Modifiers matching signal:

• analog,
• electromagnetic,
• audible,
• vital,
• tonal,
• detectable,
• slow,
• false,
• underlying,
• broadband,
• natural,
• acoustic,
• loud,
• visual,
• extraneous,
• external,
• biological,
• graphic,
• electrical,
• large,
• typical,
• temporal,
• complex,
• stationary,
• ambient,
• audiovisual,
• primitive,
• peripheral,
• clinical,
• cultural,
• unintentional,
• global,
• physiological,
• static,
• incoming,
• off,
• graphical,
• diagnostic,
• molecular,
• diverse,
• abstract,
• local,
• nonverbal,
• developmental,
• intracellular,
• traditional,
• regular,
• digital,
• continuous,
• important,
• sensory,
• perceptible,
• linguistic,
• ionic,
• behavioral,
• repetitive,
• related,
• distinct,
• functional,
• atomic,
• periodic,
• ancillary,
• erroneous,
• heterogeneous,
• wideband,
• electric,
• informational,
• chemical,
• standard,
• defined,
• secondary,
• light,
• remote,
• undesired,
• costly,
• familiar,
• pyrotechnic,
• technical,
• basic,
• intermediate,
• extracellular,
• mechanical,
• unpredictable,
• clear,
• interfering,
• real,
• simple,
• medical,
• measurable,
• useful,
• plastic,
• over,
• perceivable,
• level,
• specified,
• sexual,
• common,
• weather,
• rapid,
• realistic,
• fast,
• accidental,
• transient,
• internal,
• positive,
• difficult,
• telegraphic,
• verbal,
• endogenous,
• rhythmic,
• primary,
• accessible,
• harmonic,
• electromechanical,
• localized,
• unique,
• seasonal,
• auxiliary,
• intrinsic,
• chaotic,
• directional,
• complicated,
• dynamic,
• alert,
• demographic,
• specialized,
• practical,
• actual,
• logical,
• informative,
• relevant,
• attractive,
• linear,
• systemic,
• structured,
• stray,
• random,
• out,
• mental,
• meaningful,
• size,
• abnormal,
• small,
• larger,
• male,
• objective,
• driving,
• original,
• hemodynamic,
• cellular,
• percussive,
• auditory,
• seismic,
• biomedical,
• exogenous,
• critical,
• stereo,
• discrete,
• noisy,
• negative,
• single,
• behavioural,
• unwanted,
• social,
• resonant,
• respiratory,
• electronic,
• moving,
• subtle,
• visible,
• individual,
• sensorial,
• typographical,
• physical,
• fixed,
• elementary,
• significant,
• neural,
• white,
• environmental,
• additional,
• world,
• pedestrian,
• interactive,
• strong,
• symbolic,
• everyday,
• high,
• multiple,
• vocal,
• financial,
• metabolic,
• private,
• outside,
• extra,
• nonrandom,
• pitched,
• weak,
• binary,
• insignificant,
• intermittent,
• normal,
• special,
• physiologic,
• communicative,
• identifiable,

Simple categories matching acoustic:

• instrumentation,
• context,
• instrument,
• means,
• bag,
• attribute,
• quality,
• noise,
• property,
• component,
• sound,
• signal,
• phenomenon,
• filter,
• constant,
• dimension,
• artifact,
• reflector,
• output,
• information,
• resonator,
• detector,
• genre,
• sensation,
• style,
• medium,
• form,
• system,
• activity,
• environment,
• function,
• practice,
• event,
• music,
• data,
• indicator,
• material,
• foam,
• sensor,
• energy,
• transducer,
• equipment,
• quantity,
• condition,
• analysis,
• horn,
• measure,
• converter,
• result,
• combination,
• domain,
• item,
• space,
• track,
• alarm,
• keyboard,
• occurrence,
• wonder,
• source,
• disturbance,
• radiator,
• unit,
• enclosure,
• structure,
• interference,
• characteristic,
• group,