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Recognizer 语音识别

通过语音采集设备将语音转化为文本

点击开始识别后对录入语音进行识别

Demo

使用说明:

点击 开始识别 后,脚本运行可能会提示要求录音权限,授权后开始讲话,5秒后(可配置)右侧文本框显示语音识别结果,请勿讲完话后直接点击 结束识别

@page "/recognizers"
@namespace BootstrapBlazor.Shared.Samples
@inherits BootstrapComponentBase

<h3>Recognizer 语音识别</h3>

<h4>通过语音采集设备将语音转化为文本</h4>

<DemoBlock Title="普通用法" Introduction="点击开始识别后对录入语音进行识别" Name="Normal">
    <p><b>使用说明:</b></p>
    <p>点击 <b>开始识别</b> 后,脚本运行可能会提示要求录音权限,授权后开始讲话,5秒后(可配置)右侧文本框显示语音识别结果,请勿讲完话后直接点击 <b>结束识别</b></p>
    <div class="row">
        <div class="col-12 col-sm-6 text-center">
            <SpeechWave Show="Start" TotalTime="5000" OnTimeout="OnTimeout" class="my-3" />
            <Button Text="@ButtonText" Icon="fa fa-fw fa-microphone" OnClick="OnStart" />
        </div>
        <div class="col-12 col-sm-6">
            <Textarea Value="@Result" rows="6" />
        </div>
    </div>
</DemoBlock>
// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
// Website: https://www.blazor.zone or https://argozhang.github.io/

using BootstrapBlazor.Components;
using Microsoft.AspNetCore.Components;

namespace BootstrapBlazor.Shared.Samples;

/// <summary>
/// 语音识别示例
/// </summary>
public partial class Recognizers
{
    [Inject]
    [NotNull]
    private RecognizerService? RecognizerService { get; set; }

    private bool Start { get; set; }

    private string? Result { get; set; }

    private string ButtonText { get; set; } = "开始识别";

    private async Task OnStart()
    {
        if (ButtonText == "开始识别")
        {
            await RecognizerService.RecognizeOnceAsync(Recognize, 5000);
        }
        else
        {
            Start = false;
            ButtonText = "开始识别";
            StateHasChanged();
            await RecognizerService.CloseAsync(Recognize);
        }
    }

    private async Task OnTimeout()
    {
        await RecognizerService.CloseAsync(Recognize);
    }

    private Task Recognize(RecognizerStatus status, string? result)
    {
        if (status == RecognizerStatus.Start)
        {
            Start = true;
            ButtonText = "结束识别";
        }
        else if (status == RecognizerStatus.Finished)
        {
            Result = result;
            Start = false;
            ButtonText = "开始识别";
        }
        else
        {
            Result = "";
            Start = false;
            ButtonText = "开始识别";
        }
        StateHasChanged();
        return Task.CompletedTask;
    }
}

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