![]() ![]() ![]() ![]() Audio transmission: Lets the client pass as much as 100 MB of audio to the service as a continuous stream of data chunks or as a one-shot delivery, passing all of the data at one time.Audio formats: Transcribes Free Lossless Audio Codec (FLAC), Linear 16-bit Pulse-Code Modulation (PCM), Waveform Audio File Format (WAV), Ogg format with the opus codec, mu-law (or u-law) audio data, or basic audio.Models: For most languages, supports both broadband (for audio that is sampled at a minimum rate of 16 KHz) and narrowband (for audio that is sampled at a minimum rate of 8 KHz) models.Languages: Supports Brazilian Portuguese, French, Japanese, Mandarin Chinese, Modern Standard Arabic, Spanish, UK English, and US English.Overview for developers introduces the three interfaces provided by the service: a WebSocket interface, an HTTP REST interface, and an asynchronous HTTP interface (beta). The service continuously returns and retroactively updates the transcription as more speech is heard. To transcribe the human voice accurately, the service leverages machine intelligence to combine information about grammar and language structure with knowledge of the composition of the audio signal. The IBM® Speech to Text service provides an Application Programming Interface (API) that lets you add speech transcription capabilities to your applications. You will integrating the service available on Bluemix into our favourite chatbot “ The WatBOT” using Watson Developer Android SDK with minimal lines of code. Speech-to-Text is available as a service on IBM Cloud i.e., Bluemix. It is not available for previous-generation models.This post is about injecting Watson Speech-to-Text into an Android native app. Then experiment with different values as necessary, adjusting the value by small increments.īeta: The parameter is beta functionality. To determine the most effective value for your scenario, start by setting the value of the parameter to a small increment, such as -0.1, -0.05, 0.05, or 0.1, and assess how the value impacts the transcription results. Positive values bias the service to favor hypotheses with longer strings of characters.Īs the value approaches -1.0 or 1.0, the impact of the parameter becomes more pronounced. Negative values bias the service to favor hypotheses with shorter strings of characters. The allowable range of values is -1.0 to 1.0. By default, the service is optimized to produce the best balance of strings of different lengths. Use caution when you set the weight: a higher value can improve the accuracy of phrases from the custom model's domain, but it can negatively affect performance on non-domain phrases.įor next-generation models, an indication of whether the service is biased to recognize shorter or longer strings of characters when developing transcription hypotheses. Assign a higher value if your audio makes frequent use of OOV words from the custom model. The default value yields the best performance in general. Unless a different customization weight was specified for the custom model when the model was trained, the default value is:Ġ.1 for next-generation English and Japanese modelsĪ customization weight that you specify overrides a weight that was specified when the custom model was trained. ![]() You can use the customization weight to tell the service how much weight to give to words from the custom language model compared to those from the base model for the current request. If you specify a customization ID when you open the connection, For more information, see Using the default model.Īllowable values: For Speech to Text for IBM Cloud Pak for Data, if you do not install the en-US_BroadbandModel, you must either specify a model with the request or specify a new default model for your installation of the service. The default model is en-US_BroadbandModel. See Using a model for speech recognition. The model to use for all speech recognition requests that are sent over the connection. For more information, see Authenticating to IBM Cloud Pak for Data. Pass an access token as you would with the Authorization header of an HTTP request. For more information, see Authenticating to IBM Cloud. You pass an IAM access token instead of passing an API key with the call. Pass an Identity and Access Management (IAM) access token to authenticate with the service. After a connection is established, it can remain active even after the token or its credentials are deleted. You do not need to refresh the access token for an active connection that lasts beyond the token's expiration time. You remain authenticated for as long as you keep the connection open. After you establish a connection, you can keep it alive indefinitely. You pass an access token only to establish an authenticated connection. You must establish the connection before the access token expires. Pass a valid access token to establish an authenticated connection with the service. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |