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features
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support

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Description

Amazon Polly is a service designed to convert written text into realistic speech, enabling the development of applications that can communicate vocally and fostering the creation of innovative speech-enabled products. Utilizing state-of-the-art deep learning technologies, Polly's Text-to-Speech (TTS) service produces natural-sounding human voices. With a variety of lifelike voices available in numerous languages, developers can create speech-enabled applications that are functional in diverse global markets. Beyond the Standard TTS voices, Amazon Polly also provides Neural Text-to-Speech (NTTS) voices, which enhance speech quality significantly through a novel machine learning technique. In addition, Polly's Neural TTS supports two distinct speaking styles: a Newscaster style designed for news narration and a Conversational style that is perfect for interactive communication scenarios such as telephony. This flexibility allows developers to tailor the auditory experience to fit their specific application needs.

Description

Piper is a rapidly operating, localized neural text-to-speech (TTS) system that is particularly optimized for devices like the Raspberry Pi 4, aiming to provide top-notch speech synthesis capabilities without the dependence on cloud infrastructure. It employs neural network models developed with VITS and subsequently exported to ONNX Runtime, which facilitates both efficient and natural-sounding speech production. Supporting a diverse array of languages, Piper includes English (both US and UK dialects), Spanish (from Spain and Mexico), French, German, and many others, with downloadable voice options available. Users have the flexibility to operate Piper through command-line interfaces or integrate it seamlessly into Python applications via the piper-tts package. The system boasts features such as real-time audio streaming, JSON input for batch processing, and compatibility with multi-speaker models, enhancing its versatility. Additionally, Piper makes use of espeak-ng for phoneme generation, transforming text into phonemes before generating speech. It has found applications in various projects, including Home Assistant, Rhasspy 3, and NVDA, among others, illustrating its adaptability across different platforms and use cases. With its emphasis on local processing, Piper appeals to users looking for privacy and efficiency in their speech synthesis solutions.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

1forAll.ai Yes 
AWS AI Services Yes 
AWS App Mesh Yes 
AWS Lambda Yes 
Amazon Web Services (AWS) Yes 
Bolna Yes 
BotCore Yes 
Fleece AI Yes 
JSON No 
Lont Yes 
Nekton.ai Yes 
NetSapiens Yes 
Peter AI Yes 
PubNub Yes 
Python No 
Smart IVR Yes 
Stackreaction Yes 
Unremot Yes 
Videostew Yes 
voximplant Yes 

Integrations

1forAll.ai No 
AWS AI Services No 
AWS App Mesh No 
AWS Lambda No 
Amazon Web Services (AWS) No 
Bolna No 
BotCore No 
Fleece AI No 
JSON Yes 
Lont No 
Nekton.ai No 
NetSapiens No 
Peter AI No 
PubNub No 
Python Yes 
Smart IVR No 
Stackreaction No 
Unremot No 
Videostew No 
voximplant No 

Pricing Details

No price information available.
Free Trial No 
Free Version Yes 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Amazon

Founded

1994

Country

United States

Website

aws.amazon.com/polly/

Vendor Details

Company Name

Rhasspy

Country

United States

Website

github.com/rhasspy/piper

Product Features

Text to Speech

API Yes 
Adjust Speaking Rate / Pitch Yes 
Audio Optimization Yes 
Custom Lexicons Yes 
Different Voice Choices Yes 
Multi-Language Support Yes 
Synchronize Speech Yes 

Product Features

Text to Speech

API No 
Adjust Speaking Rate / Pitch No 
Audio Optimization No 
Custom Lexicons No 
Different Voice Choices No 
Multi-Language Support No 
Synchronize Speech No 

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