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Audio dBc vs. dBa

Audio dBc vs. dBa. The Audio envelope of the T3 and A1 is calibrated towards dBc scale rather than dBa . The reason is that dBa is simulating the frequency response of the human ear and the measure is therefore frequency dependent.

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Audio dBc vs. dBa

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  1. Audio dBc vs. dBa • The Audio envelope of the T3 and A1 is calibrated towards dBc scale rather than dBa. • The reason is that dBais simulating the frequency response of the human ear and the measure is therefore frequency dependent. • dBc is measuring the actual sound power independent of the frequency. • Using dBa could for example result in a men snoring at 60Hz center frequency being measured approximately 6dB lower than a woman shoring with the same power at 120Hz center frequency. • By recording the raw audio, any weighting curve can be applied to the recorded sound in the software and therefore dBa can be derived as well. • Applying weighting curves in software will be a feature available in Noxturnal 4.0. - Company Confidential -

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