About the mastering process
Mastering describes the complete process of restoring and enhancing audio files for a particular medium, such as radio, video, CD, or the Web. In Adobe Audition, you can master either individual audio files in Edit View or groups of files in a batch process. (Batch processing is particularly useful if you plan to burn a group of files to CD. See About scripting and batch processing.)
The mastering process consists of several stages, which are usually performed in the following order:
1. Analysis
To determine the overall frequency and dynamic range of the existing file.
2. Noise reduction
To remove unwanted hiss, hum, clicks, or pops. (See Removing noise.)
3. Equalization
To achieve the desired tonal balance. (See Filtering audio.)
4. Compression
To maximize perceived volume. (See Optimizing amplitude.)
5. Normalization
To ensure that the loudest sounds reach the highest possible level that digital systems allow--0 dBFS. (See Using the Normalize effect (Edit View only).)
You can reverse the order of the equalization and compression stages, but be aware that the volume of some tonal ranges may be over- or under-emphasized.Before mastering audio, consider the requirements of the destination medium. If the destination is the Web, for example, the file will likely be played over speakers that poorly reproduce bass sounds. To compensate, you can boost bass frequencies during the equalization stage of the mastering process.
About scripting and batch processing
Adobe Audition scripts let you save a series of actions such as copying data or applying an effect, so you can perform those actions again with the click of a button. Scripts are simple text files that are similar to macros; Adobe Audition stores the exact actions of your mouse and any tweaking of parameters, so you can repeat them in the same sequence when you run the script.
For example, suppose you have a combination of effects with particular settings (an EQ setting, a Hall reverb, and so on) that you want to apply often and in combination to achieve a certain sound. You can record these steps, along with effects' specific settings, and then apply them at any time simply by calling the script.
Analyzing frequency, phase, and dynamic range
In Edit View, you can analyze the frequency, phase, and dynamic range of an audio file. These analysis options are particularly helpful when used in conjunction with the many enhancement and restoration effects in Adobe Audition. For example, you can use the Frequency Analysis window to identify problematic frequency bands, which you can then correct with a filter effect. Similarly, you can use the Waveform Statistics dialog box to determine dynamic range and then compress that range with an amplitude effect.
To analyze a multitrack clip, double-click it to access Edit View. Related Subtopics:
Removing noise
In Edit View, you can use effects in the Noise Reduction menu to reduce background noise and broadband noise without reducing audio quality.
Related Subtopics:
Filtering audio
Filter effects change the frequency content of audio, letting you adjust tonal range to enhance audio or create special effects. (Be aware, however, that significantly boosting a frequency can cause clipping.)
Related Subtopics:
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