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Dialog box referencePreferences dialog ► Audio - Driver Settings

The Driver Settings section lets you specify the audio timing master devices, default sampling rate and other audio settings.
The Driver Settings section contains the following settings:
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Playback Timing Master. If you’re using multiple wave drivers for playback, this list lets you specify which audio device should control the playback timing.
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Record Timing Master. If you’re using multiple wave drivers for playback, this list lets you specify which audio device should control the recording timing.
Audio Driver Bit Depth. Determines the number of bits per sample used for communicating with the audio hardware for playback. Your audio hardware must be capable of supporting the setting you supply here. In SONAR, choose between 16, 18, 20, 22 and 24. In most cases, even if your hardware is “advertised” as being 18 or 20 bit, you will want to set this value to 24 for optimum performance. SONAR 16-bit only.
Note: Using an audio driver bit depth that is greater than 16 means you also need to choose a preferred setting in the Stream >16 Bit Data As field in Edit > Preferences > Audio - Audio Profiles.
64-bit Double Precision Engine. Enabling this check box chooses 64-bit (double-precision) mixing in SONAR throughout the entire signal path. This includes dithering and plug-ins. SONAR will send and receive 64-bit data to and from all plug-ins that accept 64-bit data. If a plug-in requires 32-bit data, SONAR will send and receive 32-bit data.
Stereo Panning Law. Use this menu to choose a panning law for the current project and new projects. The current project’s panning law is also displayed in the File Stats window, which appears when you open the File Info dialog box (Project > Info command), and click the File Stats button. Determines the mathematical formula used to control panning. The choices are:
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(Default) 0 dB center, sin/cos taper, constant power. This choice causes a 3 dB boost in a signal that’s panned hard left or right, and no dip in output level in either channel when the signal is center panned.
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-3dB center, sin/cos taper, constant power. This choice causes no boost in a signal that’s panned hard left or right, and 3dB dip in output level in either channel when the signal is center panned.
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0dB center, square-root taper, constant power. This choice causes a 3 dB boost in a signal that’s panned hard left or right, and no dip in output level in either channel when the signal is center panned.
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-3dB center, square root taper, constant power. This choice causes no boost in a signal that’s panned hard left or right, and 3dB dip in output level in either channel when the signal is center panned.
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-6dB center, linear taper. This choice causes no boost in a signal that’s panned hard left or right, and 6dB dip in output level in either channel when the signal is center panned.
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0 dB center, balance control. This choice causes no boost in a signal that’s panned hard left or right, and no dip in output level in either channel when the signal is center panned.
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Dim Solo Gain. Dim Solo is a mode in which non-soloed audio tracks/buses are still audible but at a reduced level. The default gain reduction is -6dB, but can also be configured for -12dB and -18dB. For more information about Dim Solo, see Dim Solo mode.
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Sampling Rate. The Sampling Rate list allows you to enter or select an audio sampling rate for a new project. After audio has been added to the project—either by recording audio or by using the File > Import > Audio command—you can no longer change the sampling rate for that project. Therefore, you should choose the sampling rate immediately after choosing File > New to start a new song.
You can also enter any hardware supported value in the Sampling Rate field. Consult your hardware documentation for supported sampling rates.
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Buffers in Playback Queue. This value determines the buffer characteristics for transfers to and from the audio drivers. Lowering this value improves audio Latency, though making it too low makes your system more susceptible to stuttering or dropouts.
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Buffer Size Slider. This control lets you set mixing latency manually, overriding the value set by the Wave Device Profiler. Lower numbers increase the risk of audio problems. WDM sound card drivers offer lower latency than the older MME type.

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