COMPLEX SIGNAL ACTIVITY DETECTION FOR IMPROVED SPEECH/NOISE CLASSIFICATION OF AN AUDIO SIGNAL

摘要

PERCEPTUALLY RELEVANT NON-SPEECH INFORMATION CAN BE PRESERVED DURING ENCODING OF AN AUDIO SIGNAL BY DETERMINING WHETER THE AUDIO SIGNAL INCLUDES SUCH INFORMATION (122, 124, 125). IF SO, A SPEECH/ NOISE CLASSIFICATION OF THE AUDIO SIGNAL IS OVERRIDDEN (43) TO PREVENT MISCLASSIFICATION OF THE AUDIO SIGNAL AS NOISE.(FIGURE 1)