Dolby Home Theater V4 is a Windows driver for tuning various sound characteristics on Lenovo portable computers. You can create custom audio profiles for specific games and programs. Instruments for adding virtual 3D surround effects are available as well.

Compatibility and installation

This utility is intended to be set up on the ThinkPad Edge E220 and E420 models of Lenovo laptops. Officially supported operating systems include Windows 7 32- and 64-bit. However, it is possible to install the driver in more modern OS versions as well.

Capabilities

After setting up the program users can access audio settings by clicking the corresponding tray icon. The main window contains sliders for adjusting the volume and enhancing the dialog clarity. Moreover, tools for changing the strength of virtual surround sound effects separately in speakers and headphones are included.

Similar to Dolby Digital Plus, the provided 10-band equalizer lets you manually tune specific audio frequencies. It is possible to save custom presets and quickly switch between them.

Features

free to download and use;
provides instruments for tuning various sound characteristics;
there is support for several Lenovo laptop models;
it is possible to manually adjust separate audio frequencies with the help of the included multiband equalizer;
sliders for changing the volume and surround sound effect strength are available;
compatible with modern versions of Windows.