![](http://d10j3mvrs1suex.cloudfront.net/s:bzglfiles/u/777516/272da4a3a588f57cd3e4bdcccb35af2f799ca8ac/original/ab-gain.png/!!/meta:eyJzcmNCdWNrZXQiOiJiemdsZmlsZXMifQ==)
In music production, we frequently use various effects, equalizers (EQ), and other tools to make our recordings sound their best. Although these tools can significantly enhance sound quality, it is crucial to ensure that the final signal's volume remains consistent. This detailed article will explore why matching levels after applying effects and EQ is essential, and explain how to effectively use A/B comparison techniques to achieve optimal results.
Why Level Matching is Important
1. Subjective Sound Evaluation
One of the primary reasons for level matching is subjective sound perception. Human hearing tends to perceive louder sounds as better, which can lead to incorrect conclusions about the effectiveness of an applied effect or EQ. If the volume increases after applying an effect, the sound may seem improved, even if the effect itself did not contribute any real quality.
For instance, when you add a reverb or compressor to a track, the perceived improvement might be due to the increase in loudness rather than the effect itself. This can mislead you into thinking that the effect is more beneficial than it actually is.
2. Maintaining Dynamics
Level matching helps preserve the dynamics of the track. Excessive volume increases after applying an effect can cause a loss of dynamics and balance in the recording. Dynamics refer to the variations in loudness between different parts of the track, which are crucial for emotional expression and musical interest.
If an effect boosts the volume too much, quieter parts of the track might become less distinct, leading to a flat and lifeless sound. Conversely, maintaining proper levels ensures that the emotional peaks and valleys of the music are preserved.
3. Accurate Mix Setting
When working with multiple tracks and effects, level matching allows for more accurate mix settings. If every track becomes louder after applying effects, the entire mix could easily reach clipping and distortion. This not only degrades sound quality but also makes the mix harder to manage.
For example, if a guitar track becomes louder after applying an overdrive effect and is not level-matched, it might overshadow other elements in the mix, such as vocals or drums. By matching levels, you maintain a balanced mix where each element can be heard clearly and contributes appropriately to the overall sound.
How to Match Levels
1. Using Output Levels of Effects
Many effect plugins offer the option to adjust the output level. After applying an effect, you can decrease or increase the output level to match the original signal's volume. This ensures that the resulting sound has the same volume as the original signal before the effect was applied.
For example, if you add a compressor to a vocal track, you might need to adjust the makeup gain to ensure the overall volume remains consistent with the uncompressed signal. Most compressors have a makeup gain control for this purpose.
2. Manual Matching
In some cases, manual level matching might be necessary. This can be done using faders on a mixing console or in a Digital Audio Workstation (DAW). Here are some steps to follow:
- Measure the Levels: Use meters to measure the signal levels before and after applying an effect. Ensure you measure the same section of audio for accuracy.
- Adjust the Fader: Adjust the track fader or the effect's output level until the processed signal matches the original signal's level.
- Listen Critically: Use your ears to make fine adjustments. Sometimes meters alone are not enough, and your ears can tell you if the levels truly match.
3. Utilizing LUFS
Loudness Units Full Scale (LUFS) is a standard measure of loudness used in broadcasting and streaming. By monitoring and adjusting to LUFS, you can achieve more consistent loudness levels across different tracks and projects.
For example, many mastering engineers aim for a specific LUFS target to ensure that their tracks are competitive in loudness without causing listener fatigue or distortion.
Using A/B Comparison Techniques
What is A/B Comparison?
A/B comparison is a technique that allows us to compare the original signal (A) with the processed signal (B) by quickly switching between them. This way, we can accurately hear the differences that the effect or adjustment makes.
How to Properly Perform A/B Comparison
- Set Levels: Before starting the comparison, ensure that the volume of both signals (A and B) is matched. This prevents the louder signal from being perceived as better simply due to increased volume.
- Use Bypass: Many effect plugins have a bypass button that allows quick switching between the original and processed signal. This is essential for A/B comparison.
- Listen to Differences: Focus on changes in tone, dynamics, and overall character of the sound. Ask yourself whether the adjustment truly improved the sound or if it's just a subjective perception due to the volume change.
Example of A/B Comparison
Let’s say you’re working on a vocal track and apply an EQ to boost the high frequencies for clarity. After setting the levels to match, you use the bypass button to switch between the EQ'd signal and the original. If the EQ’d signal sounds clearer and more present without just being louder, then the EQ adjustment is beneficial.
Importance of Ear Training
To effectively use A/B comparison and make sound judgments, it is essential to train your ears. Platforms like SoundGym offer various exercises to improve your critical listening skills, helping you become more sensitive to subtle changes in audio.
Ear training helps you distinguish between frequency ranges, dynamic changes, and spatial effects more accurately, making you a better producer and mixer.
Conclusion
Matching levels after applying effects, EQ, and other adjustments is a critical step in achieving a professional-sounding recording. Using A/B comparison techniques allows us to objectively assess the effectiveness of our adjustments and maintain control over the dynamics and balance of the mix. By following these practices, we can ensure our music sounds great on any device and in any listening environment.
Additionally, training your ears is essential for making accurate sound judgments. We recommend using platforms like SoundGym to improve your listening skills and become a better producer.
Best regards
Maiconbeat-Production
#MixingTips #AudioProduction #SoundDesign #MusicProduction #MixingEngineer #StudioLife #ProAudio #MusicProducer #EQTips #EarTraining #SoundGym