Method and device for estimating sound recognition score (SRS) of a subject

An estimating device for determining performance of an Augmented Listening Device (ALD) by estimating Sound Recognition Score (SRS) of a subject, the device comprising:

• a processor;
• and
• a memory communicatively coupled to the processor, wherein the memory stores processor-executable instructions, which, on execution, causes the processor to:
• select a plurality of audio signals and a plurality of ambient noise signals from the memory based on one or more parameters related to speech and environment;
• generate a plurality of stimulus signals by modulating each audio signal with a corresponding ambient noise signal, wherein the stimulus signal is stored in the memory;
• transmit each of the stimulus signals to the ALD, wherein the ALD is configured to provide each stimulus signal to the subject, wherein one or more read counters are associated with the memory and are updated upon each stimulus signal transmitted to the ALD;
• receive a response for each of the stimulus signals transmitted to the ALD, wherein one or more response counters are associated with the memory and are updated upon each response received;
• estimate the SRS based on a cumulative sum of values of the read counter and the response counter;
• and
• display the estimated SRS on a display unit.