Previewing Audio Filters
You can compare and preview the effect of audio filters by clicking on the Play Original button followed by the Play Result button.
Use the Position scrubber bar to select the area of the file you want to preview
Use the Duration drop down menu to select the length of the preview from 2 to 15 seconds.
Included Audio Filters
AudioDynamicRange Compressor - Audio Dynamic Range Compression Filter.
Use this filter to for compressing the dynamic range of audio.
Lowpass filter – The Lowpass filter removes high-frequency signals, such as electrical noise and hiss, from the audio.
Audio Fade In/Out – The Audio Fade In/Out filter is used to add a fade in and/or fade out to the audio. Use this filter in conjunction with the Video Fade In/Out filter for a audio/video fade in/out.
Normalize – The Normalize filter raises the audio to maximize volume without clipping. This is a dual-pass filter and will increase your source file’s overall conversion time. This filter is useful when performing a batch conversion or stitching various sources together so all the sources are at the same level.
Volume – Lets you adjust the overall volume of the audio.
Saving Custom Audio Filter Presets
A custom preset saves the customized settings of the selected filter. Saving a custom preset is useful if you plan on reapplying the same filter settings in the future. Custom presets are stored with the default presets and can be categorized into folders and subfolders.
1.Select the filter you would like modify from the Filter list.
2. Modify the filter’s properties according to your specifications.
3. Click the Save Preset button. The Save Audio Filter Preset window will appear.
4. At the bottom of the Save Audio Filter Preset window, type in a name the preset and type in a personalized description that will remind you about your custom settings.
5. After you have saved a customized filter preset, simply click Addand load it the same way you would load a default preset.
6.To remove a customized filter preset, click Add to open the Load Audio Filter Preset dialog. Then click the filter preset you want to remove and click the Delete Preset button. You cannot delete the default system presets.