Patent ID: 8380334

Claim:
A machine comprising: a surround sound system including at least six audio signals corresponding to a Left Front, a Right Front, a Center, a Left Surround, a Right Surround, and a Low Frequency Effect (LFE), and configured to insert auxiliary data into a combination audio signal including data from the LFE audio signal without loss of data from the LFE audio signal, the system including: a modulator configured to convert an auxiliary data signal received by the surround sound system into a modulated auxiliary data signal having a passband within the audio passband and within the passband of at least one of the Left Front, the Right Front, the Center, the Left Surround, or the Right Surround audio signals of the surround sound system, but outside the passband of the LFE audio signal as received by the surround sound system; and summing means configured to combine the modulated auxiliary data signal and the LFE audio signal into the combination signal without loss of data from the LFE audio signal as received by the surround sound system.