SOUND4 Helpdesk/SOUND4 Labs/IMPACT FM .CL Driver version downloads

IMPACT FM .CL Driver version downloads

All you need for installing your IMPACT FM .CL with audio driver I/O
 

IMPACT FM .CL Driver version downloads

Windows Compatible - 64 bits - Runs on 10, 11, server 2019, 2022
Let's explore how your IMPACT FM .CL instance integrates with your Windows audio driver. It operates as a soundcard with both input and output capabilities, with IMPACT FM .CL at its heart. The installation process creates a virtual audio driver expertly crafted by SOUND4 ensuring optimal reliability.

Preview version v2.0.2 - 2026-11-11:
💰

Featuring New Technology for lower CPU usage, more capacity, and lower cost!

This first version includes our latest optimizations, significantly reducing CPU usage. Make the most of your existing infrastructure and lower your hosting costs.
IMPACT FM .CL ASIO earlier versions
IMPACT FM .CL Processing Engine Librairies changelog

2.0

2.0.2

(Preview - 2026-11-12)
  • Security updates
  • Various fixes, including :
    • Web interface: the login password is protected again
    • Fixed a rare crash when loading a preset while an undo/redo client is connected
    • RDS: more characters correctly encoded

2.0.1

(Preview - 2026-10-13)
  • New clipper, clearer sound
  • Correct MPX overshoots depending on RDS/Embed pilot configuration
  • Security updates

2.0.0

(Preview - 2026-10-12)
  • Much lower CPU usage
  • Audio:
    • Processing and setting ranges aligned with the IMPACT FM hardware processor (notably bass enhancer, MPX power, AGC, R128)
    • Same sound whatever the audio block size
    • Separate FM and MPX diversity delays
  • Faster and more reliable shutdown, various fixes
  • Web interface: safer login, setting descriptions in the setup dialogs
  • Security updates
  • WARNING: audio changes on existing presets (closer to the IMPACT FM hardware processor)
Linux compatibility : needs GLibC 2.31 and kernel 5.4