DSP Blockset

Deconstructing Multichannel Frame-Based Signals

A frame-based signal with N channels and frame size M is represented by a sequence of M-by-N matrices. (The special case of N = 1 represents a single-channel signal.) There are two basic ways to deconstruct a multichannel frame-based signal:

• Split the channels into independent signals -- The constituent channels of a multichannel frame-based signal can be extracted to form individual frame based signals (with the same frame rate and size) by using the Multiport Selector block in the Indexing library (in Signal Management).

  

• Unbuffer the samples -- Multichannel frame-based signals can be unbuffered into multichannel sample-based signals using the Unbuffer block in the Buffers library (in Signal Management).

  

The following sections explain the two methods of deconstructing multichannel frame-based signals:

• Splitting a Multichannel Signal into Individual Signals
• Unbuffering a Frame-Based Signal into a Sample-Based Signal

The final section explains how to reorder the channels in a frame-based signal without splitting the channels apart:

• Reordering Channels in a Frame-Based Multichannel Signal

Deconstructing a Sample-Based Multichannel Signal into a Related Multichannel Signal

Splitting a Multichannel Signal into Individual Signals