基于阿里云微信小程序语音识别

页面效果

其中采用阿里云语音识别：阿里云一句话语音识别

语音识别页面

<template>
    <view>
        <view class="chat_list">
            <view v-for="v in chatList" :class="v.type == 'right' ? 'type_right' : 'type_left'">
                <chat :text="v.result" :type="v.type"></chat>
            </view>
        </view>
        <view :class="longPress == '1' ? 'record-layer' : 'record-layer1'">
            <view :class="longPress == '1' ? 'record-box' : 'record-box1'">
                <view class="record-btn-layer flex_row">
                    <button v-show="longPress == '1'" class="record-btn-cir" @click="isKeyWord = !isKeyWord">
                        <image v-if="!isKeyWord" :src="keyword" style=" margin-top: -8rpx;" />
                        <image v-else :src="record" style=" margin-top: -8rpx;" />
                    </button>
                    <button v-show="!isKeyWord" class="record-btn"
                        :class="longPress == '1' ? 'record-btn-1' : 'record-btn-2'"
                        :style="VoiceTitle != '松开手指,取消发送' && longPress != '1' ? 'background-image: linear-gradient(to top, #cfd9df 0%, #e2ebf0 100%);' : 'background-color: rgba(0, 0, 0, .5);color:white'"
                        @longpress="longpressBtn" @touchend="touchendBtn()" @touchmove="handleTouchMove">
                        <image :src="record" />
                        <text>{{ VoiceText }}</text>
                    </button>
                    <u--input v-if="longPress == '1' && isKeyWord" shape="circle" customStyle="u_input" clearable
                        placeholder="请输入内容..." @confirm="confirmMsg"></u--input>
                </view>
                <!-- 语音音阶动画 -->
                <view :class="VoiceTitle != '松开手指,取消发送' ? 'prompt-layer prompt-layer-1' : 'prompt-layer1 prompt-layer-1'"
                    v-if="longPress == '2'">
                    <view class="prompt-loader">
                        <view class="em" v-for="(item, index) in 15" :key="index"></view>
                    </view>
                    <text class="span">{{ VoiceTitle }}</text>
                </view>
            </view>
        </view>
    </view>
</template>

<script>
const recorderManager = uni.getRecorderManager()
const SpeechRecognition = require("../../utils/sr")
const getToken = require("../../utils/token").getToken
import keyword from '../public/images/keyword.png'
import record from '../public/images/record.png'
import chat from './com/chat.vue'
export default {
    components: { chat },
    data() {
        return {
            record,
            keyword,
            longPress: '1', // 1显示 按住 说话 2显示 说话中
            delShow: false, // 删除提示框显示隐藏
            time: 0, //录音时长
            duration: 60000, //录音最大值ms 60000/1分钟
            tempFilePath: '', //音频路径
            startPoint: {}, //记录长按录音开始点信息,用于后面计算滑动距离。
            sendLock: true, //发送锁，当为true时上锁，false时解锁发送
            VoiceTitle: '松手结束录音',
            VoiceText: '按住 说话',
            token: "",
            srStart: false,
            srResult: {},
            sr: null,
            isKeyWord: false,
            chatList: []
        }
    },
    async onLoad() {
        recorderManager.onFrameRecorded((res) => {
            if (this.sr && this.srStart) {
                if (res.frameBuffer) {
                    console.log("send " + res.frameBuffer.byteLength)
                    this.sr.sendAudio(res.frameBuffer)
                }
            }
        })
        recorderManager.onStop(async (res) => {
            if (this.sendLock) {
                //上锁不发送
            } else {//解锁发送，发送网络请求
                if (res.duration < 1000) {
                    wx.showToast({
                        title: "录音时间太短",
                        icon: "none",
                        duration: 1000
                    });
                    await this.sr.close()
                    this.srStart = false
                }
                else {
                    // this.tempFilePath = res.tempFilePath
                    await this.sr.close()
                    this.srStart = false
                    this.srResult.payload.type = 'right'
                    this.chatList.push(this.srResult.payload)
                    console.log('this.chatList.', this.chatList);
                }
            }
        })
        try {
            let token = await getToken('your akid','your akkey')
            this.token = token
        } catch (e) {
            console.log("error on get token:", JSON.stringify(e))
        }
    },
    onUnload: function () {
        this.srStart = false
        recorderManager.stop()
        if (this.sr) {
            this.sr.shutdown()
        }
    },
    methods: {
        initSt() {
            const sr = new SpeechRecognition({
                url: 'wss://nls-gateway-cn-shanghai.aliyuncs.com/ws/v1',
                appkey: 'your app key',
                token: this.token
            })
            console.warn("sr 初始化成功")
            sr.on("started", (msg) => {
                console.log("Client recv started", JSON.parse(msg))
            })

