Specifies the channel matrix, which is used to convert the source channels into the destination channels (for example, to convert 5.1 to stereo).
Available only by using IPropertyStore.
VT_I4 | VT_ARRAY
The value of the property is a matrix of Ns x Nd coefficients, where Ns is the number of source channels and Nd is the number of destination channels. Coefficients are specified in decibels using the following formula:
The matrix is stored as an array in row-major order where the row number is the source channel and the column number is the destination channel.
Thus, if the matrix is the following:
00 01 ... 0(Ns-1) 10 11 ... 1(Ns-1) ... ... ... ... (Nd-1)0 (Nd-1)1 ... (Nd-1)(Ns-1)
then you would specify the array as:
[ 00, 01, ..., 0(Ns-1), 10, 11, ..., 1(Ns-1), ..., (Nd-1)0, (Nd-1)1, ..., (Nd-1)(Ns-1) ]
Minimum supported client
|Windows XP [desktop apps only]|
Minimum supported server
|Windows Server 2003 [desktop apps only]|
Build date: 11/16/2013