Adobe 22011292 User Guide - Page 172

158 CHAPTER 8 Effects Menu - Edit View • With Lock L/R checked, the scroll bars for the left and right channels will move together, maintaining the same settings for each channel. • Uncheck Lock to adjust the channels separately. Presets Adobe Audition comes with several Quick Filter presets. More information on presets can be found in the "Looking at the Work Area" chapter. Preview Press the Preview button to audition the current Quick Filter setting before you apply it to the waveform. The selection is looped until you press the Stop button. Since Adobe Audition's Previews are dynamic, this gives you the opportunity to make and hear processing adjustments as the selection is continuously played. You can create some very interesting effects by changing the initial and final equalization settings so that they can "morph" from one curve type to another (such as having a "bass-y" curve change to a flat one at the introduction of a song). To produce a semi low-pass filter, set the higher frequency scroll bars to -30 to cut out higher frequencies. Similarly, you can create a high pass filter by reducing the lower frequencies. Note: Boosting any of the frequencies to very high values may lead to clipping. Scientific Filters Adobe Audition's Scientific Filters provide high-order IIR (Infinite Impulse Response) filters for precise band pass, band reject (notch), or high or low pass filtering.