Audio stream input / output

Audio Stream Input / Output ( ASIO ) is one of Steinberg developed multi-channel capability audio transfer - protocol .

Using ASIO, a corresponding software is enabled to access the multi-channel capabilities of many (professional) sound and recording cards. In addition, ASIO enables the low latencies required for professional use . In favorable configurations, the latency can be reduced to a few milliseconds.

ASIO is supported by many audio and midi sequencers ; many audio interface manufacturers provide ASIO drivers for their products. The current version of ASIO is 2.3 (as of June 21, 2020) and supports 64-bit systems and DSD ( Direct Stream Digital ). All Windows versions from Windows 98 Second Edition are supported.

Under Windows, ASIO is the software and hardware standard for real-time sound processing. Alternatives, also with other operating systems, are:

• ALSA (Linux)
• Core Audio (Mac OS X)
• JACK (Linux, Mac OS X and Windows)
• WDM Kernel Streaming (Windows)

See also

• Musical Instrument Digital Interface (MIDI)
• VST

Web links

• Steinberg homepage

ASIO driver for standard sound cards:

• http://www.asio4all.com - ASIO4ALL
• http://www.asio2ks.de - ASIO2KS
• http://www.kxproject.com - KX project
• JACK