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Azure AI Speech

Azure AI Speech
Formerly Azure Cognitive Speech Services


What is Azure AI Speech?

The Azure AI Speech service provides a range of speech recognition and generation capabilities including speech transcription, text-to-speech and speech translation. It provides a range of speech recognition and generation capabilities including speech transcription, text-to-speech, speech translation, and speaker recognition.

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Entry-level set up fee?

  • No setup fee
For the latest information on pricing, visit…


  • Free Trial
  • Free/Freemium Version
  • Premium Consulting / Integration Services

Starting price (does not include set up fee)

  • $1 per month
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Product Details

What is Azure AI Speech?

The Speech service is the unification of speech-to-text, text-to-speech, and speech-translation into a single Azure subscription. It's speech capabilities enable applications, tools, and devices with the Speech CLI, Speech SDK, Speech Devices SDK, Speech Studio, or REST APIs.

Services include:

Speech to Text - Transcribe audio in more than 92 languages and variants. Gain customer insights with call center transcription, improve experiences with voice-enabled assistants, and capture key discussions in meetings.

Text to Speech - Create apps and services that speak conversationally, choosing from more than 215 voices, and 60 languages and variants. Create natural-sounding audio content, improve accessibility with read-aloud functionality, and create custom voice assistants.

Speech Translation - Translate audio from more than 30 languages and customize translations for organization's specific terms in a preferred programming language.

Speaker Recognition - Confirm a person's identity or recognize who's speaking in a meeting by adding speaker verification and identification to an app.

Custom Commands - Users can build a touchless, voice-first experience to improve safety and support back-to-work scenarios.

Custom Keywords - Custom keyword for IoT devices and voice-enabled assistants to set your brand apart—making it more personal, personable, and secure.

Azure AI Speech Technical Details

Deployment TypesSoftware as a Service (SaaS), Cloud, or Web-Based
Operating SystemsUnspecified
Mobile ApplicationNo

Frequently Asked Questions

The Azure AI Speech service provides a range of speech recognition and generation capabilities including speech transcription, text-to-speech and speech translation. It provides a range of speech recognition and generation capabilities including speech transcription, text-to-speech, speech translation, and speaker recognition.

Azure AI Speech starts at $1.

The most common users of Azure AI Speech are from Enterprises (1,001+ employees).
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Reviews and Ratings


