Pyro Industries API-1394PCI Uživatelský manuál stáhnout pdf (Strana 174)

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■ THE AUDIO TOOL

Figure 4.22 Adjusting output in the Audio Project Settings menu

Sampling Rates

The sampling rate of audio on your system is very important. You can select a sampling

rate before digitizing audio (on the Main tab of the Audio Project Settings menu; see

Figure 4.23). The highest sampling produces the best quality. Sampling rates available

are 32 kHz, 44.1 kHz, and 48 kHz.

Figure 4.23 Selecting a project sample rate

Obviously, 48 kHz is the best quality, so it should be selected. On the other hand,

if all four audio tracks are used on a DV camera, the audio is sampled at 32 kHz. You

can select lower sampling rates, but they will apply globally to all the audio in your

system. Changing the sampling rate does not minimize the file size, so you should

normally go with the best quality.

Another parameter in the Audio Project Settings menu is Convert Sample Rates

During Playing. I always use this parameter, but it is especially important when captur-

ing from a variety of sources.

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