansion device where the coolant fluid utilized in the auxiliary heat exchanger is condensate water produced by the evaporator. Also disclosed is a substantially dripless window or wall mounted air conditioner having an auxiliary heat exchanger in the hot gas line between the compressor and the condenser where the coolant fluid utilized in the auxiliary heat exchanger is condensate water and the condensate water coolant fluid is converted to a substantial extent to the gaseous phase by heat exchange with the hot gas line from the compressor.