5.1ch音声のChannel Orderは以下のようになっているようです。 Front Left Channel - FL Front Right Channel - FR Front Center Channel - FC Surround Left Channel - SL Surround Right Channel - SR Low Frequency Effect Channel - LFE AC3 ch1-FL ch2-FC ch3-FR ch4-SL ch5-SR ch6-LFE AAC,DTS ch1-FC ch2-FL ch3-FR ch4-SL ch5-SR ch6-LFE WAV,FLAC,WMA ch1-FL ch2-FR ch3-FC ch4-LFE ch5-SL ch6-SR AIFF ch1-FL ch2-SL ch3-FC ch4-FR ch5-SR ch