Apple Final Cut Express 4 - Manual (Page 1031)

Chapter 67 Exporting Using QuickTime Conversion 1031
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 Format: To reduce file size and download bandwidth, choose a codec to compress
the audio tracks. If you’re outputting full-resolution audio, choose Linear PCM.
 Channels: Select Mono, Stereo (L R), or 2 Discrete Channels. If you’re delivering
material for the Internet, you may want to choose Mono because it cuts your audio
file size in half. Some formats support additional channel configurations.
 Rate: Choose a standard sample rate from the pop-up menu or enter a value to
specify the output rate for the audio. Lower sample rates take less bandwidth but
have lower quality.
 8–22.225 kHz: These lower sample rates are used mainly for multimedia and web
movies to reduce file size.
 32 kHz: A lower-quality sample rate often used on consumer DV camcorders. This
option isn’t particularly useful for exporting unless you specifically need to make a
file that is compatible with a 32 kHz device.
 44.1 kHz: This is the sample rate of music CDs.
 48 kHz: Most digital video formats use this sample rate.
 96 kHz: This sample rate is common in professional audio and music production.
 192 kHz: This sample rate is typically used by high-end audio mastering facilities.
 Show Advanced Settings: Select this checkbox to set additional options, if the
selected audio format supports this.
 Render Settings—Quality: If your sequence or clip sample rate doesn’t match your
export sample rate, this pop-up menu appears. You can choose from several
quality options.