            sr.on("changed", (msg) => {
                console.log("Client recv changed:", JSON.parse(msg))
                this.srResult = JSON.parse(msg)
            })

            sr.on("completed", (msg) => {
                console.log("Client recv completed:", JSON.parse(msg))
                this.srResult = JSON.parse(msg)
            })

            sr.on("failed", (msg) => {
                console.log("Client recv failed:", JSON.parse(msg))
            })
            sr.on("closed", () => {
                console.error("sr 连接已关闭")
            })
            this.sr = sr
        },
        // 长按录音事件
        async longpressBtn(e) {
            recorderManager.start({
                duration: 600000,
                numberOfChannels: 1,
                sampleRate: 16000,
                format: "PCM",
                frameSize: 4
            })
            this.initSt()
            this.startPoint = e.touches[0];//记录长按时开始点信息，后面用于计算上划取消时手指滑动的距离。
            this.longPress = '2';
            this.VoiceText = '说话中...';
            if (!this.sr || this.srStart) {
                return
            }
            try {
                await this.sr.start(this.sr.defaultStartParams())
                this.srStart = true
            } catch (e) {
                console.log("start failed:" + e)
                return
            }

            // 监听音频开始事件
            this.sendLock = false;//长按时是不上锁的。
        },
        // 长按松开录音事件
        touchendBtn() {
            this.longPress = '1';
            this.VoiceText = '按住 说话';
            this.VoiceTitle = '松手结束录音'
            recorderManager.stop();
        },
        // 删除录音
        handleTouchMove(e) {
            //touchmove时触发
            var moveLenght = e.touches[e.touches.length - 1].clientY - this.startPoint.clientY; //移动距离
            if (Math.abs(moveLenght) > 70) {
                this.VoiceTitle = "松开手指,取消发送";
                this.VoiceText = '松开手指,取消发送';
                this.delBtn()
                this.sendLock = true;//触发了上滑取消发送，上锁
            } else {
                this.VoiceTitle = "松手结束录音";
                this.VoiceText = '松手结束录音';
                this.sendLock = false;//上划距离不足，依然可以发送，不上锁
            }
        },
        delBtn() {
            this.delShow = false;
            this.time = 0
            // this.tempFilePath = '';
            // this.VoiceTitle = '松手结束录音'
        },
    }
}
</script>

<style lang="scss">
/* 语音录制开始--------------------------------------------------------------------- */
.record-layer {
    width: 91vw;
    box-sizing: border-box;
    height: 15vw;
    position: fixed;
    margin-left: 4vw;
    z-index: 10;
    bottom: 2vh;
}

.record-layer1 {
    width: 100vw;
    box-sizing: border-box;
    height: 100vh;
    position: fixed;
    background-color: rgba(0, 0, 0, .6);
    z-index: 10;
    bottom: 0vh;
}

.record-box {
    width: 100%;
    position: relative;
}

.record-box1 {
    width: 100%;
    position: relative;
    bottom: -83vh;
    height: 17vh;
}

.record-btn-layer {
    // width: 100%;
}

.record-btn-layer button::after {
    border: none;
    transition: all 0.1s;
}

.record-btn-layer button {
    font-size: 14px;
    line-height: 40px;
    width: 100%;
    height: 40px;
    text-align: center;
    transition: all 0.1s;
}

.record-btn-layer button image {
    width: 16px;
    height: 16px;
    margin-right: 4px;
    vertical-align: middle;
    transition: all 0.3s;
}


.record-btn-layer .record-btn-2 {
    border-radius: 168rpx 168rpx 0 0;
    height: 17vh;
    line-height: 17vh;
    transition: all 0.3s;
}

/* 提示小弹窗 */
.prompt-layer {
    border-radius: 15px;
    background: #95EB6C;
    padding: 8px 16px;
    box-sizing: border-box;
    position: absolute;
    left: 50%;
    height: 11vh;
    transform: translateX(-50%);
    transition: all 0.3s;
}

.prompt-layer::after {
    content: '';
    display: block;
    border: 12px solid rgba(0, 0, 0, 0);
    border-radius: 10rpx;
    border-top-color: #95EB6C;
    position: absolute;
    bottom: -46rpx;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s;
}

//取消动画
.prompt-layer1 {
    border-radius: 15px;
    background: #FB5353;
    padding: 8px 16px;
    box-sizing: border-box;
    position: absolute;
    left: 50%;
    height: 11vh;
    transform: translateX(-50%);
    transition: all 0.3s;
}

.prompt-layer1::after {
    content: '';
    display: block;
    border: 12px solid rgba(0, 0, 0, 0);
    border-radius: 10rpx;
    border-top-color: #FB5353;
    position: absolute;
    bottom: -46rpx;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s;
}

.prompt-layer-1 {
    font-size: 12px;
    width: 150px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    top: -400rpx;
}

