Capturing analog audioIf you want to use audio that is not yet in digital form, you need to capture it. With the proper audio- or video-capture card, Premiere can capture audio that is synchronized with its source video or that is independent of it. The quality of digitized audio and the size of the audio file depend on the sample rate (the number of samples per second) and bit depth (the number of bits per sample) of the digitized audio. Also, digitizing stereo audio requires twice as much disk space as mono audio. These parameters, controlled in the Capture Settings section of the Project Settings dialog box, determine how precisely the analog audio signal is represented in digital form. Higher sample rates and bit depths reproduce sound at higher levels of quality, but with correspondingly larger file sizes. If you plan to export or play back the final cut from Premiere, capture audio at the highest quality settings your computer can handle, even if those settings are higher than the settings you'll specify for final export or playback. This provides headroom, or extra data, that will help preserve quality if you adjust audio gain or apply audio effects such as equalization or dynamic range compression/expansion; see Applying and controlling effects. To set the location of a file captured from an audio-only source:
To capture an audio source (Windows):
Note: In Windows, audio input options are affected by the settings in the Multimedia Control Panel and in the capture program you use. For information, see the online Help for Windows and for the capture program. To capture an audio source (Mac OS):
Note: If no audio is recorded or you can't hear your source audio, try playing the audio through the computer speaker system without recording. If you still can't hear it, the audio source may not be properly connected. Check hardware connections, settings in the Multimedia Control Panel (Windows) or the Sound or Monitors and Sound control panels (Mac OS), and the documentation that came with your computer and sound card. |