Creative 70EM896106000 Owners Manual - Page 66
Auto-Wah
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5 - Effects Core Effects Descriptions Auto-Wah This effect creates the sound of a guitar wah-wah pedal. The "Wah" filter sweep is automatically triggered from the amplitude envelope of the input sound. Auto-wah works well with percussive sounds such as guitar or bass. The Auto-Wah is a bandpass filter whose frequency can be swept up or down by an envelope follower, which extracts the volume contour of the input signal. The Envelope Sensitivity setting allows you to properly set up the envelope follower to receive a wide variety of input signals. This "envelope", or volume contour, controls the frequency of the bandpass filter so that it sweeps up and down with each new note. The Attack controls the rate of the note-on sweep. As the input sound fades away, the filter sweeps back at a rate determined by the Release setting. The wah direction allows the filter to be swept either up or down in frequency. Use a higher Center Frequency setting when the wah direction is down. Auto-Wah Filter Center Frequency Input Wave Envelope Sensitivity Bandwidth Sweep Range Attack Release Envelope Follower Parameter Wah Direction Env. Sensitivity Env. Attack Time Env. Release Time Sweep Range Center Frequency Bandwidth Description Allows you to sweep the wah up or down. Controls how closely the wah sweep follows the input signal. Range: -12dB to +18dB Sets the starting rate of the "wah" sweep. Range: 0ms to 500ms Sets the ending or release rate of the "wah" sweep. Range: 10ms to 1000ms Controls the amount of "wah" sweep. Range: 0% to 100% Sets the initial bandpass filter frequency. Range: 80Hz to 2400Hz Sets the width of the bandpass filter. Range: 1Hz to 800Hz 66 Creative Professional