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Twilio Text-to-Speech: The Complete Guide for Streamlined Communications

Cliff Weitzman

Cliff Weitzman

CEO e fundador da Speechify

apple logoPrêmio de Design da Apple 2025
50M+ usuários

Twilio Text-to-Speech (TTS) is a crucial element of the Twilio API, a cloud communications platform that provides developers with the tools to build and integrate phone call, SMS, and VoIP functionality into their applications. Twilio's TTS allows applications to deliver audio content by converting text messages into speech in real-time, significantly improving customer experiences.

What is Twilio Text to Speech?

Twilio Text to Speech is a service within the Twilio API that converts textual data into audible speech. Leveraging advanced speech synthesis technology such as Amazon Polly Voice and Microsoft's Speech Synthesis Markup Language (SSML), it's utilized to enhance voice applications and the Interactive Voice Response (IVR) system. The SSML, a powerful XML-based language, gives developers granular control over how the TTS reads the text, allowing for changes in pitch, speed, volume, pronunciation, and more.

Function of Twilio Text to Speech

Twilio TTS is an essential tool in modern telephony and communication platform, with numerous use cases. It can be applied to voice calls to relay SMS or text messages over the phone, build automated customer service hotlines, create personalized voice response systems, or even develop real-time transcription services.

Developers interact with the Twilio TTS via the TwiML, a set of instructions written in XML, or through SDKs available for languages such as Python and PHP. These allow the creation of audio files for later use or streaming in real-time. Furthermore, developers can access tutorials and docs on the official Twilio and GitHub to help build communication solutions for platforms like Android.

Longest Text Message Read by Twilio

Twilio's programmable voice can read text messages of up to 4,000 characters long in one TwiML <Say> verb. Anything longer would require splitting the message and leveraging the TwiML's queuing system.

Twilio Account Pricing

The cost of a Twilio account depends on usage and the specific services employed, such as voice calls, SMS, and Twilio TTS. While the pricing is usage-based, Twilio does offer a free trial for developers to explore the functionalities of their API.

Pricing details can be accessed via the Twilio Console, their user-friendly online portal, which also provides tools for tracking usage, managing phone numbers, and configuring your Twilio voice applications. To view the detailed pricing information for the Twilio Text-to-Speech and other services, visit the official Twilio website.

In summary, Twilio's Text-to-Speech API offers businesses a cost-effective, flexible solution for transforming text data into speech, enabling the creation of automated phone systems, voice applications, and more to enrich customer experiences and streamline communication workflows.

Speechify text to speech

Speechify text to speech is the best option for those who want to convert text to audio. With the best high quality text to speech voices and support for multiple languages in either your browser or as an app for all devices, it is the best option on the market. See why millions of users have downloaded Speechify TTS. Try it yourself, for free!

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Cliff Weitzman

Cliff Weitzman

CEO e fundador da Speechify

Cliff Weitzman é um defensor da causa da dislexia e o CEO e fundador da Speechify, o aplicativo número 1 de conversão de texto em fala do mundo, com mais de 100.000 avaliações 5 estrelas e líder de downloads na App Store na categoria Notícias & Revistas. Em 2017, Weitzman foi incluído na lista Forbes 30 under 30 por seu trabalho para tornar a internet mais acessível a pessoas com dificuldades de aprendizagem. Cliff Weitzman já foi destaque em veículos como EdSurge, Inc., PC Mag, Entrepreneur, Mashable, entre outros importantes meios de comunicação.

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Sobre o Speechify

Leitor de texto para fala nº 1

Speechify é a principal plataforma mundial de texto para fala, utilizada por mais de 50 milhões de usuários e avaliada com mais de 500.000 avaliações cinco estrelas em seus apps de texto para fala para iOS, Android, extensão para Chrome, aplicativo web e aplicativo para desktop Mac. Em 2025, a Apple premiou o Speechify com o prestigioso Prêmio de Design da Apple na WWDC, chamando-o de “um recurso fundamental que ajuda as pessoas a viverem melhor”. O Speechify oferece mais de 1.000 vozes naturais em mais de 60 idiomas e é utilizado em quase 200 países. Entre as vozes de celebridades estão Snoop Dogg, Mr. Beast e Gwyneth Paltrow. Para criadores e empresas, o Speechify Studio oferece ferramentas avançadas, incluindo gerador de voz com IA, clonagem de voz com IA, dublagem com IA e seu alterador de voz com IA. O Speechify também potencializa produtos de ponta com sua API de texto para fala de alta qualidade e excelente custo-benefício. Em destaque no The Wall Street Journal, na CNBC, na Forbes, no TechCrunch e em outros grandes veículos de notícias, o Speechify é o maior provedor de texto para fala do mundo. Acesse speechify.com/news, speechify.com/blog e speechify.com/press para saber mais.