Choose Project > Project Settings > Audio, to specify the following options:
Rate In general, higher rates provide better audio quality when you play audio back from the Timeline, but they require more disk space and processing. Resampling, or setting a different rate from the original audio, also requires additional processing time and affects the quality; try to capture audio at the final rate. Note that with DV audio, you can capture only at the rate that was originally used to record the audio. In this case, it's best to match the predominant rate of the clips in your project. If you want to use a different rate in your final output, you can export at a different rate to resample, or you can change the rate in the project preset when you are done editing.
Optimize Stills Select to use still images
in a project set to 30 frames per
frame instead of 60 frames at 1/30 of a
Higher bit depths and stereo provide better quality but require more disk space and processing.
Compressor Specifies the codec for Premiere to apply when playing audio back from the Timeline. The codecs available depend on the Editing Mode you specified in the General panel in the Project Settings dialog box. Click Advanced Settings (if available) to set options specific to the selected codec. Generally, you don't want to compress audio for playback from the Timeline; instead, compress audio when exporting.
Interleave Specifies how often audio information is inserted among the video frames in the preview file that is created when you play audio back from the Timeline. This value is set by the preset you choose and generally does not require adjusting. A value of 1 frame means that when Premiere plays back a frame, 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 too much audio at once. Decreasing the value makes Premiere store longer segments that need to be processed less often, but it requires more RAM.
Enhanced Rate Conversion When you play audio back from the Timeline, this option specifies a level of quality for converting the sample rates of clips in the Timeline to the sample rate you specified in the Rate and Format options. Enhanced Rate Conversion controls both rate upsampling and downsampling. The Off option resamples audio the fastest, but produces moderate quality. The Better option balances quality and processing time. The Best option resamples audio for the highest possible quality but requires the most processing time. Because this option can affect playback performance, you may want to select Off while editing, and then select Better or Best for the final render after you have finished editing or when you are exporting.
Use Logarithmic Audio Fades Controls how audio gain increases or decreases are perceived during playback in Premiere. Select this option to process 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 increases audio processing time. Audio faders in the Timeline are not changed except as a result of this option's processing of the overall gain level.
Create Audio Preview Files If There Are _ or More Specifies when Premiere creates Boston massacre an audio preview instead of real-time playback, based on how many audio tracks are active and how many audio effects are applied in those tracks. The number of audio tracks active and effects applied directly affects the load on your system resources. When your system resources are exceeded by audio processing demands, you will hear pops and clicks while playing back audio in Premiere. If you encounter this problem, decrease the settings for these parameters so that Premiere creates audio preview files instead of trying to process more than it can handle.