What is downward expansion?

What is downward expansion?

Downward expansion (conventionally referred to as just “expansion”) is similar to its upward counterpart, but with one fundamental difference: when a signal drops below a set threshold, the downward expander pulls it even farther down toward the noise floor.

What is expander mixing?

Expanders are helpful dynamic processing tools that increase the dynamic range of an audio signal. They are essentially the opposite of a compressor, which decreases the dynamic range of an audio signal. Downward expanders reduce the level of an audio signal below the threshold, making quiet sounds quieter.

What is downward compression?

Downward compression attenuates the audio signal above a set threshold by a set ratio in order to reduce dynamic range. Upward compression amplifies the audio signal below a set threshold by a set ratio in order to reduce dynamic range.

Where are gates most commonly used?

Gates are mainly used to cut out audio when it’s quiet and unneeded. This can be on a vocal to eliminate breaths, or can be used as an expander to isolate louder signals in a recording (e.g. isolating drums).

Should you parallel compress vocals?

Using parallel compression can be an effective way to give your vocals a professional edge but it’s a difficult technique to master. Use gates, EQ and de essers to remove content you don’t want to be harshly compressed.

Is an expander a gate?

Audio Expander This device is very similar to the gate. The only major difference is that instead of muting the signal once it falls below the threshold, the expander still lets some signal through but at a lower level, resulting in a signal of lower volume.

What does expander do to vocals?

What do expanders do? Again, like a compressor “compresses” and a limiter “limits” the dynamic range, an expander expands it. Louder and quieter parts become relatively louder and quieter respectively. As such, it’s essentially the opposite of a compressor.

What does an expander do to audio?

More commonly, expanders are used for noise reduction. In this application (downward expansion), a threshold is set at a level below desired audio signals, but above the noise floor. When signal drops below the threshold, expansion is applied, pushing signal even further down, reducing the level of noise.

What is the difference between upward and downward compression?

There are two types of compression, downward and upward. Both downward and upward compression reduce the dynamic range of an audio signal. Downward compression reduces the volume of loud sounds above a certain threshold. Upward compression increases the volume of quiet sounds below a certain threshold.

What is a gate plugin?

A gate is a hardware device or plugin that can be set to automatically mute certain pieces of the signal of an audio track. Some gates will reduce volume rather than mute it, but you can manipulate certain parameters to set the gate exactly how you like it to get your audio sounding how you need it to.

What’s the difference between upward and downward expanders?

There are two types of expansion: upward expansion and downward expansion. Downward expanders reduce the level of an audio signal below the threshold, making quiet sounds quieter. Upward expanders boost the level of an audio signal above the threshold, making loud sounds even louder.

When to use downward expansion or upward gating?

Downward expansion, which is what you usually find in typical rack processors, cuts your signal dynamically when the signal is below the threshold.

How is upward expansion similar to regular compression?

Upward expansion is akin to regular old compression in a key way: it affects a louder signal as it crosses the threshold. However, instead of clamping down on the signal, the expander pushes the sound up in level. Here is where the process earns its name—it expands the overall dynamic range of the signal.

How does upward expansion work in a DSP plugin?

Also some DSP plugins (like Waves) have processes they call “upward compression” that may not fit any definition but their own. There are upward and downward expanders. Upward expansion boosts your signal by a dynamically increasing amount when the signal goes over the threshold.