Microsoft speech examples

Privacy policy. Thank you. Microsoft makes no warranties, express or implied, with respect to the information provided here. Transcribes speech into text. Speech can arrive via microphone, audio file, or other audio input stream.

This example uses the speech recognizer from a microphone and listens to events generated by the recognizer. See also: Get started with speech-to-text. Creates a new instance of SpeechRecognizer using EmbeddedSpeechConfig, configured to receive speech from the default microphone. Added in 1. Creates a new instance of SpeechRecognizer using EmbeddedSpeechConfig, configured to receive speech from an audio source specified in an AudioConfig object.

Creates a new instance of SpeechRecognizer configured to receive speech from the default microphone. Creates a new instance of SpeechRecognizer configured to receive speech from an audio source specified in an AudioConfig object.

Creates a new instance of SpeechRecognizer that determines the source language from a list of options. Creates a new instance of SpeechRecognizer configured to receive speech in a particular language. Creates a new instance of SpeechRecognizer configured to receive speech in a particular language from an audio source specified in an AudioConfig object. Note: Your code needs to ensure that the authorization token is valid. Before the authorization token expires, your code needs to refresh it by calling this setter with a new valid token.

Otherwise, the recognizer will produce errors during recognition. The collection of properties and their values defined for this SpeechRecognizer. Note: The property collection is only valid until the recognizer owning this Properties is disposed or finalized.

This method performs cleanup of resources. Synthesis Assembly: Microsoft. Speech in Microsoft. When you create a new SpeechSynthesizer object, it uses the default system voice. To configure the SpeechSynthesizer to use one of the installed speech synthesis text-to-speech voices, use the SelectVoice or SelectVoiceByHints method. To get information about which voices are installed, use the GetInstalledVoices method and the VoiceInfo class. The SpeechSynthesizer can use one or more lexicons to guide its pronunciation of words.

To add or remove lexicons, use the AddLexicon and RemoveLexicon methods. To pause and resume speech synthesis, use the Pause and Resume methods. If your subscription isn't in the West US region, change the value of FetchTokenUri to match the region for your subscription. Each access token is valid for 10 minutes. You can get a new token at any time, however, to minimize network traffic and latency, we recommend using the same token for nine minutes.

It must be in one of the formats in this table:. The following sample code shows how to build the pronunciation assessment parameters into the Pronunciation-Assessment header:. We strongly recommend streaming chunked uploading while posting the audio data, which can significantly reduce the latency. See sample code in different programming languages for how to enable streaming. The pronunciation assessment feature currently supports en-US language, which is available on all speech-to-text regions.

The support for en-GB and zh-CN languages is under preview. The sample below includes the hostname and required headers. It's important to note that the service also expects audio data, which is not included in this sample.

As mentioned earlier, chunking is recommended, however, not required. To enable pronunciation assessment, you can add below header. See Pronunciation assessment parameters for how to build this header.

Chunked transfer Transfer-Encoding: chunked can help reduce recognition latency. It allows the Speech service to begin processing the audio file while it is transmitted. This code sample shows how to send audio in chunks.

Only the first chunk should contain the audio file's header. If the audio consists only of profanity, and the profanity query parameter is set to remove , the service does not return a speech result. The detailed format includes additional forms of recognized results.

When using the detailed format, DisplayText is provided as Display for each result in the NBest list. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Note The pronunciation assessment feature currently supports en-US language, which is available on all speech-to-text regions. Note If the audio consists only of profanity, and the profanity query parameter is set to remove , the service does not return a speech result.

Submit and view feedback for This product This page. View all page feedback. In this article. Identifies the spoken language that is being recognized. See Supported languages. Specifies the result format. Accepted values are simple and detailed. Detailed responses include four different representations of display text.