.prompt-layer-1 .p {
    color: #000000;
}

.prompt-layer-1 .span {
    color: rgba(0, 0, 0, .6);
}

.prompt-loader .em {}

/* 语音音阶------------- */
.prompt-loader {
    width: 96px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.prompt-loader .em {
    display: block;
    background: #333333;
    width: 1px;
    height: 10%;
    margin-right: 2.5px;
    float: left;
}

.prompt-loader .em:last-child {
    margin-right: 0px;
}

.prompt-loader .em:nth-child(1) {
    animation: load 2.5s 1.4s infinite linear;
}

.prompt-loader .em:nth-child(2) {
    animation: load 2.5s 1.2s infinite linear;
}

.prompt-loader .em:nth-child(3) {
    animation: load 2.5s 1s infinite linear;
}

.prompt-loader .em:nth-child(4) {
    animation: load 2.5s 0.8s infinite linear;
}

.prompt-loader .em:nth-child(5) {
    animation: load 2.5s 0.6s infinite linear;
}

.prompt-loader .em:nth-child(6) {
    animation: load 2.5s 0.4s infinite linear;
}

.prompt-loader .em:nth-child(7) {
    animation: load 2.5s 0.2s infinite linear;
}

.prompt-loader .em:nth-child(8) {
    animation: load 2.5s 0s infinite linear;
}

.prompt-loader .em:nth-child(9) {
    animation: load 2.5s 0.2s infinite linear;
}

.prompt-loader .em:nth-child(10) {
    animation: load 2.5s 0.4s infinite linear;
}

.prompt-loader .em:nth-child(11) {
    animation: load 2.5s 0.6s infinite linear;
}

.prompt-loader .em:nth-child(12) {
    animation: load 2.5s 0.8s infinite linear;
}

.prompt-loader .em:nth-child(13) {
    animation: load 2.5s 1s infinite linear;
}

.prompt-loader .em:nth-child(14) {
    animation: load 2.5s 1.2s infinite linear;
}

.prompt-loader .em:nth-child(15) {
    animation: load 2.5s 1.4s infinite linear;
}

@keyframes load {
    0% {
        height: 10%;
    }

    50% {
        height: 100%;
    }

    100% {
        height: 10%;
    }
}

/* 语音音阶-------------------- */
.prompt-layer-2 {
    top: -40px;
}

.prompt-layer-2 .text {
    color: rgba(0, 0, 0, 1);
    font-size: 12px;
}

/* 语音录制结束---------------------------------------------------------------- */
.flex_row {
    display: flex;
    flex-direction: row;
    gap: 10rpx
}

.record-btn-cir {
    flex-basis: 100rpx;
    border-width: 0.5px !important;
    border-color: #dadbde !important;
    border-style: solid;
}

.u_input {
    border-width: 0.5px !important;
    border-color: #dadbde !important;
    border-style: solid;
}

.record-btn-layer .record-btn-1 {
    background: #fff !important;
    // background-image: linear-gradient(to right, #43e97b 0%, #38f9d7 100%);
    color: #000000 !important;
    border-width: 0.5px !important;
    border-color: #dadbde !important;
    border-style: solid;
    border-radius: 8px;
}

.chat_list {
    padding-top: 30rpx;
    max-height: 86vh;
    overflow-y: scroll;
}

.type_right {
    margin: 30rpx 0 30rpx 50%;
}

.type_left {
    margin: 30rpx 0 30rpx 30rpx;
}
</style>
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聊天组件

<template>
    <view class="box">
        <view class="qpk">{{ text }}</view>
        <view :class="type == 'right' ? 'triangle_right' : 'triangle_left'"></view>
    </view>
</template>

<script>
export default {
    props: {
        text: {
            type: String,
            default: ""
        },
        type: {
            type: String,
            default: "right"
        }
    },
    data() {
        return {
        };
    },
    watch: {},
    methods: {},
};
</script>
<style lang="scss" scoped>
// 气泡框样式
.box {
    position: relative;

    .qpk {
        width: 300rpx;
        height: 100%;
        text-align: left;
        background: #43e97b !important;
        -webkit-border-radius: 10px;
        -moz-border-radius: 10px;
        border-radius: 10px;
        word-break: break-all;
        padding: 18rpx 20rpx;
        font-size: 14px;
    }

    .triangle_left {
        position: absolute;
        height: 0px;
        width: 0px;
        border-width: 8px 18px 8px 0;
        border-style: solid;
        border-color: transparent #43e97b transparent transparent;
        top: 8rpx;
        left: -26rpx;
    }

    .triangle_right {
        position: absolute;
        height: 0px;
        width: 0px;
        border-width: 8px 0px 8px 18px;
        border-style: solid;
        border-color: transparent transparent transparent #43e97b;
        top: 8rpx;
        left: 326rpx;
    }
}
</style>
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