octave-band analyzer

[′äk·tiv ¦band ′an·ə‚līz·ər] (engineering acoustics) A portable sound analyzer which amplifies a microphone signal, feeds it into one of several band-pass filters selected by a switch, and indicates the magnitude of sound in the corresponding frequency band on a logarithmic scale; all the bands except the highest and lowest span an octave in frequency. Abbreviated OBA.

octave-band analyzer

An electronic instrument for measuring octave-band sound-pressure level; consists of a microphone, amplifier, electric filters, an indicator, and appropriate controls.

单词	octave-band analyzer
释义	octave-band analyzer octave-band analyzer [′äk·tiv ¦band ′an·ə‚līz·ər] (engineering acoustics) A portable sound analyzer which amplifies a microphone signal, feeds it into one of several band-pass filters selected by a switch, and indicates the magnitude of sound in the corresponding frequency band on a logarithmic scale; all the bands except the highest and lowest span an octave in frequency. Abbreviated OBA. octave-band analyzer An electronic instrument for measuring octave-band sound-pressure level; consists of a microphone, amplifier, electric filters, an indicator, and appropriate controls.
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