Patent ID: 9721574
Date: 2017-08-01
CPC Classifications: G10L

Claim:
1. A method by a computer processor for controlling a concealment method for a lost audio frame of a received audio signal, the method comprising: detecting in a property of a previously received and reconstructed audio signal a transient condition that could lead to suboptimal reconstruction quality, when an original concealment method is used to create a substitution frame; and modifying the original concealment method by selectively adjusting a spectrum magnitude of a substitution frame spectrum, when the transient condition is detected; further detecting in a statistical property of observed frame losses a second condition that could lead to suboptimal reconstruction quality, when the original concealment method is used to create the substitution frame; further modifying the original concealment method by selectively adjusting the spectrum magnitude of the substitution frame spectrum, when the second condition is detected; generating another reconstructed audible audio signal using the modified and further modified original concealment method; and providing the another reconstructed audible audio signal to signal processing circuitry.