Patent ID: 7596486

Claim:
A method for encoding an audio signal, wherein at least a first coder mode and a second coder mode are available for encoding a respective section of said audio signal, said method comprising: encoding via a second coder mode portion, a first section of an audio signal after a switch from said first coder mode to said second coder mode always using a first coding model, said second coder mode enabling a coding of a respective section of said audio signal based on at least two different coding models, wherein said first one of said coding models does not require for an encoding of a respective section of said audio signal information from a preceding section of said audio signal, and wherein a second one of said coding models requires for an encoding of a respective section of said audio signal an overlap signal with information from a preceding section of said audio signal; selecting for further sections of said audio signal the respectively best suited coding model; generating via said second coder mode portion, an artificial overlap signal based on information from said first section, at least in case said second coding model has been selected for encoding a subsequent section of said audio signal; and encoding said further sections using the respectively selected coding model.