The importance of audio normalization

acoustic panels

The world of acoustics is full of minute details. From acoustic panels to speakers, everything has some or the other function. It is the same in terms of audio normalization. Have you suddenly experienced a blast of high volume when a new song is played despite the previous song being medium in terms of volume? This clearly happens when there is a lack of audio normalization. While audio normalization is important for sound clarity, you must be wondering what is audio normalization, right? In simple words, audio normalization is when you put constant gain to a recording so that you can bring the average amplitude to the desired level. This process helps to improve the overall quality of the sound and balance the volume. As the same gain is applied across the recording, The signal-to-noise ratio and relative dynamics of the audio remain unchanged.

Why should audio be normalized?

Audio should be normalized for two reasons: 

i) To get the maximum volume.

 ii) For matching volumes of different songs or program segments.

Unlike compression, Normalization can be automatically done without changing the sound. While this can prove as a huge advantage, it can’t replace compression. It is because it can’t affect the peaks in relation to the bulk of the sound.

What are the best methods for audio normalization?

 Now, as you have understood what exactly is audio normalization, get to know the different methods of audio normalization. 

PEAK volume detection:

This is the best method if you want to make the audio as loud as possible. In digital audio, you can’t get any louder than the highest peak at 0 dBFS. So, normalizing to this value will create the loudest file you can. However, in a multi-track recording, PEAK normalization to 0 dBFS is a bad idea for any components to be used. The audio might overload as soon as extra processing or play tracks are added. 

RMS volume detection:

The RMS method is used for balancing overall loudness of the audio file. This method is useful in creating more natural results across different types of audio files. It is closer to the human ear, thus creating the desired results for the average human ear. 

  Most of the audio tech experts find normalization destructive as you can’t totally perform digital processing to audio without changing it. Peak normalization also causes too much strain to the sound. Therefore, you must only use normalization when necessary. For best solutions on issues like audio normalization and other sound or audio related issues, Audio Technik can serve as a helping hand always! One of the top Acoustic consultants in India, Audio Technik provides solutions right from acoustic panels to home theater systems. Audio Technik has also partnered with renowned brands in the audio industry like JBL, Bose, Sennheiser and many others to serve its customers with superior quality at all times. So, the next time you encounter a problem in audio functioning or need to design an acoustically sound place, just leave it on Audio Technik for the best audio solutions!