ProFire 2626 | User Guide | 24 |
Sample Rate
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▶Attention Vista Users: When using the ProFire 2626 WDM/MME (i.e.,
When the sample rate is locked to an external digital clock source, the Power Indicator LED (10) remains continuously illuminated; when the sample rate is unlocked, the Power Indicator LED (10) blinks and a warning message appears in a red rectangle just below the Sample Rate menu.
Buffer Size (Windows only)
Windows only:
Buffer Size
This menu sets the size of the input and output buffers on ProFire 2626.
Buffers are used to help keep audio hardware and software running smoothly by processing audio in groups of samples rather than one sample at a time. Due to variations between computer hardware and software, it is impossible to recommend a single optimum setting for all systems. It may be necessary to experiment with various settings until you find the best buffer size for your system.
The goal of setting a buffer size is to reduce it as much as possible without hearing any clicks, pops, or other glitches. If the buffer size is too small, the computer will not be able to make all the required audio calculations on time and you will hear pops, clicks, and stuttering in your audio streams. On the other hand, if the buffer size is set too high, your computer will process audio without incident, but your software will feel sluggish and unresponsive.
To find your system’s optimum buffer size setting, begin with a high setting and gradually reduce the size until you begin to hear clicks, pops, or other audible glitches in your audio. Then, raise the buffer size setting until these glitches disappear. You may need to stop playing audio any time you change this setting and certain applications will require you to
NOTE: This menu only appears on Windows systems. Most Mac OS X applications allow to change the buffer size from within the audio application itself. Please see your audio application’s user guide to learn how to change this setting.