Improve SSB and shortwave audio clarity with a compact digital signal processor designed for noisy RF environments. This unit combines DNR noise reduction, 10level FLT digital filtering, and selectable lowpass options to help you hear weaker signals and pull clear voice audio from static and interference. Key benefits Better intelligibility: DNR noise reduction and precise digital filtering reduce background noise so voice and SSB signals are easier to understand. audio shaping: Ten selectable filter modes, including lowpass choices from 200 Hz to 6 kHz plus a directpass option, let you match filtering to signal conditions and preference. Visual feedback for tuning: Builtin audio spectrum display via the 3.5 mm input helps you see frequency distribution in real time, making it easier to identify and isolate speech components. Flexible setup and stable operation: Compact design with USB TypeC power input for reliable power, builtin speaker for immediate listening, and standard audio output for external speaker or other audio equipment. Features and attributes Function: Digital signal processor with DNR noise reduction and 10level FLT digital filtering for improved SSB reception. Filters: 10 selectable digital filter modes; lowpass options from 200 Hz to 6 kHz plus direct pass for unfiltered audio. Display: Audio spectrum visualization through 3.5 mm input that reacts dynamically to incoming signals. Compatibility: Designed for use with shortwave receivers and other radio equipment where SSB or voice extraction is needed. Size and setup: Compact unit with integrated speaker; supports external speakers or linelevel output. Powered via TypeC for stable operation. Use scenarios Amateur radio operators improving SSB reception on shortwave bands to copy weak or noisy signals. Emergency communications or field operations where clear voice extraction from noisy RF or crowded bands is critical. Radio hobbyists and bench technicians visualizing audio spectra during alignment, testing, or receiver adjustments. Who should consider this product Shortwave listeners and amateur radio operators who need clearer voice recovery and flexible filtering. Technicians and hobbyists requiring a compact, visual, and easily powered DSP audio tool for SSB and voice signals.