SoundHound
SoundHound offers voice AI interfaces for various platforms including hardware devices, services, vehicles, and mobile apps. Their conversa...
Last verified:
What is SoundHound?
SoundHound AI is an independent voice AI platform that delivers advanced conversational intelligence experiences for businesses across industries. The platform connects people to brands through customized conversational experiences that voice-enable products, services, and apps while giving companies access to their valuable data and analytics for greater control and brand ownership of the customer experience. SoundHound's technology is built on proprietary Speech-to-Meaning® and Deep Meaning Understanding® technologies that enable voice assistants to respond with greater accuracy and understand complex conversations in real-time.
Key features include Automatic Speech Recognition (ASR) that converts speech to data with higher sentence accuracy, Natural Language Understanding (NLU) for intelligent conversations between humans and voice assistants, Text-to-Speech (TTS) with custom voice options for sonic branding, hundreds of content domains that turn data into conversations, data analytics for monitoring usage and improving clients, developer team collaboration tools, debugging and testing capabilities, and support for 25 languages with plans to expand to 100+. The platform offers simple HTTP and Websocket APIs that take text queries or audio and return actionable JSON, plus extensive SDK libraries for Android, iOS, JavaScript, React Native, Java, Go, C++, C#, and Python.
SoundHound AI is designed for businesses across diverse industries including automotive (Hyundai, Mercedes-Benz, Stellantis), restaurants (Casey's, Synq3 with 10,000+ locations), retail, healthcare, banking, customer service centers, IT service management, product developers (app, car, TV creators), and enterprise brands seeking to voice-enable their products. The platform serves developers building conversational assistants through Houndify, enterprise companies needing AI agents for customer service/sales/operations, and individual users through the SoundHound Music app for music discovery and the SoundHound Chat AI app as a personal assistant.
The company automates over 10 billion conversations annually, has 400+ patents, and serves hundreds of leading brands globally with 9 offices in key markets and teams in 16 countries. SoundHound AI entered public markets in 2022 as Nasdaq-listed SOUN and acquired Amelia in 2024 to expand conversational AI reach across new verticals.
SoundHound pricing
Pricing model: Free
SoundHound offers a Free Houndify Account for developers that enables access to all APIs, voice and text endpoints, documentation, and a wide range of SDKs. The free developer account allows integration within minutes and products instantly understand various queries and commands. For paid pricing, SoundHound provides competitive pricing options based on usage for independent developers or large organizations through the SoundHound Voice AI Platform. Specific pricing details require creating a free developer account to see pricing details or talking to an expert for deployment identification and ROI assessment.
SoundHound pros
- Independent voice AI platform not intermediated by Big Tech
- Proprietary Speech-to-Meaning® technology for accuracy
- Deep Meaning Understanding® for complex conversations
- Own your data and strengthen customer relationships
- Retain brand independence and ownership
- Supports 25 languages with expansion to 100+ planned
- 400+ patents surpassing Big Tech in speed and accuracy
- Automates over 10 billion conversations annually
- Hundreds of pre-built content domains available
- Custom wake word delivery in weeks not months
- Custom TTS voices for sonic branding
- Build once deploy anywhere platform-agnostic design
- Extensive SDK support for 9 major platforms
- Simple HTTP and Websocket APIs with actionable JSON
- Built-in data analytics preserving user privacy
- Developer team collaboration with permission controls
- Debugging and testing tools for rapid development
- 20+ years of business expertise in served industries
- Custom domains created for unique user needs
- Collective AI® architecture always learning
SoundHound cons
- Pricing details not publicly disclosed on website
- Free developer account requires sign-up to see pricing
- Custom wake words require company data collection process
- Custom domains need developer assistance to create
- Language expansion to 100+ still in progress
- Primarily enterprise-focused not consumer DIY
- Requires internet connection for API access
- Custom TTS voices may need additional development
Frequently asked questions about SoundHound
What is SoundHound's voice AI platform?
SoundHound's independent voice AI platform allows brands to develop conversational voice assistants. Built on proprietary Speech-to-Meaning® and Deep Meaning Understanding® technologies, it creates a conversational voice assistant that responds with greater accuracy and understands complex conversations in real-time. The platform includes APIs for text and voice queries, custom commands support, extensive content domain libraries, inclusive SDK platforms, collaboration capabilities, diagnostic tools, built-in analytics, and hundreds of content domains that turn data into conversations.
What is Speech-to-Meaning® technology?
Speech-to-Meaning® is SoundHound's proprietary breakthrough technology introduced in 2015 that forms the foundation of their voice AI platform. It enables voice assistants to understand what users are saying and convert speech to data with embedded meaning and richer context for recognizing words, delivering higher sentence accuracy than alternative ASR technologies.
What is Deep Meaning Understanding®?
Deep Meaning Understanding® is SoundHound's proprietary technology that works alongside Speech-to-Meaning® to create conversational voice assistants. It enables voice assistants to engage in conversations the way humans do by understanding complex and natural conversations in real-time, making easy, intuitive, and intelligent conversations between humans and voice assistants possible.
How many languages does SoundHound support?
The SoundHound Voice AI platform currently supports 25 of the world's most popular languages. This is part of an expansion plan to include more than 100 languages and variations for SoundHound users, reflecting a commitment to providing comprehensive voice AI solutions to brands and their users everywhere.
What SDKs are supported?
SoundHound's extensive list of supported SDKs is continually growing and currently includes Android, Go, iOS, C++, JavaScript, C#, React Native, Python, and Java. Developers can choose from this extensive list of platforms to develop their natural language voice solution.
What are content domains?
Content domains are programs that allow the SoundHound server to respond to queries on a certain topic. For example, the Weather domain allows Houndify to understand weather queries like 'What's the temperature in San Francisco?' and then ask follow-up questions like 'How about in San Jose?' Developers can choose from a library of over a hundred content domains or receive help creating custom domains to meet unique user needs.
What is a custom wake word?
Implementing a custom wake word helps brands deepen user engagement, increase brand affinity, and inspire loyalty when users ask for them by name every time they interact with their custom voice assistant. SoundHound's comprehensive data collection and labeling process allows them to deliver a custom, branded wake word in weeks, not months. Custom wake words differentiate voice assistants from other offerings on the market.
What is Collective AI®?
Collective AI® is the actualization of SoundHound's mission to deliver a powerful architecture that encourages contribution and collaboration among developers. The platform is always learning, crowdsourced to domain experts, and larger than the sum of its parts—ensuring that clients' voice solutions continue to grow smarter in the future without needing to access or fully understand existing AI domains.
How do I get started with SoundHound?
Developers can get up and running within minutes by signing up for a free Houndify developer account. SoundHound's Voice AI is platform-agnostic, so you can build it once and deploy it everywhere. The free account enables access to all APIs, voice and text endpoints, documentation, and SDKs. For fully-customized and branded voice assistants, you can talk to an expert to bring your conversational AI strategy to life.
What industries does SoundHound serve?
SoundHound partners with companies across a wide range of industries including automotive (Hyundai, Mercedes-Benz, Stellantis, Honda, PSA Auto), restaurants (Casey's, Synq3 with 10,000+ live locations), retail (VIZIO), telecommunications (Deutsche Telecom), entertainment (Pandora, Snap Inc.), finance (Mastercard for drive-thru experiences), healthcare, banking, customer service contact centers, IT service management, and enterprise brands globally. The company has 9 offices in key markets and teams in 16 countries.