Abstract: A computer implemented method for reducing the Turn around time (TAT) for transcription of audio source file, comprises steps of receiving source audio file and passing the source audio file through integrated Automatic Speech Recognition (ASR) engine and silent node detector for converting the source audio file to output text, improving the output text by machine learning, segmenting the output text file to text chunks at silent nodes, filtering and classifying the segmented text chunks to high confidence score chunks and low confidence score chunks, on basis of predetermined threshold confidence score, distributing the text chunks with low confidence score and corresponding audio chunks to multiple users for correction and merging the corrected text with the text chunks having the high confidence score to obtain a final single text output file that is synchronous with source audio file.