Method and device for acute sound detection and reproduction

A device for adjusting a gain on a voice operated control system, comprising:

• a processor;
• and
• a memory having computer instructions, wherein the instructions, when executed by the processor, cause the processor to perform operations comprising:
• calculating a first slow time weighted ratio of a filtered first microphone signal and a filtered second microphone signal;
• calculating a first fast time weighted ratio of the filtered first microphone signal and the filtered second microphone signal;
• comparing, with a first threshold, a first absolute difference between the first fast time weighted ratio and the first slow time weighted ratio;
• calculating a second slow time weighted ratio of the filtered first microphone signal and a filtered third microphone signal;
• calculating a second fast time weighted ratio of the filtered first microphone signal and the filtered third microphone signal;
• comparing, with a second threshold, a second absolute difference between the second fast time weighted ratio and the second slow time weighted ratio;
• and
• adjusting the gain on the voice operated control system when the first absolute difference is greater than the first threshold or the second absolute difference is greater than the second threshold, wherein a voice activity status is utilized to control the gain on the voice operated control system and to adjust a level of a signal directed to a voice receiving system in communication with the voice operated control system.

A method of adjusting a gain on a voice operated control system, comprising:

• determining a slow time weighted ratio of a filtered first microphone signal and at least one of a filtered second microphone signal and a filtered third microphone signal;
• determining a fast time weighted ratio of the filtered first microphone signal and at least one of the filtered second microphone signal and the filtered third microphone signal;
• calculating an absolute difference between the fast time weighted ratio and the slow time weighted ratio;
• and
• adjusting a gain on the voice operated control system when the absolute difference is greater than a threshold, wherein a voice activity status is utilized to control the gain on the voice operated control system and to adjust a level of a signal directed to a voice receiving system in communication with the voice operated control system.