If your microphone is heard with a delay/latency in RadioBOSS, there are two possible solutions for this problem.
Option 1
Enable the "Output to encoders only" option in the Inputs settings: https://manual.djsoft.net/radioboss/en/microphone___line-in.htm
This way, you won't hear yourself in the speakers/monitors. But listeners connecting to your station will hear you.
Option 2
Use ASIO to get rid of latency. ASIO should be set for both Playback (Main sound card and, if used, Monitor) https://manual.djsoft.net/radioboss/en/playback.htm and for Inputs: https://manual.djsoft.net/radioboss/en/microphone___line-in.htm
If your device doesn't natively support ASIO, consider using ASIO4ALL: https://www.asio4all.org/
Option 1
Enable the "Output to encoders only" option in the Inputs settings: https://manual.djsoft.net/radioboss/en/microphone___line-in.htm
This way, you won't hear yourself in the speakers/monitors. But listeners connecting to your station will hear you.
Option 2
Use ASIO to get rid of latency. ASIO should be set for both Playback (Main sound card and, if used, Monitor) https://manual.djsoft.net/radioboss/en/playback.htm and for Inputs: https://manual.djsoft.net/radioboss/en/microphone___line-in.htm
If your device doesn't natively support ASIO, consider using ASIO4ALL: https://www.asio4all.org/