How to Guide on ViPER4Android Audio Effects: A Complete Guide



Welcome to our comprehensive guide on ViPER4Android, a versatile audio enhancement tool for Android devices. Whether you’re a ROM maker or an audio enthusiast, this guide will provide valuable insights into optimizing your audio experience. Explore the features, bug fixes, limitations, and step-by-step instructions to get started with ViPER4Android.

Alert – Illegal ViPER4Android Theft/ViPER4Android Clone:

Recently, we discovered an Android paid app that closely resembles ViPER4Android. Please be aware of the following app:

Please note that ViPER4Android is always free, and we urge you not to mistake the above apps for genuine ViPER4Android. Avoid falling for such scams and refrain from purchasing them.

ViPER4Android - tech justice

ViPER4Windows Official Release:

In celebration of our website launch, we are thrilled to announce the official release of ViPER4Windows. Visit the ViPER4Windows page for detailed descriptions and instructions. Download all ViPER-related content, including V4A, V4W, and IRS files, from our download page.

Registration and Commenting on Our Website:

You can now register an account on our website and actively participate in discussions by posting comments on our news and posts. Please note that registration is currently disabled, but we will make an announcement once it’s ready for use. Stay tuned!

Release History and Updates:

  • 6 October 2013: Updated FAQs, bug reports, troubleshooting, and requirements for ROM makers.
  • 30 September 2013: Comprehensive update to the original post, including instructions, changelogs, downloads, bugs, FAQs, troubleshooting, and default settings.
  • 20 September 2013: ViPER4Android featured on XDA Developer TV. Check out the quick review by Jimmy McGee’s Android App Review.
  • 4 September 2013: ViPER4Android featured on XDA-Developers Portal. Thank you to the news writer for the coverage.

Official Website and Social Channels:

Visit the official website of ViPER’s Audio:

Stay connected with us:

About ViPER’s Audio:

Learn more about ViPER’s Audio:

Software Descriptions:

  • Version: FX version (active) / XHiFi version (discontinued)
  • Codename: FX version – Beautiful / XHiFi version – X-Factor
  • Compiled date: September 1, 2016 / September 4, 2013 – Official Release
  • Operating environment: Android 2.3 / 4.0 / 4.1 / 4.2 / 4.3 / 4.4 / 5.0 / 6.0 / 7.0
  • CPU platforms: ARM (ARM CortexA8 or higher), x86(Atom/i3/i5/i7)
  • Language: English (US) / Simplified Chinese / Traditional Chinese / more

ViPER4Android FX Key Features:

  • FET Compressor for simulating FET circuit operation.
  • Quad-Channel Convolver with IRS support.
  • AnalogX for a richer, warmer sound.
  • ViPER-DDC for near HIFI sound on headphones.
  • Spectrum Extension for lossless music with enhanced high frequencies.
  • x86 Platform Support for compatibility with Atom/Core i3/i5/i7 platforms.
  • USB/Dock effect Support for USB/Dock audio output.
  • Speaker Optimization for enhanced speaker performance.
  • Channel Pan for controlling left/right channel output.
  • Differential Surround / Haas Effect for spatial audio.
  • ViPER Fidelity Control for precise audio tuning.
  • ViPER Bass for powerful bass enhancement.
  • ViPER Clarity for balanced bass and clarity.
  • Headphone Surround+ (VHS+) for immersive surround sound.
  • Auditory System Protection (Cure Tech+) for safe listening.
  • Convolver for loading impulse response samples.
  • FX Compatible Mode for compatibility with various music players.
  • And much more!

Last Update Log:

  • Note: FX v2.3.2.5 onwards:
  1. Full x86 platform support, although optimization is ongoing (VHS+/Convolver may increase battery usage).
  2. Full support for true octa-core devices.
  3. Correctly-installed Busybox is required before installing V4A.
  • FX version: v2.5.0.5 (New package name! Please uninstall any previous version).
  • Android 7.0 Nougat users >>>> Try this fix apk:

Download Fix APK


Access the following downloads for ViPER4Android:

IRS Impulse Response Sample:

Access IRS samples for ViPER4Android at the official website: IRS Samples


At the moment, the V4A Project Donation account is not available. Stay tuned for updates on the official website: Donation Page

Open Source at GitHub:

If you want to contribute code, email your git username to [email protected].


Explore the world of enhanced audio with ViPER4Android. From its FX version’s comprehensive features to the discontinued XHiFi version, you have the power to optimize your sound experience. Stay up to date with the latest releases, bug fixes, and limitations. Download the appropriate version for your Android device and enjoy the unmatched audio enhancements provided by ViPER4Android.

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