What is Shelving EQ?
Shelving EQ is a type of equalization that allows you to boost or cut frequencies above or below a certain point, known as the shelf frequency. This type of EQ is commonly used in audio processing to shape the tonal balance of a sound by adjusting the levels of high or low frequencies. Shelving EQ is named after the shape of its frequency response curve, which resembles a shelf that either boosts or cuts frequencies above or below the shelf frequency.
How does Shelving EQ work?
Shelving EQ works by applying a fixed boost or cut to all frequencies above or below the shelf frequency. When boosting with a shelving EQ, all frequencies above the shelf frequency are increased by a certain amount, while frequencies below the shelf frequency remain unaffected. Conversely, when cutting with a shelving EQ, all frequencies above the shelf frequency are decreased, while frequencies below the shelf frequency are left untouched.
When to use Shelving EQ in audio processing?
Shelving EQ is commonly used in audio processing to adjust the overall tonal balance of a sound. It is often used to brighten up a dull sound by boosting high frequencies, or to add warmth to a sound by boosting low frequencies. Shelving EQ can also be used to tame harsh frequencies or remove rumble from a sound. Additionally, shelving EQ can be used to create separation between different elements in a mix by carving out space for each instrument or voice.
What are the different types of Shelving EQ?
There are two main types of shelving EQ: high shelf and low shelf. A high shelf EQ boosts or cuts frequencies above the shelf frequency, while a low shelf EQ boosts or cuts frequencies below the shelf frequency. High shelf EQ is commonly used to add brightness to a sound, while low shelf EQ is often used to add warmth or body to a sound. Some EQ plugins also offer a variable slope shelving EQ, which allows you to adjust the steepness of the shelf curve.
How to effectively use Shelving EQ in a mix?
To effectively use shelving EQ in a mix, it is important to first identify the areas of the frequency spectrum that need adjustment. Listen to the sound you are working on and determine whether it needs more high-end sparkle, low-end warmth, or any other tonal adjustments. Use a shelving EQ to boost or cut the desired frequencies, being careful not to overdo it. Make subtle adjustments and listen to how they affect the overall sound. A/B testing can also be helpful to compare the original sound with the EQ’d sound.
What are some common mistakes to avoid when using Shelving EQ?
One common mistake when using shelving EQ is applying too much boost or cut. It is important to make subtle adjustments to avoid introducing unwanted artifacts or distortion. Another mistake is using shelving EQ to fix problems that could be better addressed with other types of EQ, such as parametric EQ. Additionally, using shelving EQ on every track in a mix can result in a muddy or harsh sound. It is important to use shelving EQ judiciously and only when necessary to enhance the overall tonal balance of a mix.