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Windows ASIO Driver

Advanced configuration

Once the control panel has been switched to advanced mode, things begin to look a little more complicated. The device list is now expandable and you can enable more than one item at a time.

Device list items explained:

Devices are independent hardware units most of the time. It is easy to understand the concept of audio devices, as the term in this context means exactly what common sense would suggest.
Each audio device has one or more Device Interfaces (sometimes also called “filters” by Microsoft.) They represent physical sub units of a Device. If a Device has just one single Device Interface, this Interface will not be shown. Selecting a Device – in this case – would also select its Interface. In our example, the single Interface of the last Device in the list is hidden. The visible input(🎤) and output(🔈) items are not Interfaces, but rather so-called “Pins”.
Each Interface has one or more Pins. Each Pin represents a single in-bound or out-bound audio stream. If an Interface has just one single Pin, this Pin will not be shown. Selecting an Device/Interface – in this case – would also select its Pin. In our example, the Interfaces of the first Device in the list are shown, but the Pins are hidden.

Note: It is perfectly possible to use ASIO4ALL without having understood any of the above!

  • Kernel buffers/Buffer offset

    Kernel buffers/Buffer offset

    If hardware buffering is disabled, this control lets you add up to two more buffers to be queued for audio output. Each additional buffer increases the output latency of the device by the time it takes to play one buffer. Therefore, the initial setting of “2” should only be changed on less powerful machines, where… more

  • Allow Pull Mode

    Allow Pull Mode

    There are two basic access methods for a WaveRT device, “pull-mode” (also called “event-mode”) and “push-mode” (also called “polling mode”). If this box is left unchecked, ASIO4ALL will not use “pull-mode”, otherwise it will use it whenever possible. The default mode will be polling, though, because it is the most compatible one. Especially for small… more

  • Always resample 44.1◀▶48kHz

    ASIO4ALL can do real time resampling of 44.1 kHz audio to/from 48 kHz. Resampling will automatically take place whenever ASIO4ALL is opened for 44.1 kHz and the WDM driver does not support this sample rate. There may, however, be instances in which case an audio device will support 44.1 kHz only by resampling internally. More… more