B_CHANNEL_BACK_CENTER
{ "Back Center", 1, B_CHANNEL_BACK_CENTER },
{ B_CHANNEL_BACK_CENTER, B_CHANNEL_SURROUND_BUS },
format->channel_mask = B_CHANNEL_LEFT | B_CHANNEL_RIGHT | B_CHANNEL_REARLEFT | B_CHANNEL_REARRIGHT | B_CHANNEL_CENTER | B_CHANNEL_SUB | B_CHANNEL_BACK_CENTER;
DECODE(B_CHANNEL_BACK_CENTER, "Back-Center");
if (channelMask & B_CHANNEL_BACK_CENTER) {
| B_CHANNEL_BACK_CENTER },
{ "Center", B_CHANNEL_BACK_CENTER | B_CHANNEL_CENTER