Cool Sound Effects

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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.

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Insert Sound Effects Office PowerPoint

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An audio soundtrack adds polish and professional depth to a PowerPoint presentation. Examples of audio clips that can be useful in a slide show include recorded speeches, sound effects and background music to accompany photographs. The best digital formats for use in PowerPoint are mp3 and wav files, but mp3 files can be linked but not embedded. As long as they are correctly inserted, they both will play fine.

1.  Start the PowerPoint program. From the "Insert" menu, scroll down to "Movies and Sounds," then select the sub-menu "Sound from File" and click it.



2.  Scroll through the folders on your computer to locate the audio file you wish to insert. Note the drop-down menu below the file name and designate your file type. Click "OK" once you have located your audio file.



3.  Respond to the "Microsoft Office PowerPoint" window that opens asking you how you want the sound to start in this slide show. Click on the "Automatically" button if you wish the sound to begin by itself after the transition to the slide with the audio inserted into it. Click "When Clicked" if you will start the audio manually after a set period after the slide appears.

by ehow.com

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