3.2.5.3.1 Processing a Format Change PDU

The structure and format of the Format Change PDU are specified in section 2.2.4.1.

The Format Change PDU indicates that the server requires the client to use a different audio format to encode audio data. The client MUST change the current audio format to the value contained in the NewFormat field, which is an index into the negotiated audio formats list. The client MUST also confirm the format change by replying with a Format Change PDU. After sending a Format Change PDU, all audio data MUST be encoded using the new format until the server requests another format change.