If we’re being honest, even in rock/metal, the vocals usually are the most important part of the song. Therefore, mixing vocals is a critical aspect of music production. In this post, we’ll delve into the nuanced use of soft and hard compression because understanding the difference between these two forms of compression can elevate your vocal tracks to new heights. We’ll use our brand new Gamma Vocal Suite as an example since it features a simple option to select between hard and soft styles of compression.

Understanding Compression in Music Production

What is Compression?

Compression is a technique used to control the dynamic range of a sound. This dynamic range is the difference between the loudest and the softest parts of a track. By compressing, we reduce this range, making the quiet parts louder and the loud parts quieter, which can bring consistency and balance to the vocals. Without compression, the vocals can easily get lost in the mix. 

Types of Compression

  • Soft Compression: This type involves gently compressing the audio signal, often resulting in a more natural, smoother sound. Soft compression is typically used to add warmth and subtlety to the vocals, making it a go-to choice for sung vocals in softer sections of songs, ballads, and anything else that has a softer style of singing.
  • Hard Compression: In contrast, hard compression applies a more aggressive level of compression. This technique is frequently employed in heavier music genres, like metal or hard rock, particularly for screaming or aggressive vocal styles. Hard compression helps in maintaining the intensity and energy of the performance, ensuring that all of your screams cut through the mix.

Applying Compression to Vocals

Soft Compression for Singing

When dealing with singing, especially in genres that demand a degree of subtlety and emotion, soft compression is typically what you'd want. 

  • Why Soft Compression? It helps in smoothing out the dynamics without squashing the life out of the performance. Ideal for emotional or dynamic singing, it preserves the natural rise and fall of the vocal intensity.
  • Techniques and Tips: The goal is to control the dynamics gently without making the compression too apparent. Select the “Soft” button in Gamma and try to dial in the threshold to where it is only doing a few dB of compression.

Hard Compression for Aggressive Vocals

In the high-energy world of rock and metal, aggressive vocal styles often require hard compression to stand out in the mix.

  • The Role of Hard Compression: It ensures that every growl, scream, or shout remains consistent in volume and presence, important for genres that thrive on intensity.
  • Implementing Hard Compression: Faster attack and release times can help in capturing the quick dynamic changes typical in aggressive vocals. In Gamma, all you need to do is select the “HARD” button and you’ll automatically have more aggressive compression.

Best Practices in Compression

Compression can be a lot to understand if you’re a beginner. So here are some quick tips to help you get going!

  • Avoid Over-Compression: One of the most common mistakes is over-compressing vocals. This can strip away the natural dynamics and make the performance sound lifeless. Unless that is your goal, it's usually best to aim for a balance where the compression is effective yet not overdone.
  • Listen in Context: Always judge the amount and type of compression within the context of the full mix. Soloing the vocal track can sometimes be misleading. The right amount of compression should help the vocals sit well in the mix, neither overpowering other elements nor getting lost.
  • Use Your Ears, Not Just Your Eyes: While modern digital audio workstations (DAWs) offer visual feedback on compression settings, it's crucial to rely on your ears. The visual aids are helpful, but the final judgment should always be based on what sounds best. If it sounds good, it is good!
  • Experiment with Side-Chaining: This technique involves using the signal from one track to control the compression on another. In vocal mixing, side-chaining can help in making space for the vocals by slightly compressing instruments like guitars or keyboards whenever the vocals are present.


In summary, understanding and effectively applying soft and hard compression can significantly enhance the quality of vocal tracks in your music productions. Whether you're crafting a delicate vocal line for a ballad or a gnarly scream for a metal track, mastering these techniques is key.

For those looking to delve deeper, join our Modern Metal Songwriter Facebook Group here. It's an active community where rock and metal musicians and songwriters can connect, share experiences, and learn from each other.

And don't forget to check out our range of audio plugins and educational content, designed to help your songwriting process.

If you'd like to check out Gamma Vocal Suite to help mix your vocals quicker, you can start a free trial by clicking here!