Leadtools.Multimedia Namespace > Constants Class : Filter_AMR_Encoder Field |
[MarshalAsAttribute(UnmanagedType.U1 | UnmanagedType.LPStr)] public const string Filter_AMR_Encoder
'Declaration <MarshalAsAttribute(UnmanagedType.U1 Or _ UnmanagedType.LPStr)> Public Const Filter_AMR_Encoder As String
[MarshalAsAttribute(UnmanagedType.U1 | UnmanagedType.LPStr)] public const string Filter_AMR_Encoder
MarshalAsAttribute(UnmanagedType.U1 | UnmanagedType.LPStr) var Filter_AMR_Encoder
[MarshalAsAttribute(UnmanagedType.U1 | UnmanagedType.LPStr)] public: const String^ Filter_AMR_Encoder
The LEAD AMR Encoder is a DirectShow filter for compressing audio data using AMR speech compression. The AMR speech coder consists of a multi-rate speech coder, a source-controlled rate scheme including a voice activity detector and a comfort noise generation system, and an error concealment mechanism to combat the effects of transmission errors and lost packets.
The multi-rate speech coder is a single integrated speech codec with eight source rates from 4.75 kbps to 12.2 kbps, and a low rate background noise encoding mode. The speech coder is capable of switching its bit-rate every 20 ms speech frame upon command.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2