Methods and Systems for Automatic Enablement or Disablement of Noise Reduction Within A Communication Device

A system for controlling noise reduction feature of at least one communication device, the at least one communication device adapted to receive an input audio signal, the system comprising:

• a Voice Activity Detector (VAD) adapted to check if the input audio signal is a noise signal, based on the checked data of the input audio signal the VAD is adapted to be “OFF” if the input audio signal is a noise signal, and is adapted to be “ON” if the input audio signal is a speech signal;
• and
• a machine adapted to be communicably coupled to the VAD, the machine comprising:
• at least one receiver adapted to receive the input audio signal from the communication device via the VAD,
• a memory adapted to store program instructions,
• a noise reduction module adapted to receive the input audio signal there-through directed by the VAD, wherein the noise reduction module at the VAD “OFF” is adapted to receive and process the input audio signal to reduce disturbances due to background noise to transmit a clear audio signal therefrom, and wherein the noise reduction module at the VAD “ON” is by-passed by the input audio signal keeping the quality of the input audio signal unaffected;
• a micro-processor adapted to be functionally coupled to the VAD and the memory to process the program instructions stored in the memory, the micro-processor having,
• a setting module adapted to set a threshold value, the threshold value set at beginning of conversation, while conversation using the communication device and while production of the communication device,
• a calculating module adapted to cyclically calculate a Root Mean Square (RMS) value of the input audio signal received from the communication device,
• a comparator module adapted to compare the threshold value and the RMS value to obtain a single decision value, and
• a decision module adapted to store in the memory, a single decision value corresponding to either enabling or disabling the noise reduction module of the communication device, the decision value corresponds to disabling the noise reduction module if the RMS value is less than the threshold value, and the decision value corresponds to enabling the noise reduction module if the RMS value is greater than the threshold value, and
• a control module functionally coupled to the VAD, the micro-processor and the noise reduction module to enable or disable the noise reduction module of the communication device based on the decision value, in case the VAD is “OFF.”