The Time Multiplexer combines multiple input audio signals into one audio signal by dividing the input channels into equal fixed-length time slots and mix them into a common output channel with fading between channels. The length of the time slots and the fading characteristic can be configured during runtime. The output signal is the signal of one input channel at a time. If the last input channel is reached, the next input channel will be the first input channel again. Depending on the fading mode, there might be one block length of fading between 2 channels.
In the SFD, users can select the following object parameters at design time:
- number of input channels
Tuning
This object exposes four tuning parameters to the GTT:
Mode
- Mode – The mode can be set to:
- Normal mode – performing multiplexing
- Active channel mode – single channel passed to the output
- Off – no output
- Multiplex number of blocks – Only evaluated in “Normal mode”. It presents number of blocks (block length) after which to switch to next input.
- Fading mode – Only evaluated in “Normal mode”. It sets a type of fading method:
- Cosine square fading
- Linear fading
- No fading (hard switch)
- Active channel –
- If in mode “Active channel mode” – The channel number of the input channel that will be routed to the output channel.
- If in mode “Normal mode” – Set the selected channel as current input and continue with next channel in normal/multiplex mode after configured number of blocks.