• Dolby Home Theater v4

    • Dolby Home Theater v4 elevates PC audio and delivers a surround sound experience through a PC's built-in speakers, headphones, or a connected home theater.

    • Dolby Home Theater v4 Benefits

      • Authentic Dolby Surround Sound

        Dolby® Home Theater® v4 converts your music and other two-channel (stereo) entertainment into 5.1-channel surround sound, and 5.1-channel entertainment like movies into 7.1-channel sound.

      • Simplified Home Theater Connections

        The Dolby Digital Out feature in Dolby Home Theater v4 makes it easy for you to connect your PC to a home theater system.

      • Consistent Volume Levels

        The Volume Leveler feature in Dolby Home Theater v4 locks in your preferred volume level for more consistent listening.

      • Increased Dialogue Clarity

        Dialogue Enhancer improves the clarity of speech in your entertainment, so you can follow every word.

      • Distortion-Free Performance

        Dolby Home Theater v4 optimizes audio performance for your specific PC model and lets you turn up the volume without distorting the sound.

      • Total Audio Control

        A ten-band graphic equalizer in Dolby Home Theater v4 provides you with complete control over your PC's audio profile.

    • Experience sound to rival the other powerful features in your PC.

      • A Powerful Multimedia Machine

        You watch movies and TV shows on your PC. You use it to stream music. It's your game console and your videoconferencing center. Yet your PC has one major flaw, and that's its sound—tinny and weak at lower volumes, buzzy and rattling when you crank it up. Dolby Home Theater v4 solves the problem of PC audio performance with a suite of technologies that finally make your PC sound like the powerful multimedia machine that it is.

        Dolby pioneered high-quality audio first in the recording studio and at the movies and then in the living room. Dolby Home Theater v4 benefits from decades of experience in areas like noise reduction, speaker optimization, and surround sound. It's a complete solution and improves audio performance whether you choose to listen through your PC's built-in speakers, your favorite pair of headphones, or by connecting your PC to a home theater system.

        The Challenge of PC Audio

        Understanding how Dolby Home Theater v4 works requires understanding the problems inherent in PC audio. These originate in both the quality of the source material and the playback process.

        Typical problems with sources include:

        • Dull sound and unintelligible dialogue on user-generated content
        • Wildly varying volume levels from one source to the next
        • Content not produced in surround sound

        The small speakers and underpowered amplifiers required to fit into the physical design of PCs create other problems. These include:

        • Irregular frequency response with no highs or lows
        • Unnatural, colored sound
        • Volume levels that are typically not loud enough
        • Distortion and annoying mechanical vibrations when sound is turned up

        The Dolby Home Theater v4 Solution

        Designed into a PC, Dolby Home Theater v4 first applies processing that fixes any problems with the source material. It then fixes playback issues by compensating for mechanical constraints of the PC itself.

        Because Dolby engineers custom-tune each PC model that includes Dolby Home Theater v4, the audio processing ensures that you enjoy optimal sound for the specific combination of speakers and amplifier in your PC.

        Dolby Home Theater v4 technologies:

        • Use our latest and most advanced algorithms
        • Draw on our extensive research into how people perceive sound
        • Match human audio perception
        • Are built on a common processing framework
        • Work together intelligently

      • Looking for Drivers?

        Dolby does not have audio drivers available for download. View this list of partner sites where you can download audio drivers.

    • Dolby Home Theater v4 for Professionals

      A comprehensive suite of technologies, Dolby Home Theater v4 dramatically improves audio performance in PCs and makes connecting to a home theater easier.

      PC Manufacturers

      Give consumers the high fidelity they've always wanted from their PCs.

      • Compare Dolby Home Theater v4 Features

        Dolby Home Theater v4 is one of two Dolby technology suites that are part of the Dolby PC Entertainment Experience v4. Dolby Advanced Audio™ v2 is designed to deliver a personal surround sound experience.

    • Feature

      Dolby Surround Sound

      Dolby Home Theater v4

      Dolby Advanced Audio v2

      Surround Expansion (Surround Decoder)

      Surround Virtualizer for Headphones

      Surround Virtualizer for Built-in Speakers

      Dolby Digital Output

      PC Tuning and Optimization

      Built-in Speaker Tuning (Audio Optimizer)

      Built-in Speaker Distortion Prevention (Audio Regulator)


      Graphic Equalizer

      Intelligent (Real-Time) Equalizer

      Dialogue Enhancer


      Volume Leveler

      Volume Maximizer

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