UtilsGetLevel Method (Byte, Int32, Int32, Int32)

public static int GetLevel(
	byte[] buffer,
	int chans,
	int startIndex,
	int length
)

Public Shared Function GetLevel ( 
	buffer As Byte(),
	chans As Integer,
	startIndex As Integer,
	length As Integer
) As Integer

Parameters

buffer

Type: SystemByte
The 8-bit buffer to get the level from.

chans

Type: SystemInt32
The number of channels to use (1=mono, 2=stereo). In case of mono the left and right channel will contain the same value.

startIndex

Type: SystemInt32
The starting index (sample offset, not byte offset!) within the buffer from where to to get the level (use -1 to start from the beginning).

length

Type: SystemInt32
Number of samples (not bytes!) to use (startIndex + length must be less than the buffer size, use -1 to scan the whole buffer size).

Return Value

Structure of the return value (int = 32-bit):

|               32-bit              |
|    right-peak    |   left-peak    |

Each peak level ranges linearly from 0 (silent) to +32767 (max).

Reference