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What makes Eric special? Listeners describe him as:
Amazon discontinued the "Ivona" brand name, but the voices live on in Amazon Polly.
When benchmarked against Mozilla TTS (Tacotron 2 + WaveGlow) on the same corpus, Eric achieved a +0.5 MOS advantage and ≈ 30 % lower latency on a single‑core CPU. This underscores the value of mature commercial voices for latency‑critical services.
To understand Eric, we must first understand Ivona. Founded in Gdansk, Poland, in 2001, Ivona Software GmbH specialized in creating high-definition TTS voices. Unlike early synthesizers that sounded metallic, Ivona used a method called Unit Selection Synthesis combined with HMM (Hidden Markov Model) tuning.
In 2013, Amazon acquired Ivona. This acquisition had a massive impact on the TTS landscape. Amazon quietly replaced the generic voices of Alexa with Ivona’s technology. In fact, if you have ever heard the default "Joanna" or "Matthew" voices on Amazon Polly or early Echo devices, you have heard the DNA of Ivona.
However, the original Ivona suite—including the voice Eric (US English) —remains a cult classic.
Several Windows applications purchased licenses for the Ivona engine before the acquisition. If you buy or download these legacy versions, you can install the Eric voice.
Eric excels at articulation. This makes him an excellent choice for:
In January 2013, Amazon acquired Ivona Software. The Ivona technology became the underlying engine for Amazon Polly (Amazon's cloud TTS service) and the voice assistant Alexa. Consequently, the "Eric" voice is now part of Amazon's broader speech infrastructure, though it retains a legacy following among users of desktop TTS software.
What makes Eric special? Listeners describe him as:
Amazon discontinued the "Ivona" brand name, but the voices live on in Amazon Polly.
When benchmarked against Mozilla TTS (Tacotron 2 + WaveGlow) on the same corpus, Eric achieved a +0.5 MOS advantage and ≈ 30 % lower latency on a single‑core CPU. This underscores the value of mature commercial voices for latency‑critical services.
To understand Eric, we must first understand Ivona. Founded in Gdansk, Poland, in 2001, Ivona Software GmbH specialized in creating high-definition TTS voices. Unlike early synthesizers that sounded metallic, Ivona used a method called Unit Selection Synthesis combined with HMM (Hidden Markov Model) tuning.
In 2013, Amazon acquired Ivona. This acquisition had a massive impact on the TTS landscape. Amazon quietly replaced the generic voices of Alexa with Ivona’s technology. In fact, if you have ever heard the default "Joanna" or "Matthew" voices on Amazon Polly or early Echo devices, you have heard the DNA of Ivona.
However, the original Ivona suite—including the voice Eric (US English) —remains a cult classic.
Several Windows applications purchased licenses for the Ivona engine before the acquisition. If you buy or download these legacy versions, you can install the Eric voice.
Eric excels at articulation. This makes him an excellent choice for:
In January 2013, Amazon acquired Ivona Software. The Ivona technology became the underlying engine for Amazon Polly (Amazon's cloud TTS service) and the voice assistant Alexa. Consequently, the "Eric" voice is now part of Amazon's broader speech infrastructure, though it retains a legacy following among users of desktop TTS software.