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What is Piper TTS?

Piper is a high-speed, localized neural text-to-speech (TTS) system specifically designed for devices such as the Raspberry Pi 4, with the goal of delivering exceptional speech synthesis capabilities independent of cloud services. By utilizing neural network models created with VITS and later converted to ONNX Runtime, it ensures both efficient and lifelike speech generation. The system supports a wide range of languages including English (US and UK variations), Spanish (from Spain and Mexico), French, German, and several others, along with options for downloadable voices. Users can interact with Piper through command-line interfaces or easily incorporate it into Python applications using the piper-tts package, allowing for versatile usage. Features like real-time audio streaming, the ability to process JSON inputs for batch tasks, and support for multi-speaker models further enhance its functionality. In addition, Piper leverages espeak-ng for phoneme generation, converting text into phonemes prior to speech synthesis. Its versatility is evident in its applications across multiple projects such as Home Assistant, Rhasspy 3, and NVDA, showcasing its adaptability to various platforms and scenarios. By prioritizing local processing, Piper is particularly appealing to users who value privacy and efficiency in their speech synthesis applications. Its capability to operate seamlessly across different environments makes it a powerful tool for developers and users alike.

What is Naturaltts?

Naturaltts serves as a text-to-speech solution tailored for educational institutions, research teams, and initiatives centered on accessibility. It empowers organizations to transform text, PDFs, and DOCX documents into high-quality audio within a collaborative framework designed for academic and professional applications. Offering features such as multilingual capabilities, shared workspaces, administrative oversight, guided evaluations for educational purposes, and in-dashboard assistance, Naturaltts enhances the ability of institutions to implement text-to-speech technology efficiently, thereby improving accessibility, facilitating research, and streamlining the document-to-audio process. This innovative platform not only supports diverse educational needs but also promotes inclusivity within learning environments.

Media

Media

Integrations Supported

JSON
Python

Integrations Supported

API Availability

API Availability

Pricing Information

Free
Free Version

Pricing Information

Naturaltts offers a Free Trial for individual evaluation and an EDU Trial for verified schools and universities.
Free Trial Offered?

Supported Platforms

Linux

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub
Online Training

Company Facts

Organization Name

Rhasspy

Company Location

United States

Company Website

github.com/rhasspy/piper

Company Facts

Organization Name

Naturaltts

Date Founded

2019

Company Location

Ukraine

Company Website

naturaltts.org

Categories and Features

AI Models

Not specified

AI Voice Models

Not specified

Text to Speech

Not specified

Categories and Features

Text to Speech

Adjust Speaking Rate / Pitch
Audio Optimization
Different Voice Choices
Multi-Language Support

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