3-20 Operation
SETTING ANALOG OUTPUT LEVELS
The next tab down displays the analog output levels. If you are using the ANALOG OUTPUT to feed your
transmitter, you can use the slider to get the peak level to within range of your modulation.
Also on the analog output is the option to use FLAT or PRE- EMPHASIZED audio.
If you are feeding a transmitter with a stereo encoder, it is best practice to defeat any pre-emphasis in the
transmitter or stereo encoder and perform pre-emphasis in the 5750 IF the audio path is linear (non
compressed). In some situations where audio needs to pass thru a codec, it
is then necessary to send a FLAT audio signal across.
Please note that there may be a loudness penalty in this situation as the peak
control of pre-emphasized audio in the transmitter or stereo encoder will
not be as accurate as it would be in the 5750’s processing.
If you are using a non linear audio path, consider moving the 5750 to the
transmitter site if possible. This will restore the 5750’s peak control at the
transmitter point for best peak management of your audio.
You may also switch the analog output for the following options:
• FM (no HD delay can be applied)
• FM+HD (FM audio after any delay is applied)
• Monitor (A low latency signal to feed talent headphones for an “off air”
experience)
• HD (The output of the 5750’s HD audio path)
HEADPHONE
The drop down menu on the headphone control lets you choose what part of the 5750 audio path you want to
listen to.
• FM (no HD delay can be applied)
• FM+HD (FM audio after any delay is applied)
• Monitor (A low latency signal to feed talent headphones for an “off air” experience)
• HD (The output of the 5750’s HD audio path)
• HD+Delay (FM audio after any delay is applied)
• Analog input audio
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