Advice on Editing Sound Effects for Sound Effect Libraries
Editing your raw audio recordings into professional quality sound effects is the step that takes place after the initial recording period. Hunt down an audio editing software that has eqs, the ability to cut audio, normalization, and fade in/out capabilites. You may use either a freeware readily found online or purchase one of the many digital audio workstations (DAW) available on the web.
First import all of your raw .wav recordings into the software of your choice. Try to import 40 or so for efficiency, though you may attack one at a time, and solo each track for editing which mutes all tracks except the one with which you are working. Now you are ready to edit your sounds and then bounce them into completed sound effects. The following points will assist the quality and efficiency of your work.
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. Secondly, some frequencies may affect the quality of your sound effect and you should use eq to eradicate these sonic culprits. A great sounding bird chirp, for example, may be compromised by an offending air conditioner. But, by cutting all frequencies below 2,000 Hz you can get rid of the AC and keep the lovely bird sound.
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.
5. Mix down a 48k 24bit stereo .wav file to be used for video productions. Such 48k 24bit stereo files earn the most money as they are valued by video editors and producers for their higher quality.
5. By creating multiple versions of each recording you will increase the number of your products and thus the value of your library. For example, if you have a sequence of 20 firework explosions, create sound effects for one explosion, two explosions, five explosions etc while cutting and switching the order of explosions each time. Using this method, you can readily get 50 or more products from this one recording of fireworks.
6. You can further increase your number of effects by using pitch shift or other filters on each sound sample. For instance, the sound of a stream can be pitch shifted up to make it sound lighter and less tumultuous and pitch shifted down to make it sound larger and deeper.
With a little knowledge of audio editing, simply follow the above advice to transform your audio samples into professional quality sound effects for licensing in media productions.
