Cognitive Services pricing—Speech Services
Use intelligence APIs to enable vision, language, and search capabilities.
- No upfront cost
- No termination fees
- Pay only for what you use
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Important—The price in R$ is merely a reference; this is an international transaction and the final price is subject to exchange rates and the inclusion of IOF taxes. An eNF will not be issued.
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Speech Services is not available in the Australia Central region. Please select another region.
Speech Services is not available in the Australia Central 2 region. Please select another region.
Speech Services is not available in the Australia Southeast region. Please select another region.
Speech Services is not available in the Canada East region. Please select another region.
Speech Services is not available in the France South region. Please select another region.
Speech Services is not available in the Germany Central region. Please select another region.
Speech Services is not available in the Germany North region. Please select another region.
Speech Services is not available in the Germany Northeast region. Please select another region.
Speech Services is not available in the Germany West Central region. Please select another region.
Speech Services is not available in the Korea South region. Please select another region.
Speech Services is not available in the Norway East region. Please select another region.
Speech Services is not available in the Norway West region. Please select another region.
Speech Services is not available in the South Africa North region. Please select another region.
Speech Services is not available in the South Africa West region. Please select another region.
Speech Services is not available in the South India region. Please select another region.
Speech Services is not available in the Switzerland North region. Please select another region.
Speech Services is not available in the Switzerland West region. Please select another region.
Speech Services is not available in the UAE Central region. Please select another region.
Speech Services is not available in the UAE North region. Please select another region.
Speech Services is not available in the UK West region. Please select another region.
Speech Services is not available in the West Central US region. Please select another region.
Speech Services is not available in the West India region. Please select another region.
The unified Speech services provide a wide range of speech recognition and generation capabilities including speech transcription, text-to-speech and speech translation.
Pricing Details
Speech container is in public preview.
| Instance | Category | Features | Price |
|---|---|---|---|
| Free - Web/Container 1 concurrent request1 |
Speech to Text | Standard | 5 audio hours free per month |
| Custom |
5 audio hours free per month Endpoint hosting: 1 model free per month 2 |
||
| Conversation Transcription Multichannel Audio PREVIEW 3 | 5 audio hours free per month | ||
| Text to Speech | Standard | 5M characters free per month | |
| Neural | 0.5M characters free per month | ||
| Custom |
5M characters free per month Endpoint hosting: 1 model free per month |
||
| Speech Translation | Standard | 5 audio hours free per month | |
| Standard - Web/Container 20 concurrent request 1 |
Speech to Text | Standard | $- per audio hour |
| Custom |
$- per audio hour Endpoint hosting: $- per model per hour |
||
| Conversation Transcription Multichannel Audio PREVIEW 3 | $- per audio hour 4 | ||
| Text to Speech | Standard | $- per 1M characters | |
| Neural | $- per 1M characters 5 | ||
| Custom |
$- per 1M characters Endpoint hosting: $- per model per month |
||
| Custom Neural PREVIEW 6 |
Real-time synthesis: $- per 1M characters Voice building: contact us Endpoint hosting: $- per model per hour Long audio creation: $- per 1M characters |
||
| Speech Translation | Standard | $- per audio hour |
Support & SLA
- Free billing and subscription management support are included.
- We guarantee that Cognitive Services running in the standard tier will be available at least 99.9 percent of the time. No SLA is provided for the free trial. Read the SLA.
FAQ
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- For Speech Translation, Speech to Text, and Speech to Text with Custom Speech Model: usage is billed in one-second increments
- For Text to Speech and Text To Speech with Custom Voice Font: usage is billed per character
- For Custom Speech Model Hosting: usage is billed hourly; For Custom Voice Font Hosting: usage is billed daily.
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The Speech service enables users to adapt baseline models based on their own acoustic and language data, leading to custom speech models that can be used against both Speech to Text and Speech Translation.
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The language model is a probability distribution over sequences of words. The language model helps the system decide among sequences of words that sound similar, based on the likelihood of the word sequences themselves. For example, “recognize speech” and “wreck a nice beach” sound alike but the first hypothesis is far more likely to occur, and therefore will be assigned a higher score by the language model. If you expect voice queries to your application to contain particular vocabulary items, such as product names or jargon that rarely occur in typical speech, it is likely that you can obtain improved performance by customizing the language model. For example, if you were building an app to search MSDN by voice, it’s likely that terms like “object-oriented” or “namespace” or “dot net” will appear more frequently than in typical voice applications. Customizing the language model will enable the system to learn this.
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The acoustic model is a classifier that labels short fragments of audio into one of several phonemes, or sound units, in each language. These phonemes can then be stitched together to form words. For example, the word “speech” is comprised of four phonemes “s p iy ch”. These classifications are made on the order of 100 times per second. Customizing the acoustic model can enable the system to learn to do a better job recognizing speech in atypical environments. For example, if you have an app designed to be used by workers in a warehouse or factory, a customized acoustic model can more accurately recognize speech in the presence of the noises found in these environments.
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Microsoft Speech Services provide 70+ default voices (a.k.a voice fonts) in 40+ languages to help you convert your text into audio. With the rise of the virtual assistant and various speech-enabled applications, however, many companies would like to have a unique voice that represents their business and is carefully designed for their own brand identity. For example, if you are developing a chat bot for your customer care service, you can associate it with a unique brand voice of your company to develop customer attachment. Likewise, an in-car navigation software developer can enable Text-to-Speech in different custom voices to enrich user experience.
Through Voice Studio, the custom voice building portal, that is easy. Using your own audio data (recorded human voice with their associated scripts), you can generate a custom voice font which will then be deployed to Microsoft Text-to-Speech service and can be easily plugged in your applications with an API endpoint for your own use.