Optimize transmission latency
In order to optimize the transmission latency the size of the sample FIFO of physical devices sample sink plugins has been calculated in order to maintain when possible a fixed delay of 250 ms. The minimum baseband sample rate at which the delay reaches a fixed value of 250 ms depends on the device. At lower rates the delay will be larger (see each output plugin documentation to get the details):
This closes issue #44
LimeSDR plugins with LimeSuite 17.06.0
LimeSDR plugins now use the LimeSuite version 17.06.0 in the Debian package. It brings at least these improvements:
- Starting up the plugin is much faster
- The amplifier setting on transmission can use the full range. Previously on VHF and above it was saturating when set over a few dB.
If you build from source you have to make sure that LimeSuite 17.06.0 is installed system wide or a 17.06.0 installation is referenced in the cmake command.
Other changes
- The size of audio FIFO in audio transmission channel plugins (AM, NFM, SSB, WFM) has been reduced from 1s to 100ms