Some sound cards record with a slight DC offset, in which direct current is introduced into the signal, causing the center of the waveform to be offset from the zero point (the center line in the waveform display). DC offset can cause a click or pop at the beginning and end of a file.
In the Multitrack Editor, Adobe Audition automatically saves each recorded clip directly to a WAV file. Direct‑to‑file recording lets you quickly record and save multiple clips, providing tremendous flexibility.
Inside the session folder, you’ll find each recorded clip in the [session name]_Recorded folder. Clip file names begin with the track name, followed by the take number (for example, Track 1_003.wav).
After recording, you can edit takes to produce a polished final mix. For example, if you create multiple takes of a guitar solo, you can combine the best sections of each solo. (See Trimming and extending clips.) Or, you can use one version of the solo for a video soundtrack, and another version for an audio CD.
In the Multitrack Editor, you can record audio on multiple tracks by overdubbing. When you overdub tracks, you listen to previously recorded tracks and play along with them to create sophisticated, layered compositions. Each recording becomes a new audio clip on a track.
If you’re dissatisfied with a time range of a recorded clip, you can select that range and punch in a new recording, leaving the original clip intact. Though you can record into a specific range without punching in, punching in lets you hear audio immediately before and after a range; that audio provides vital context that helps you create natural transitions.
For particularly important or difficult sections, you can punch in multiple takes, and then select or edit takes to create the best performance.
Audition plays the audio preceding the selection, records for the duration of the selected range, and then resumes playback.
If you don’t need to punch into a specific range, you can quickly punch into a general area during playback.