EZ CD Audio Converter
Easy-to-use audio file converter software with professional audio quality
DSP Options
Normalization
Normalization is the process of adjusting the volume level of an audio file to meet a specific target. It ensures that audio plays at an appropriate and consistent level.
Loudness Normalization adjusts audio so that it plays at a consistent perceived volume across different tracks.
Peak Normalization adjusts the volume of an audio file so that its loudest point (peak) reaches a specified level, usually close to 0 dB (the maximum before distortion).
Loudness normalization uses EBU R 128 loudness algorithm. Default value is -14 dB LUFS (ReplayGain +93 dB SPL, Δ -4.00 dB) which is standard setting for all kind of music.
- ReplayGain calibrated reference level 89 dB SPL equals EBU R 128 -18 LUFS.
- Sound Pressure Level 89 dB SPL is calibrated to -14 dB RMS relative to a full scaled sine wave (0 dB FS).
- SPL calibration level 83 dB SPL equals -20 dB RMS relative to a full scaled sine wave (0 dB FS)
- EBU R 128 is calibrated to 1 kHz stereo sine wave (0 LUFS equals 0 dB FS).
Loudness Normalization | Integrated
Integrated loudness is the average perceived loudness of an entire audio track, measured from beginning to end.
It takes into account all parts of the program; quiet sections, loud sections, and everything in between, to produce a single overall loudness value.
Loudness Normalization | Top of Loudness Range
Top of Loudness Range (ToLR) normalization focuses on the loudest sustained sections of an audio track rather than the full average.
Instead of considering the entire program, it analyzes only the upper portion of the loudness distribution - around the top 5% (95th percentile) - while ignoring both very quiet parts and very short peaks.
Comparison
While Integrated Normalization measures the overall average energy of a track, Top of Loudness Range Normalization measures the maximum sustained energy - the loudest parts that last long enough to be perceived clearly.
Integrated Normalization averages the entire track, blending quiet and loud sections into one value. This helps keep songs consistent in playlists, so one track doesn’t feel noticeably louder or softer than another.
Top of Loudness Range (ToLR) Normalization focuses on the loudest sustained moments - like the chorus. It ignores the quiet intro and also ignores very short spikes (like a single snare hit). This approach is useful for controlling how loud the most intense sections feel, preventing them from becoming too harsh or distorted, even if the rest of the track is much quieter.
Peak limit
Peak limit is a safety ceiling for the audio. It acts like a "brick wall" that prevents the volume from ever going above a specific level.
Delete Leading Silence
Removes silence from the beginning of the audio file.
Delete Trailing Silence
Removes silence from the end of the audio file.
Digital Silence (Zero Samples)
Removes only true digital silence where sample values are exactly zero.
Threshold
Sets the level below which audio is considered silence, adjustable from -80 dBFS to -20 dBFS.
-80 dB FS being near to the digital silence (0.01 % of the 0 dB FS peak) and -20 dB FS (10 % of the 0 dB FS peak)
Fade In
Gradually increases volume from silence at the beginning of the audio. Duration can be set between 1 and 10 seconds.
Fade Out
Gradually reduces volume to silence at the end of the audio. Duration can be set between 1 and 10 seconds.
Add Leading Silence
Adds a specified duration of digital silence (zero samples) to the beginning of the audio file.
Add Trailing Silence
Adds a specified duration of digital silence (zero samples) to the end of the audio file.