Attribute Ratings


(1-7 of 7)
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Score 8 out of 10
Vetted Review
Verified User
There are two main uses for this product within our organisation as of yet, firstly: we use the accurate voice analysis with custom speech models in lectures to ensure our lectures are accessible to students with hearing-related accessibility issues, mostly through live text translation. Secondly, students are able to use this service and integrate its functionality into their application development during projects within their computing degrees.
  • It implements accurate voice analysis which can be improved with customised speech models
  • Affordable
  • Doesn't have to be run online/ can be run and stored locally
  • It can be quite difficult to set up
  • Speech recognition is occasionally inaccurate
  • It sometimes struggles with non-native English speakers' accents
This service is well suited for scenarios where you need to integrate text-to-speech and/or speech-to-text into applications. Within our organisation, it is primarily used by students for development purposes to enable said functionality but is also used to provide accessibility to students who have hearing-related issues. Its multi-language support is also beneficial for our international students who have English as a second language and are therefore able to rapidly translate any text or speech that they do not understand.
Johnson Martins | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Simplicity on the initial implementation of Azure Cognitive Speech Services is a big plus. The features' flexibility is very unique and customizing any function is simple. The software reaches with powerful tools with effective voice recognition ability and easy to manage record and other business data management through Cloud services, and even the engagement functions and also predictive data analytics from this solution are the best.
  • Supportive data integration functions.
  • Simple adaptation to all functionalities.
  • I really love the speed of data migration with this platform.
  • The initial training when new to this software is an essential process.
  • Tracking a huge amount of recording history.
  • Collective multiple reports and evaluation is a turf operation.
Ease of the functionalities and the best solution on customer services management and intelligent ability on multiple voice recognition with Azure Cognitive Speech Services are very helpful. Also, the reporting functions manipulation is great and excellent experience managing multiple contacts and the effective data analytics functions offers results in real-time data.
Score 8 out of 10
Vetted Review
Verified User
We use Azure Cognitive Speech Services to add speech to text, text to speech, and other AI-driven NLP-related speech services to our customised applications esp those involving chatbots for different business functions. The idea was to make use of speech services for mobile apps to make them hands-free and more accessible. The range of languages helped especially from an Indian context as only one competitor product could support as many Indian languages apart from a few European and middle eastern ones.
  • APIs offered are very robust.
  • Languages supported is far greater than most of its competitors.
  • Integration with our custom apps was easy.
  • Speech models that we created using neural voices were quite impressive.
  • Translation services worked really well.
  • Built in machine learning opens it to a lot more business use cases for the future.
  • At times different accents can be an issue but over time with more data, this can be further improved esp with reinforcement learning.
  • Price is on the higher side so ROI is slow to realise.
  • For community development, perhaps some of its source code could be open-sourced for further engagement and development as the overall community is small.
Excellent for voice enabled apps
built in security so speech data does not go outside
Flexible deployment on the cloud
Speech translation in real time scenarios
Using customised keywords to activate IoT devices
Score 7 out of 10
Vetted Review
Verified User
It is one of the most advanced software available. Through its advanced features, it recognizes even distorted noise efficiently. We can effectively convert speech-to-text and text-to-voice, which helps us communicate, make notes, and accurately discover requirements.
  • The free version provides up to five hours of audio and allows you to create one custom voice model per month.
  • Microsoft's language processing system justifies the cost of the software - it recognizes even faint and distorted sound in many cases.
  • It works with many languages and dialects which helps understand many speeches.
  • The software is not user-friendly- it has a complicated interface and requires a lot of training to set up.
  • The pricing is also costly - so for an individual user, not on a company plan, this is not affordable.
Azure Cognitive Speech Services can work with many languages and dialects, making it imperative for people working with multi-lingual clients. It also helps to catch speeches while conversing in meetings. The setup is complicated, which is why for a novice user - it is not an easy endeavor to use. The pricing is also high.
Score 10 out of 10
Vetted Review
Verified User
We have been using chatbots within our organisation for several years. Our users have been asking whether it is possible to have a simulated 'voice conversation' with a chatbot (i.e., the user speaks into their microphone, which is converted into text and passed to the chatbot, which returns a text response which is synthesised into speech). We have recently been using Azure Cognitive Speech Services to handle speech-to-text and text-to-speech elements of interacting with a chatbot.
  • Accurate speech-to-text
  • Realistic 'voice' when using text-to-speech
  • Customisable 'voices' for text-to-speech
  • Occasionally, words in text-to-speech are not pronounced correctly
  • Sometimes the speech recognition is inaccurate
  • We have many non-native English speakers in our organisation, and the speech recognition occasionally struggles to understand certain words spoken in different accents
It is well suited for scenarios where there is a requirement to integrate speech-to-text and text-to-speech into user interaction, for example, with chatbots used internally at a large enterprise. We have also investigated the use of Azure Cognitive Speech Services for live captions during meetings and presentations and the additional translation of these captions from English into German.
Score 8 out of 10
Vetted Review
Verified User
We used it for a POC where we had to convert speech recordings from customers calling at our helpline to text. These text scripts were to be used for training and doing an analysis on customer sentiments. Azure cognitive speech services were used to convert speech to text. The scope of the use case was extended to analyze all customer conversations calling for inquiries and support.
  • Deployment is easy since its available on the cloud.
  • It is directly as a service and no expertise in AI or ML is needed by the development team.
  • Security of data since Azure promises that it does not store the data of the customers that is used by the service.
  • More support for India regional languages and the ability to interpret Indian dialect.
  • More detailed documentation with more coded examples to be available.
Azure Cognitive Speech Services is well suited for scenarios where you need real-time or batch-based data conversion - either from speech to text or text to speech, It can be used to interpret and document customer conversations or employee conversations or to make specific training programs. It can also be used to make and train avatars to read from a text document. It can also be made to use for cases where it can read for employees with special needs.
Score 10 out of 10
Vetted Review
Verified User
We mainly used Azure Cognitive Speech Services for text to speech and speech to text use cases to take note of the things we say to our client. As a technical support engineer, we say a lot of pointers and reminders to our clients and we have to make sure that we also know what we previously had told them so this is very important for us.
  • Easily leverage the available APIs even with the free version.
  • Accurate speech to text.
  • Local languages are supported.
  • Pricing is costly, it seems MS is forcing you to opt with the premium version since you can only use worth five hours of free translations.
Since this is made by Microsoft, integration wouldn't be a huge obstacle with your O365 applications. You just have to check if your apps are available for integration, use the available APIs then you are good to go.
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