Best Speech Recognition Software

AI Powered Text to Voice Generation. Play.ht offers uncanny, high-fidelity AI Voices for any project where you need human-sounding voice overs and performances. Hollywood studios, auto manufacturers, and other large enterprises use Play.ht to create realistic and engaging voiceovers quickly, without the hassle of scheduling and hiring voice talent. Our voices sound natural, expressive, and engaging, just like human voice talent. Play.ht offers API access as well as an online rich-text editor that allows you to generate entire performances with multiple speakers, edit their pacing, and generate unique versions of each paragraph - all within seconds. Join other companies looking to scale up and simplify their voice work by scheduling a live demo today.

Build voice-enabled apps confidently and quickly with the Speech SDK. Transcribe speech to text with high accuracy, produce natural-sounding text-to-speech voices, translate spoken audio, and use speaker recognition during conversations. Create custom models tailored to your app with Speech studio. Get state-of-the-art speech to text, lifelike text to speech, and award-winning speaker recognition. Your data stays yours, your speech input is not logged during processing. Create custom voices, add specific words to your base vocabulary, or build your own models. Run Speech anywhere, in the cloud or at the edge in containers. Quickly and accurately transcribe audio in more than 92 languages and variants. Gain customer insights with call center transcription, improve experiences with voice-enabled assistants, capture key discussions in meetings and more. Use text to speech to create apps and services that speak conversationally, choosing from more than 215 voices, and 60 languages.

​Amazon Nova Sonic is a state-of-the-art speech-to-speech model that delivers real-time, human-like voice conversations with industry-leading price performance. It unifies speech understanding and generation into a single model, enabling developers to create natural, expressive conversational AI experiences with low latency. Nova Sonic adapts its responses based on the prosody of input speech, such as pace and timbre, resulting in more natural dialogue. It supports function calling and agentic workflows to interact with external services and APIs, including knowledge grounding with enterprise data using Retrieval-Augmented Generation (RAG). It provides robust speech understanding for American and British English across various speaking styles and acoustic conditions, with additional languages coming soon. Nova Sonic handles user interruptions gracefully without dropping conversational context and is robust to background noise.