OpenAI Voice Engine Promises Your AI Voice Clone in 15 Sec

Updated on April 2 2024

OpenAI Voice Engine is here and it is capable of cloning a person’s voice using only 15 seconds audio recording. While the history of creating such kind of technology started nearly 2 years ago, OpenAI, the artificial intelligence company backed by Microsoft, recently released Voice Engine promises the next level of generating synthetic voices.

In this articles we will explore features, access and security consideration of OpenAI Voice Engine and also its comparison with other popular voice cloning and text to speech models.

Features of OpenAI Voice Engine

The main function of Voice Engine is straightforward. Users will upload a short audio clip of the desired voice style, usually consisting of a sentence or two. The next step is to type the text that the voice will say. AI engine, which is the basis of Voice Engine, makes an audio analysis of the sample for vocal features like pitch, cadence, and even slight regional dialects.

Here are key features of Voice Engine:

Voice Cloning: Voice Engine’s main function is the function to make copies of voices, making the affected voice sound like a real human voice. This is a remarkable step forward over other text-to-speech APIs, which usually offer a variety of pre-recorded voices or give the users some degree of customization but these inefficiencies cannot match the power of creating voices for text.

Multi-lingual Support: The Voice Engine has the capability of supporting multiple languages, making it possible for users to create synthetic voices that are natural in common languages, which is a common aspect of text-to-speech APIs.

Per-word Timestamps: This feature allows users to align the text with the spoken words, useful for applications requiring synchronization between text and speech.

Pitch Control and Speed Control: Unlike some other systems, Voice Engine allows to choose pitch and speed of synthetic voice, giving more possibilities for customization purposes. This makes it applicable in different systems which require specific voice characteristics.

Phone Formats Support: This API is compatible with almost every phone format used across different applications, devices and different applications.

How OpenAI Voice Engine Works

Voice Engine, one of the most advanced voice cloning technologies introduced by OpenAI, features the ability to analyze a short audio sample of any person’s voice to create a synthetic copy that not only compares but even mimics the original voice. The use of deep learning algorithms that are trained especially using a large dataset of voices makes this process possible.

The main parts of voice engine:

Short Audio Sample: It needs just a 15-second speech of a person to make a synthetic clone. The sample is assessed to point out the unique features of voice, such as pitch, tone, and rhythm.

Deep Learning Algorithms: Voice Engine utilizes sophisticated deep learning algorithms that have been trained on a mix of licensed and publicly available data. These algorithms are capable of learning the intricate patterns and nuances of a voice from a relatively small amount of audio.

Synthetic Voice Generation: Once the voice sample is processed, the algorithms generate a synthetic voice that closely mimics the original. This synthetic voice can then be used to read out text or perform other voice-related tasks.

Explore More: Best AI Voice Tools

OpenAI Voice: Comparing Top Text-to-Speech Models

Lets look at how OpenAI Voice Engine compares against popular AI voice models:

FeatureAmazon PollyMicrosoft Azure AI SpeechGoogle Cloud Text-to-SpeechOpenAI Voice Engine (Limited Release)
Voice CloningNoNoNoYes
Free TierYesLimited Free TierLimited Free TierUnknown
Voice CustomizationYesYesYesYes
Text-to-Speech QualityHighHighHighHigh
Language SupportMultipleMultipleMultipleLimited (Beta)
Intonation & EmotionLimitedYesLimitedLimited (Beta)


Explore More: Best Text to Speech AI Tools

Security Features

Security features of OpenAI Voice Engine

Lets look at how OpenAI pans to make this technology safe:

Watermarking: OpenAI has plans to implement watermarks in the audio so that in case any misuse, the same can be accounted for. Because of it, the organization can correspond any output sound with a known origin, providing a benchmark for safety and transparency.

Usage Policies: OpenAI has defined rules of usage for its partners, including the provision of consent to all speakers involved (informed and explicit), prohibiting use of the tech to mimic people or organizations without consent and clearly (to say that the voices generated are AI ones) to disclose this to listeners only.

Monitoring and Control: The technology is designed to be available to a limited number of developers, with OpenAI closely monitoring its deployment and usage to ensure responsible practices.

Access OpenAI Voice Engine

For now, only a few trusted partners of OpenAI have been given access to test it out. These companies include likes of HeyGen.

For public access, OpenAI has not confirmed a specific date. They are working on making it better by gathering and working on the feedback from the partners testing it.

OpenAI wants to make sure Voice Engine is safe before letting everyone use it which is a right thing to do for such a technology to avoid any Google Gemini like fiasco.

Read More: Google Gemini Fiasco


OpenAI Voice Engine represents a significant advancement in the field of voice cloning technology, offering a unique capability to generate synthetic voices from short audio samples. While other APIs have been providing text-to-speech conversion already, cloning voice from audio samples using Voice Engine represents a whole new level to the field.

This innovation opens up new possibilities for applications in reading assistance, content creation, and more, showcasing the potential of OpenAI’s technology to transform the way we interact with digital content.

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