Premodifier: audio
Head noun: frequency

Same concepts
http://dbpedia.org/resource/Audio_frequency

Broader concepts

labelprovenanceconfidence
low frequencyisap:3542137190.687858
factorisap:1329995170.377758

Narrower concepts

labelprovenanceconfidence
frequencyisap:3542136390.547094
khzisap:2623901440.211484