![]() ![]() Variable bit rate constrained: Uses the value set in “Bit rate” to determine the maximum bit rate for the encoded audio. This option provides a more consistent bit rate than variable bit rate. There are four options:Ĭonstant bit rate: Uses the value set in “Bit rate” to determine the bit rate for the encoded audio.Īverage bit rate: Uses the value set in “Bit rate” to determine the target average bit rate for the encoded audio. Quality: Use this pop-up menu to select the quality of the audio output.īit rate: Use this pop-up menu to set the bit rate for the encoded audio.īit rate strategy: Use this pop-up menu to select the strategy used to encode the audio. Sample size: Use this pop-up menu to manually set the sample size of the audio signal.įormat: Use this pop-up menu to set the format of the audio output. The higher the sample rate, the higher the audio quality and the larger the file size. Sample rate: Use this pop-up menu to set the number of times per second that music waveforms (samples) are captured digitally. For more information about audio channel layouts, including the surround sound channel layout, see Audio channel layouts in Compressor. ![]() For example, if you add a 10-second source file with a frame rate of 24 fps to Compressor, set the “Frame rate” property in the Video inspector to 25 fps, and then select “So source frames play at 25 fps” in the General inspector, the resulting duration of the transcoded clip (at 25 fps) will be 9 seconds and 15 frames.įor more information, see Retime video and audio using Compressor.Ĭhannel layout: Use this pop-up menu to manually set the type of audio channel layout. This property has no effect unless the “Frame rate” value in the Video inspector is different from the source file’s frame rate. So source frames play at fps: Nondestructively changes the playback speed of the clip without discarding frames or creating new frames. Enter a timecode duration in the field or click the arrows to increase or decrease the time. Enter a value in the percentage field or choose a preset value from the adjacent pop-up menu (with a down arrow). Set to percent of source using: Modifies the output clip’s speed by a percentage of the source clip’s speed. Sets the processing algorithm used to adjust the frame rate during transcoding. Use the command line to submit Compressor jobs.Transcode Final Cut Pro and Motion projects.Add and remove transcode presets from watch folders.Access watch folder settings and properties. ![]()
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