Octave Bands Frequency Limits

Overview

Engineering reference data for Octave Bands Frequency Limits in miscellaneous.

Key Formulas

Unit Conversion

$y = x \cdot k$

Multiply by conversion factor.

Linear Interpolation

$y = y_1 + \frac{(x - x_1)(y_2 - y_1)}{x_2 - x_1}$

Estimate between two known points.

Percentage

$p = \frac{\text{part}}{\text{whole}} \times 100\%$

Part as fraction of whole.

Variables

Symbol	Description	Unit
$x$	Input value	—
$y$	Output value	—
$k$	Conversion factor	—

Wavelength and Frequency Relationship

The wavelength of a sound wave is inversely proportional to its frequency and can be calculated using:

$$\lambda = \frac{c}{f}$$

Where:

• $\lambda$ = wavelength (m)
• $c$ = speed of sound in the medium (m/s)
• $f$ = frequency (Hz)

A typical value for the speed of sound in air at 20°C is 343 m/s. This relationship is fundamental to understanding how sound behaves in different media and for calculations involving acoustic systems and wave propagation.

Interactive Charts

References

• Original Source