Delivered Audio Quality, abbreviated as DAQ, is a measure of

audio Audio most commonly refers to sound, as it is transmitted in signal form. It may also refer to: Sound *Audio signal, an electrical representation of sound *Audio frequency, a frequency in the audio spectrum *Digital audio, representation of sound ...

quality over a transmission medium. This metric is often used to quantify the quality of audio heard over a

radio Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmit ...

system. DAQ levels are defined by the following scale. * DAQ 1: Unusable. Speech present but not understandable. * DAQ 2: Speech understandable with considerable effort. Requires frequent repetition due to noise or distortion. * DAQ 3: Speech understandable with slight effort. Requires occasional repetition due to noise or distortion. * DAQ 3.4: Speech understandable without repetition. Some noise or distortion present. * DAQ 4: Speech easily understandable. Little noise or distortion. * DAQ 5: Perfect. No distortion or noise discernible.

Sources

* TIA (Telecommunications Industry Association) TSB-88-A * http://www.its.bldrdoc.gov/pub/ntia-rpt/99-358/99-358.pdf Sound technology {{sound-tech-stub