Seamless audio transfer in a multi-processor audio system

A processing unit for an audio system of a vehicle comprising:

• a first processing node;
• a second processing node;
• a program memory designed to be overwritten by the first processing node and by the second processing node, wherein after the processing unit has started up, the first processing node computes and writes to the program memory an audio output;
• wherein the processing unit performs a handover of the computing of the audio output from the first processing node to the second processing node when the first processing node has overwritten the program memory up to a predefined point and the second processing node is operational;
• and
• wherein the second processing node computes the audio output after the handover and writes this audio output to the program memory.

A method for seamless handover of an audio output comprising:

• computing an audio output with a first processing node;
• overwriting a program memory with the computed audio output with the first processing node;
• handing over the computed audio output from the first processing node to a second processing node when the first processing node has overwritten the program memory up to a predefined point and when the second processing node is operational;
• computing the audio output with the second processing node;
• and
• overwriting the program memory with the computed audio output with the second processing unit.