Specifications

Audio Plug-Ins Guide510
TL Master Meter Overview
This section provides an overview of metering
and mastering, and how TL MasterMeter can
help you produce great sounding mixes.
Understanding Digital Distortion
Clients in the music industry regularly demand
the loudest possible mixes. In the process of
achieving such a “hot mix,” unwanted distortion
can be introduced. Intersample peaks that ex-
ceed 0 dB may play without distortion in a stu-
dio environment, but when the same mix is
played through a consumer CD player, the digi-
tal to analog conversion and oversampling pro-
cess can reproduce a distorted mix.
Digital Audio Theory
A key observation in digital audio theory is that
the entire waveform is represented by the sam-
pling points, but a reconstruction process still
needs to occur in order to recreate the waveform
represented. One cannot simply “connect the
dots” between sample points and yield the orig-
inal waveform.
A waveform can be represented in multiple ways
during the process of sampling, display and re-
construction.
The following four figures show how the same
complex waveform shown in the previous figure
can be represented in the digital domain.
The process of recreating the original waveform
from the sampled waveform involves a filter
called a reconstruction filter. This filter re-
moves all content above the Nyquist frequency
(half the sample rate). The range below the Ny-
quist frequency defines the “legal” range of al-
lowed frequencies as frequencies in this range
Sampling
A complex waveform
Waveform sampled
Waveform as represented in DAW
Waveform as reconstructed at the D/A