Octave band definition

Octave band means a spectrum of sound frequencies between band edge frequencies an octave apart. For purposes of this procedure, octave band frequencies are as specified in Table 1 of ANSI S1.11-1966 (R-1976) “specifications for octave, half-octave and third-octave band filter sets” (see N.J.A.C. 7:29-2.12(a)1).
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Octave band means a prescribed interval of sound frequencies which classifies sound according to its pitch.
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Octave band means an interval in Hertz between two frequencies having a ratio of 2:1. For purposes of this Regulation, octave band sound pressure levels shall be measured at any of the following center frequencies: 31.5, 63, 125, 250, 500, 1,000, 2,000, 4,000 and 8,000 Hz.
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Examples of Octave band in a sentence

  • Octave band corrections may be employed in meeting the response specification.

  • Octave band analyzers calibrated in the preferred frequencies (American National Standards Institute Standard S 1.6—1967, Preferred Frequencies and Band Numbers for Acoustical Measurements) shall be used.

  • Octave band sound pressure levels will be obtained for ambient room conditions with equipment not operating and also with the installed equipment operating per plans and specifications.

  • Check appropriate provisioning & prepaid element based on the accounting year.

  • The CEL-63x instrument provides SPL, Integrating and Octave band noise measurements compliant with the following international standards: IEC 61672-1: 2002-5 (Electro-Acoustics – Sound Level Meters) Group„X‟ instruments.

  • Octave band analysis and identification of predominant frequencies of operation.

  • Octave band levels with an IEC input spectrum (dB) For the Football stadium, a scenario with 80% of the stands occupied with people was considered for the STI predictions.

  • Octave band LEq and percentiles ambient noise levels were also measured for each area.

  • Octave band Hz 125 Both spectra included in Table 2 will be used in the next section for STI calculations.

  • Octave band: a band of sound covering a range of frequencies such that the highest frequency is twice the lowest frequency, as defined in ANSI Standard S1.11.One-third octave band: a band of sound covering a range of frequencies such that the highest frequency is the cube root of two times the lowest frequency, as defined in ANSI Standard S1.11.


More Definitions of Octave band

Octave band is a means of dividing the range of sound frequencies into octaves in order to classify sound according to pitch.
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Octave band means a filter that attenuates all noise except that which lies between two close frequencies. Octave band filters are used to measure which frequencies are mainly present in a given noise.
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Octave band means a frequency band with lower and upper cut-o" frequencies having a ratio of 2. The cut-o" frequencies of 707 Hertz and 1414 Hertz define an octave band in common use.
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