Adobe AUDITION 1.5 - Manual (Page 119)

111 ADOBE AUDITION 1.5
User Guide
The most common sample rates for digital audio editing are as follows:
• 11,025 Hz Poor AM Radio Quality/Speech (low-end multimedia)
• 22,050 Hz Near FM Radio Quality (high-end multimedia)
• 32,000 Hz Better than FM Radio Quality (standard broadcast rate)
• 44,100 Hz CD Quality
• 48,000 Hz DAT Quality
• 96,000 Hz DVD Quality
Previewing a different sample rate
The Adjust Sample Rate command lets you preview how an audio file will sound at a different
sample rate. This command doesn’t convert the sample rate of the audio file—use the Convert
Sample Type command to do that. (See “Changing the sample rate” on page 111.)
To adjust the sample rate:
1 Choose Edit > Adjust Sample Rate.
2 Enter a sample rate in the text box, or choose a common sample rate from the list.
3 Click OK.
Note: Although you can create and edit any sample rate in Adobe Audition, your sound card
may not be capable of playing it properly. To check the capabilities of your sound card, choose
Options > Device Properties. (See “Setting properties for audio output devices” on page 37.)
Changing the sample rate
The sample rate of a file determines the overall bandwidth of the waveform (that is, how
many frequencies can be encoded within the audio signal). When changing the sample
rate, keep in mind that most sound cards support only certain sample rates.
To change the sample rate of a file:
1 Choose Edit > Convert Sample Type. Alternatively, click the Convert Sample Type
button in the toolbar.
2 Select a rate from the Sample Rate list, or enter a custom rate in the text box.
3 Drag the Low/High Quality slider to adjust the quality of the sampling conversion.
ug.book Page 111 Tuesday, March 16, 2004 1:29 PM