The Vibrato effect equals to a cyclical changing of a certain frequency of the input signal. If you select a part of the file with the mouse, the Vibrato effect will be applied to this exact part of the file. Otherwise the whole file will be changed.
In the Properties Window you can change the effect properties. It's possible to select the necessary preset from the dropdown list or set custom values for Depth, Frequency and Phase.
Please note that AVS4YOU programs do not allow you to copy protected material. You may use this software in copying material in which you own the copyright or have obtained permission to copy from the copyright owner.
AVS4YOU is a registered trademark of Online Media Technologies, Ltd., UK. Intel and Core 2 Duo are registered trademarks of Intel Corporation. AMD and Athlon X2 are registered trademarks of Advanced Micro Devices, Inc. Windows 10/8.1/8/7/XP/2003/Vista are registered trademarks of Microsoft Corporation. All other trademarks are the property of their respective owners.