1. A method of synchronising a device with an audio signal having encoded pairs of code words embedded separately therein, each pair of code words including an ID code word and a synchronisation code word, the method comprising: receiving the audio signal with the encoded pairs of code words; synchronising the device with the audio signal by detecting: i) an ID code word and a synchronisation code word from one pair of code words; or ii) an ID code word from one pair of code words and a synchronisation code word from another pair of code words; and using a detected ID code word to retrieve timing information relating to an expected time for detected synchronisation code words and determining a difference in time between an expected time for a detected synchronisation code word and an actual time of the detected synchronisation code word and using the determined difference to synchronise the device to the audio signal.
1. A method of synchronising a device with an audio signal having encoded pairs of code words embedded separately therein, each pair of code words including an ID code word and a synchronisation code word, the method comprising: receiving the audio signal with the encoded pairs of code words; synchronising the device with the audio signal by detecting: i) an ID code word and a synchronisation code word from one pair of code words; or ii) an ID code word from one pair of code words and a synchronisation code word from another pair of code words; and using a detected ID code word to retrieve timing information relating to an expected time for detected synchronisation code words and determining a difference in time between an expected time for a detected synchronisation code word and an actual time of the detected synchronisation code word and using the determined difference to synchronise the device to the audio signal. 2. A method according to claim 1 , wherein the timing information defines an expected time relative to a defined point within the audio signal, such as the start of the audio signal.