Spectrogram

What is an audio spectrogram?   An audio spectrogram is a visual representation of sound. Spectrogram, in general, is a time-varying spectral representation which shows the variation of spectral density of a signal with respect to time. Spectrograms (or...

Spectrum Analyzer

What is a Spectrum Analyzer   The spectrum analyzer is a specialized type of a sound level meter. Consequently, it allows the engineer to examine the amplitude versus the frequency spectrum of a sound. They use multiple sets of filter networks and vertical colums...

LUFS Metering

Back in the days of analog recording, meters actually displayed electrical level as a representation of audio level. Today’s digital technology enables alternative types of metering. For example, unlike the human ear, which has different sensitivities to sound at...
Understanding Phase and Phasing

Understanding Phase and Phasing

Phase (sometimes called “position”) is the orientation of a cyclical waveform in time, relative to a another cyclical waveform.   Here is an analogy on a less abstract level… If I were to start singing Twinkle Twinkle Little Star from the lyrics “up above...