Method for transmitting a digital audio signal

摘要

The invention relates to a method for transmitting a digital audio signal between an electronic device (1) and an expansion card (13) connected to a expansion card connection (8a) in the electronic device. The expansion card (13) comprises at least one data transmission bus (20) for transmitting control and data signals, means (16) for processing digital signals, and an expansion card connection (8b). The expansion card (13) comprises further a second data transmission bus (21), wherein digital audio signals are transmitted via said second data transmission bus (21).