Cool Edit 2.0 by Syntrillium Software provides a highly comprehensive audio editor which can be used to clean up bad-quality recordings saved as MP3, WAV and many other formats. It is also possible to use it to add specific effects to an existing recording to create extra dimensions and additional voices. All of these effects can be previewed before committing, then reversed if needed.
Amplification Effects
Audio files can be amplified to increase level in stages of decibels. Presets already installed include 3dB and 6dB increases and decreases in level. It is, however, very easy to create one's own custom levels and save them. Fade in and fade out are additional features of the amplification section, along with a "Normalize" function, compression and vibrato.
Distortion Effects
Audio can be distorted in many different ways and additional effects can be added into the program. One of the most useful effects is the capability of previewing everything before it is committed. With multiple choices in the "Delay" menu including "Phaser," "Flanger," "Reverb" and "Chorus" it is not difficult to add stunning and powerful effects to an audio file. "Chorus" will make a bland single vocalist sound like a rock band. "Phaser" and "Flanger" effects will create the Wah-Wah and Stroding effects, used in popular music. Fine-tuning these effects can make a lead guitar sound like a sitar, if desired.
Adding Silence and Other Editing Effects
Cool Edit can also be used as a powerful and easy-to-use sound effects editor. Edit out pops and crackling sounds by zooming in on the spot where the distortion occurs. Next, use the cut-and-paste option to remove spikes and fill empty spaces with sound sequences from elsewhere. A continuous time line keeps track of the location down to the split second, and copied audio sequences can be pasted into a new file and pasted back after work has been done on the sequence.
by ehow.com
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