Original sentence: A decoder generally tries to filter an audio input in order to strip off every audio component except a sought-after, specific tone.Falsing sometimes occurs on a voice circuit when a human voice hits the exact pitch to which the tone decoder is tuned, a condition known as talk-off.In order for the tone decoder to work reliably, the audio input level must be in the linear range of audio stages, (undistorted).In order to false in a dual-tone system, both decoders would have to false at the same moment.In some systems where tone signaling is used, higher reliability and less probability of falsing is needed.One method of reducing falsing is to use formats with simultaneous, paired tones
Edited sentence: A decoder generally tries to filter audio input to strip off every audio component except a sought-after, specific tone.Falsing sometimes occurs on a voice circuit when a human voice hits the exact pitch to which the tone decoder is tuned, a condition called talk-off.For the tone decoder to work reliably, the audio input level must be in the linear range of audio stages, (undistorted).One method of reducing falsing uses formats with simultaneous, paired tones.Some systems that use tone signaling require higher reliability and less probability of falsing.To false in a dual-tone system, both decoders would have to false at the same moment