Saturday, June 21, 2008

Tips on Editing Sound Effects for a Sound Effect Library

By SFXsource

After recording a fair amount of raw audio intended for sound effects then it is time to edit these recordings. In order to edit your recordings well use an audio editing software that provides, eqs, normalization, fade ins/outs, and the ability to cut. Useful freewares can be found on the web and there are a plethora of digital audio workstations (DAWs) for sale that will allow you to edit.

Open your audio software and import all of your new raw .wav recordings. Take a large batch of 40 or so .wav files to import and solo each track, thus muting the others, as you work on each file one by one, though you may of course choose the less efficient method of importing one at a time. At this point you can begin editing your recordings and then mix them into finished sound effect products. The advice that follows provides useful information on creating the most valuable sound effects possible from you .wav recordings.

1. First, normalize each track before editing it. This function increases the highest existing amplitude of the .wav file to the highest possible amplitude, meaning simply that it makes the .wav files as loud as possible.

2. Next, cut out unwanted frequencies that degrade the quality of your sound by using eqs. For instance, an unwanted air conditioning sound may be interfering with a bird chirp. To get rid of the unwanted AC simply apply a high pass filter around 2,000 Hz which will kill the AC noise but preserve the higher frequencies of the bird chirp.

3. After cleaning and amping the audio next find a clean break with which to start each particular sound effect and make a fade out or let the natural reverb of the sound fade out by itself for 1-2 seconds.

4. Create a stereo 48k 24bit .wav file of your recording for video editing purposes. This quality of file is highly valued by individuals and libraries that license sound effects and will earn good money.

5. Make as many versions of each sound recording as possible to increase your number of products. For example, if you have a dog barking 20 times then create sound effects with one bark, three barks, six barks, 10 barks etc. switching up the combinations of barks. This could easily give you 50 or more sound effects from just that one sequence of dog barks.

6. Use pitch shift and other effects to create new versions of each sound to increase your number of products. For example, a burp sound effect could be pitch shifted down to create a monster burp sound and pitch shifted up to create a more childlike sounding burp.

A little knowledge of the ins and outs of audio editing combined with the above tips will allow you to easily create professional sounding effects that can be licensed time and time again by multi-media editors and producers.

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