Audio export settings

When you choose Audio Settings from the menu at the top of the Export Movie Settings dialog box, you can specify the following options:

Rate Choose a higher rate for better audio quality in an exported file, or choose a lower rate to reduce processing time and disk-space requirements. CD quality is 44.1 kHz. Resampling, or setting a different rate than the original audio, also requires additional processing time; avoid resampling by capturing audio at the final rate.

Format Choose a higher bit depth and stereo for better quality, or choose a lower bit depth and mono to reduce processing time and disk-space requirements. CD quality is 16-bit stereo. Stereo provides two channels of audio; Mono provides one channel.

Compressor Specify the codec for Premiere to apply when compressing audio. The codecs available depend on the File Type you specified in the General panel in the Export Settings dialog box. Some file types and capture cards support only uncompressed audio, which has the highest quality, but uses more disk space. Check with your capture card's documentation before choosing an audio codec.

Interleave Specify how often audio information is inserted among the video frames in the exported file. See your capture-card documentation for the recommended setting. A value of 1 frame means that when a frame is played back, the audio for the duration of that frame is loaded into RAM so that it can play until the next frame appears. If the audio breaks up when playing, the interleave value may be causing the computer to process audio more frequently than it can handle. Increasing the value lets Premiere store longer audio segments that need to be processed less often, but higher interleave values require more RAM. Most current hard disks operate best with 1/2- to 1-second interleaves.

Enhanced Rate Conversion Specify a level of quality for converting the sample rates of clips in the Timeline to the sample rate you specified in the Rate option. Enhanced Rate Conversion controls both rate upsampling and downsampling. The Off option resamples audio most quickly but produces moderate quality. The Better option balances quality with processing time. The Best option resamples audio for the highest possible quality but requires the most processing time.

Logarithmic Audio Fades Select to process audio gain levels using the logarithmic scale used by the human ear and by conventional volume controls. Deselect this option to process gain changes using a linear curve. Selecting this option creates more natural-sounding changes as sounds become louder or softer, but may increase audio processing time. This option does not directly affect the audio faders in the Timeline--only the overall gain level.

Create audio preview files if there are: Type a new number in one or both of these boxes if you are experiencing poor playback performance due to more audio tracks or audio effects than your CPU can handle in real time. When you type a number below the actual number of audio tracks or effects used, Premiere renders audio preview files before playing back the video program. Rendering preview files requires extra rendering time, but improves playback performance.

Producing Final Video > Choosing export settings > Audio export settings