Tips & tricks to use Free MP3 Editor Platinum.

Digital Audio Effects

With our professional editing application, you can add many more audio effects to the selected region, such as amplify volume, compressor, fade in & fade out, flanger, normalization, phaser, reverb, silence, etc. You can directly find these buttons with concise and simple interface.


Some effects come with a series of options known as "Presets". The idea behind presets is to save you having to fiddle around with the numbers, which is great if the numbers don't mean a lot to you. Instead, you can just browse the preset list and select the option which best describes the effect you are trying to achieve.


To amplify is to increase the loudness or volume of the selected region. To make a part of the recording softer or louder, select it and then use the menu Effects -> Amplify. The volume is entered in percent (100 being no change, 50 being -6dB softer or 200 being +6dB louder).


To normalize is to adjust the volume so that the loudest peak is equal to (or a percentage of) the maximum signal that can be used in digital audio. Usually you normalize files to 100% as the last stage in production to make it the loudest possible without distortion.


You can use this function to create single echoes, as well as a number of other effects. Delays of 35 milliseconds (ms) or more will be perceived as discrete echoes, while those falling within the 35-15 ms range can be used to create a simple chorus or flanging effect. (These effects will not be as effective as the actual chorus or flanging effects, as the delay settings will be fixed and will not change over time).

Fade In/Fade Out

In audio engineering, a fade is a gradual increase or decrease in the level of an audio signal. A recorded sound may be gradually reduced to silence at its end (fade-out), or may gradually increase from silence at the beginning (fade-in).


An equalizer changes the frequency response of a signal so it has different tonal qualities. To assist you with shaping the Equalizer graph in the way you want, there is a preset list that displays the most common sorts of filters used in the Equalizer graph. You can choose any preset filter from the list and then manipulate the filter to achieve the effect you desire.


Reverb is many small reflections of the sound that come after a set time. It usually occurs when someone is speaking in a room, hall etc. More reverb is called wet, no reverb is called dry.


This effect reverses the selection in the same way playing a record or tape backwards would.


The envelope is the change in volume of the select region over time. This can be used to make fine adjustments to the volume over time or even more crude changes like fade in or fade out.

Speed Change

Normal speed changes the pitch in proportion to the speed. If you want to change the speed but keep the pitch the same use this function.

Pitch Change

This changes the pitch of the recording without changing the speed (i.e. the converse of the above).


A Compressor limits the volume levels of a sound recording so that it stays within a certain loudness range. It also has a use for recording audio from one medium to another, where the two mediums are not capable of handling the same range of volume levels (e.g. A CD can handle a much greater range than a cassette tape).


Flanging is created by mixing a signal with a slightly delayed copy of itself, where the length of the delay is constantly changing. It is actually one specific type of phasing (Phaser).


The Chorus differs from the Flanger in only a couple of ways. One difference is the amount of delay that is used. The delay times in a Chorus are larger than in a Flanger, usually somewhere between 20 ms. and 30 ms. (the Flanger's delay usually ranges from 1 ms. to 10 ms.) This longer delay doesn't produce the characteristic sweeping sound of the Flanger. The Chorus also differs from the Flanger in that there is generally no feedback used.

Digital Audio Effects

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