O P E R A T I N G F O R M S C H A P T E R 9
Receive
Pre-Processed Audio will record the whole bandwidth of the receiver input. The bandwidth is
determined by the sample rate you set for your sound card on the Setup Form-Audio Tab, Sound
Card Sub-Tab. This is useful for playing back through the console at a later time (e.g. for
demonstration purposes).
Post-Processed Audio will record only the filtered, AGC’d audio as you hear it coming out of the
speaker. This is useful for playing back the received audio through a typical wav file player.
Transmit
Pre-Processed Audio will capture the audio as it is seen at the microphone input without any of the
effects of filtering, compression, companding, equalization or any other audio processing features
that may be turned on in the transmit chain.
Post-Processed Audio allows the recording to capture the audio after it has been filtered,
compressed, companded, equalized or modified by any other audio processing feature turned on in
the transmit chain.
(31) Equalizer Form
Figure 126: Equalizer Form
The Equalizer Form allows the receive and transmit audio to be modified by 3 band graphic settings. Use
the sliders to adjust the gain for the Low, Mid and High audio bands. The Preamp applies gain across the
whole audio spectrum. Easily compare the audio with and without the equalizer using the Enabled
checkbox. The Reset button will reset all of the sliders to the 0dB position. For the TX Equalizer, there is an
additional control that will turn on a 160 Hz notch filter. This gives about 12 dB of suppression at 160 Hz
and is enabled only if TX equalizer is turned on. This is very fast in that it uses the same FFT Overlap Save
approach used by the main filters.
122 FlexRadio Systems
To Next Page
Loading...
Need help?
General
