Signal Processing & DSP

Basic

Digital Audio Bit Rate

Raw data rate from sample rate, bit depth and channels.

Formula

R = f_s \times b \times c

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Variables

RBit rate (bps)

f_sSample rate (Hz)

bBit depth

cChannels

Example

44100×16×2 = 1.41 Mbps (CD)

Did You Know?

An uncompressed CD streams at 1.41 Mbps; MP3 shrinks that tenfold by discarding inaudible detail.

dsp bitrate audio

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FFT Bin Frequency

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Decibel (Power Ratio)

Express a power ratio in decibels.