FlexASIO

FlexASIO 1.10b

Flexible audio support for demanding creative work

  • By Etienne Dechamps
  • Open Source
  • Updated Jun 2, 2024
Download for Windows

About FlexASIO

A universal ASIO driver, meaning that it is not tied to specific audio hardware.

What's new in 1.10b

This is a hotfix release to address a regression in FlexASIO 1.10 that can result in hangs/freezes in some applications (most notably, Cycling 74' Max 8) that do not signal outputReady() for the last bufferSwitch() while stopping. See #235.

Full release notes »

Technical details

PublisherEtienne Dechamps
Version1.10b
Release date2024-06-02
LicenseMIT
Installer typeinno
Architecturex86
Package IDdechamps.FlexASIO

Install FlexASIO from the command line

Install with Windows Package Manager
winget install --id=dechamps.FlexASIO -e
Update to the latest version
winget upgrade --id=dechamps.FlexASIO -e
Uninstall
winget uninstall --id=dechamps.FlexASIO -e
Silent install with the offline installer
"FlexASIO-1.10b.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-

asioaudiodriver

FlexASIO version history

1.9 May 7, 2022

Significant changes

  • FlexASIO now supports a new PortAudio feature: WASAPI loopback recording.
  • This takes the form of new WASAPI input devices whose name end with [Loopback]. These devices make it possible to capture the output of the corresponding output device ("record what you hear"). See #150, PortAudio/portaudio#668.
  • For more information, see the updated WASAPI documentation.

Minor changes

  • FlexASIO will now refrain from logging if the logfile size exceeds 1 GB. See #146.
  • This is to avoid accidental disk space exhaustion when forgetting to remove the logfile.
  • Fix potential compatibility issues with some ASIO host applications (e.g. Audio Precision) that make ASIO calls with invalid/bogus sample rates. See #135.
  • PortAudio was updated to latest master.
1.8

Frequently asked questions

Is FlexASIO free?

Yes. FlexASIO is free and open-source software released under the MIT license.

What is the latest version of FlexASIO?

The latest version is 1.10b, released on Jun 2, 2024.

Is it safe to download FlexASIO?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with fe496bcc08d6c421c6244c8a60ac7b538560bda138000fd1a54ab8ebce031209.

Which Windows versions does FlexASIO support?

FlexASIO runs on Windows and is available for 32-bit (x86) systems.

How do I install FlexASIO silently?

Run the offline installer with "FlexASIO-1.10b.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-, or install it with Windows Package Manager: winget install --id=dechamps.FlexASIO -e --silent.

How do I uninstall FlexASIO?

Open Settings › Apps › Installed apps, find FlexASIO and select Uninstall. From the command line, run winget uninstall --id=dechamps.FlexASIO -e.