MNTRA Ultrasonic Death Whistle X

Death Whistle Virtual Instruments

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  • Regular price $39.00 36% off
  • $25.00

     Instant Delivery

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    Digital Products

    Digital Products are delivered electronically either via your order status page, or via email.

    No physical product will be shipped to you!

    In most cases, the product you purchase from us is a serial number/license code/activation code to register the product with the manufacturer and download directly from them. This ensures you receive the latest version of products, and the best support when necessary.

    After purchase, your license code and relevant links will appear on your order status page, or they will be sent to you by email.

    For detailed instructions on the registration/download process, you can visit our dedicated page by clicking here: Install Instructions.

Education Proof

Products with education pricing are for students & teachers only. To prove your education status we require that you upload proof in the form of an image/PDF.

Types of proof


Student ID Card, Letter of enrollment, or similar


Teacher ID Card, Lecturer ID Card, Payslip, Letter from the school/college

Education proof is submitted to the manufacturer and is accepted at their discretion.

The Basics

iLok is a copy protection method used by many of our brands.

It has 3 types of activations, iLok USB, iLok Machine, and iLok Cloud.

Different brands/products will offer different iLok methods. iLok USB is always an option, but the availability of iLok Cloud and iLok Machine methods is at the discretion of the software developer.

iLok Account

For all iLok protected products, you will need an iLok account. You can create one for free here:!registration

iLok License Manager

To manage your iLok licenses, there is a dedicated app called iLok License Manager. This app is used to register, activate, and move your licenses between locations.

You can download the latest installers from the iLok website:!home

iLok USB Key

iLok USB

This activation is stored on an iLok 2 or 3 USB key.

It is the best option for portability, if you frequently move between multiple machines, and offline use.

iLok Machine ID

Machine ID

This activation is stored locally on your computer.

While this is a convenient way to work offline, and does not require the additional cost of an iLok USB, there is the risk of a license being lost in the case of a drive failure.

This option also requires extra care when you upgrade to a new computer, the license(s) must be deactivated on your old machine first to ensure you do not lose them.

iLok Cloud

iLok Cloud

This activation is based online, and requires a "cloud session" using the iLok License Manager.

It requires an active internet connection for the entire time you use the plugin(s).

The Dark Sounds of Aztec Death Whistles, Expanded

Step into the enigmatic realm of Aztec death whistles with UDW X.

Often dubbed as the world’s most chilling instrument, these ceramic, skull-shaped marvels were used extensively in Mexica spiritual ceremonies and on the battlefield to instill fear in their enemies.

We are thrilled to present our exquisite collection of rare and handcrafted death whistles sourced from years of research, tailored for your unique productions.

Ultrasonic Death Whistle (UDW) is your key to our distinct vision of sampling, supercharged by our robust MNDALA 2 Acoustic Synthesis Engine.

Pairing the depth of our source samples with the expansive sound-shaping capabilities of MNDALA 2, the horizon for creative possibilities is boundless.

UDW X, our expanded version, not only offers over double the samples found in the original UDW but also incorporates advanced features from MNDALA 2.

Delve into Sample Start Modulation, detailed multi-mic position recordings, and novel effect processors that redefine sonic artistry.

To set the stage for your exploration, we’ve also crafted a new bank of more than 60 captivating presets.


  • 78 Presets
  • 32 Instrument Sample Maps
  • 12 Sample Start Modulation Enabled Sample Maps
  • Up to 31 Round Robins
  • Up to 4 Microphone Channels

Proprietary Engine - VST/AU Plugin included. No additional software required.

3-Axis Universal Controls - Simply map your favorite controller once for all plugin instances.

Intuitive Performance GUI - Custom animation-driven performance interface & mouse hover interactions.

Industry Leading Audio Quality - 384khz/32-bit extended ultrasonic range sample sources

CPU-Efficient In-Engine Playback - industry-leading 24-bit 96kHz resolution

The Story of UDW

Performed by MNTRA’s founder – composer and multi-instrumentalist Brian D'Oliveira, UDW X proudly presents our collection of rare pre-Columbian Death Whistles.

These captivating instruments were sourced through years of meticulous field research and development while Brian composed for multiple award-winning AAA video game soundtracks.

Each Death Whistle has been named to echo its unique character. Hand-sculpted, every whistle produces a sound that stands distinctively apart.

UDW X, with its video game-inspired interface, provides non-linear and simultaneous control over a plethora of dynamic parameters, granting you nuanced mastery over musical expression.

The Ultrasonic Death Whistle (UDW) serves as an enticing introduction to our distinct approach to ultrasonic sampling, transformed with the powerful capabilities of our MNDALA 2 acoustic synthesis engine.

By merging rich source samples with the dynamic sound-shaping abilities of MNDALA 2, we offer an expansive canvas for boundless creative endeavors and explorative sound design.

In this Expanded UDW-X version, you’ll find more than twice the samples available in the original UDW.

It incorporates the cutting-edge features of MNDALA 2, from Sample Start Modulation and detailed multi-mic position recordings to our latest bespoke designed DSP effects algorithms.

And to fuel your inspiration, we've included a fresh bank of over 60 curated presets showcasing some of these new sound design features.

With these additions, UDW X pushes our exploration of the mesmerizing Aztec Death Whistles even further, inviting you to a sonic adventure like no other.

    System Requirements

    • MacOS 10.11 El Capitan and above
    • Windows 7 and above (64-bit only)
    • Intel, AMD, or Apple Silicon CPU
    • 8GB RAM or more
    • 13GB free storage space

    Plugin Formats

    AAX Native, AU, and VST3

    User Manual

    Crossgrade Proof

    This crossgrade is for owners of a competing DAW. To prove your DAW ownership, we require that you upload proof in the form of an image/PDF.

    Types of proof

    A copy of your purchase receipt for the original license or the most recent update/upgrade

    A screenshot of your product registration

    A photo of your package (either CD/DVD or printed manual), with the unique serial number included in the photo.