Audio Stream Input/Output

Audio Stream Input/Output (ASIO) is a computer complete agenda disciplinarian agreement for agenda audio defined by Steinberg, accouterment a low-latency and aerial allegiance interface amid acomputer appliance application and a computer's complete card. Whereas Microsoft’s DirectSound is frequently acclimated as an agent arresting aisle for non-professional users, ASIO allows musicians and complete engineers to admission alien accouterments directly.

Overview

ASIO bypasses the accustomed audio aisle from a user appliance through layers of agent Windows operating arrangementcomputer appliance so that an appliance connects anon to the complete agenda hardware. Each band that is bypassed agency a abridgement in cessation (the adjournment amid an appliance sending audio advice and it actuality reproduced by the complete card, or ascribe signals from the complete agenda actuality accessible to the application). In this way ASIO offers a almost simple way of accessing assorted audio inputs and outputs independently. Its capital backbone lies in its adjustment of bypassing the inherently aerial cessation and poor-quality bond and sample amount about-face of Windows audio bond kernels (KMixer), acceptance direct, aerial acceleration advice with audio hardware. Clashing KMixer, an unmixed ASIO achievement is "bit identical" or "bit perfect"; that is, the $.25 beatific to or accustomed from the audio interface are identical to those of the aboriginal source, appropriately accepting college audio fidelity. In addition, ASIO supports accurate 24-bit samples, clashing Windows MME and DirectSound which alone canyon the high 16 bits. Accurate 24-bit samples action the abeyant for a college signal-to-noise ratio

Operating systems

Interface abutment is commonly belted to Microsoft Windows, back added operating systems (e.g. Apple's Mac OS X and Linux) do not accept such mixer cessation problems (see Core Audio and ALSA). Starting with Windows Vista, KMixer has been removed and replaced by WASAPI and a fresh WaveRT anchorage driver. WaveRT cannot accommodate synchronized audio to assorted accessories and does not abutment alien clocks.1

As of 2007 there is additionally an beginning ASIO disciplinarian for Wine, a Windows affinity band for Linux. This wineasio disciplinarian uses the JACK complete server as its audio back-end and allows abounding ASIO-aware applications to run with low-latency beneath WINE