epanet-js

Ivona Eric Text To Speech 📍

No installs. No forced cloud storage. Just fast, local-first water modeling — powered by the engine you already trust.

The EPANET user's dilemma

  • Classic EPANET is powerful — but clunky and outdated. Workarounds become your workflow — slow and cumbersome.
  • Big-name platforms look polished, but they're overpriced and bloated with features you don't need to analyze your network quickly.
  • Modern browser-based tools exist — but they force your data into the cloud, raising privacy and compliance concerns. Plus, they offer little for those doing long-term planning and analysis.

You shouldn't have to choose between speed, security, and affordability just to understand your water networks.

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Ivona Eric Text To Speech 📍

The voice avoids the mechanical "robotic" transitions common in older TTS software, accurately handling punctuation and sentence flow.

Prosody refers to the rhythm, melody, and intonation of speech. Eric did not just say words; he spoke in complete, flowing sentences.

As the tech landscape shifted from concatenative synthesis to Deep Learning and Artificial Intelligence, the standalone Ivona brand was eventually phased out. Amazon integrated Ivona's core engineering team into its Amazon Web Services (AWS) ecosystem to build , a cloud-based text-to-speech service. ivona eric text to speech

: The voice originally debuted under the name "John" in October 2008. It was later rebranded as Eric to fit into IVONA’s standardized character-named voice portfolios (alongside counterparts like Salli, Joey, and Kendra).

For individuals with visual impairments or reading disabilities, Eric serves as a reliable screen reader. When paired with desktop readers, its precise pronunciation of complex jargon makes consuming long-form text effortless. How to Access and Use Ivona Eric Today The voice avoids the mechanical "robotic" transitions common

In the world of text-to-speech (TTS) technology, few voices have achieved the legendary status of . For over a decade, Eric has been a benchmark for natural, expressive, and highly intelligible synthetic speech, particularly for American English. While the original Ivona brand was discontinued by Amazon in 2018, the legacy of "Eric" lives on, influencing modern TTS systems and remaining a favorite among users who still access legacy versions.

Closing thought Ivona Eric wasn’t just a voice file; he was proof that synthesized speech could be more than functional noise. He helped make talking machines acceptable—and even pleasant—so that when today’s AI voices wow us with realism, we remember that those gains stand on voices like Eric that first bridged the gap between “robotic” and “relatable.” As the tech landscape shifted from concatenative synthesis

While both Ivona and Eric are TTS systems, they differ significantly in their approach and capabilities. Ivona's concatenative approach was innovative for its time, but it had limitations, such as a more robotic sound and limited expressiveness. Eric, on the other hand, uses a deep learning-based approach, which allows for more natural-sounding speech and greater flexibility.

Eric was designed as the flagship voice. It was engineered with a standard, highly professional received pronunciation (RP) accent, making it universally intelligible. Why Ivona Eric Became an Industry Phenomenon

In 2013, Amazon acquired Ivona Software to power its own ecosystem. Amazon utilized Ivona’s underlying technology to build and launch , a cloud-based text-to-speech service, and to develop the voice capabilities of Amazon Alexa . What Happened to Ivona Eric?

Amazon integrated IVONA voices into its Kindle e-readers. For millions of users, "Eric" and his female counterpart "Amy" became the voices that read their favorite novels aloud, making audiobooks highly accessible.

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No setup or downloads — just instant access right in your browser.

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EPANET deserves better — and so do you.

EPANET was a gift to the industry — free, open-source water modeling for all. But commercial vendors built on it, locked away improvements, and left the community behind.

epanet-js is our answer: a faster, simpler, affordable water modeling tool that protects your privacy and sustains the open-source future of water modeling.

We're proud to be part of the next chapter — and we're just getting started.

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Source code of epanet-js on GitHub

When you support epanet-js, you support EPANET.

When you purchase more features in epanet-js, you're investing in the future of open-source EPANET development.

Our open-source model balances innovation and accessibility:

Anyone can build on our code. The two-year commercial-use delay gives us the incentive to keep pushing forward — and that fuels progress for everyone.

That means when you support us, you support more affordable hydraulic modeling software for the entire community.

Simple, transparent pricing for every kind of modeler.

Choose the plan that works for you

Free

For everyone.$0 /year
  • Web based EPANET model
  • Background maps and satellite
  • Automated Elevations
  • No limits on sizes
  • Community Support

ProMost popular

For solo modelers and small utilities.$950 /year

Individual named license

Everything in free, and:
  • Scenarios
  • Professional support
  • Custom layers
Coming soon:
  • Cloud storage
  • Point in time restore - 30 days
  • Demand Analysis

Teams

For teams that build together.$2500 /year

Floating shared license

Everything in Pro, and:
  • Priority support
  • Volume discounts
  • Pay by invoice
Coming soon:
  • Team storage
  • Point in time restore - 90 days
  • Sharing of networks

Have questions? or book a call.

Special access for personal and educational use

Available for non-commercial projects, learning, and student work.

Personal

$100/year

For curious minds and personal growth.

Everything in pro, but:
  • Community support only
  • Non-commercial usage

Education

$0/year

Free for students and teachers.

Everything in pro, but:
  • Community support only
  • Non-commercial usage

Frequently asked questions

Find answers to common questions about epanet-js.

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No install. No login. No cloud required.

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You may not know this, but for decades, the U.S. EPA has given the water industry an extraordinary gift: the free and open-source hydraulic modeling software EPANET. Odds are, if you've used any commercial hydraulic modeling software today, it was built on the EPANET engine.

The problem is, instead of giving back to their open-source roots like other industries do, big-name software vendors took EPANET's open code, built private tools on top of the engine, and then locked those improvements behind patents and proprietary licenses.

Some vendors even pressured the EPA to focus only on the engine — discouraging any effort to improve the interface or user experience for everyone else.

Those vendors now charge you exorbitant prices to use their software while EPANET lags behind — and utilities, engineers, and educators with smaller budgets suffer.

We think this is backwards — and we're on a mission to change it. We're focused on creating a better experience for the entire hydraulic modeling community.

That's why we built epanet-js under an FSL license — because we want to give you an affordable, easy-to-use water modeling option that creates a sustainable future for open-source EPANET development.

Support EPANET by using software that supports it back.

A better future for water modeling.

Simple, quick, and useful right out of the gate — designed to open-and-go.

Launch epanet-js now