www.kvraudio.com/news/windows-g-releases-e-telephonefx300---free-jsfx-telephone-effect-plugin-67242


Windows-G releases E-TelephoneFX300 - Free JSFX Telephone Effect Plugin

5th June 2026

Windows-G has announced the release of E-TelephoneFX300, a free JSFX telephone effect plugin for REAPER that can be used to simulate the sound of a telephone or AM radio using a bandpass filter (700 Hz – 3.0 kHz) with adjustable resonance (0.2 to 4.0), alongside internally fixed high-pass and low-pass filters that reinforce the frequency shaping. The output level can be adjusted with output gain (-30 dB to +30 dB).

Pricing & Availability

E-TelephoneFX300 is available for free.

This JSFX plugin can also be used in other DAWs through the open-source YSFX plugin. YSFX is available in VST3, AU, and CLAP formats for Windows, macOS, and Linux.

Download YSFX here (Click on "Assets" for the downloads to appear): github.com/JoepVanlier/ysfx/releases


KVR Audio, Inc.
www.kvraudio.com