Audio DSP Noise Reductioner DNR Digital Filter SSB radio YAESU ICOM + SpeakerDescription: This audio DSP noise reducer, with this tool, you can use it to reduce noise during communication, process audio signals, improve signal clarity, and achieve digital noise reduction and digital filtering. Suitable for use with radio receivers. Come and experience it, I believe it will not let you down. Features: The wireless radio short wave radio DSP noise reduction contains a DSP digital signal processor to process audio signals to