H德菲尔monyOS Next 入门实战 - 文字转拼音，文字转语音

pinyin4js 提供了以下接口：
● 文字转拼音（带声调和不带声调）
● 文字转拼音首字母
● 简体繁体互转

let rawText = "风急天高猿萧哀，渚清沙白鸟飞回；"
let pinyin1: string =pinyin4js.convertToPinyinString(rawText, " ", pinyin4js.WITH_TONE_MARK)
//fēng jí tiān gāo yuán xiāo āi ， zhǔ qīng shā bái niǎo fēi huí ；
let pinyin2: string = pinyin4js.convertToPinyinString(rawText, " ", pinyin4js.WITHOUT_TONE)
//feng ji tian gao yuan xiao ai ， zhu qing sha bai niao fei hui ；
let pinyinFirst: string = pinyin4js.getShortPinyin(rawText)
//fjtgyxa，zqsbnfh；
let sTot: string = pinyin4js.convertToTraditionalChinese(rawText)
//風急天高猿蕭哀，渚清沙白鳥飛回；
let tTos: string = pinyin4js.convertToSimplifiedChinese(sTot)
//风急天高猿萧哀，渚清沙白鸟飞回；

文字转语音

import { textToSpeech } from '@kit.CoreSpeechKit';

创建引擎
textToSpeech 提供 createEngine 方法来创建引擎

function createEngine(createEngineParams: CreateEngineParams): Promise<TextToSpeechEngine>;

CreateEngineParams 包含如下字段
● language：语种，当前仅支持“zh-CN”中文
● person：音色。0为聆小珊女声音色，当前仅支持聆小珊女声音色。
● online：模式。0为在线，目前不支持；1为离线，当前仅支持离线模式
● extraParams：扩展参数
其中 extraParams 扩展参数包含如下字段
● style ：string 风格。可选，不设置时默认为“interaction-broadcast”，当前仅支持“interaction-broadcast”广播风格。
● locate：string 区域信息。可选，不设置时默认为“CN”
● name：string 引擎名称。可选，引擎名称，不设置时默认为空
● isBackStage：boolean 是否支持后台播报。默认不支持后台播报

let extraParams: Record<string, Object> = {"style": 'interaction-broadcast',"locate": 'CN',"name": '',"isBackStage": true
}
let paramsInfo: textToSpeech.CreateEngineParams = {language: 'zh-CN',person: 0,online: 1,extraParams: extraParams
}
textToSpeech.createEngine(paramsInfo).then((value) => {this.ttsEngine = value
}).catch((err: BusinessError) => {})

文本播报
创建引擎后，通过调用引擎对象的 speak 方法进行文本播报
TextToSpeechEngine.speak(text: string, speakParams: SpeakParams): void;
● text：待播报的文本
● speakParams：合成播报音频的相关参数
speakParams 包含如下字段
● requestId：合成播报ID，全局不允许重复
● extraParams
○ speed：语速，可选，支持范围[0.5-2]，不传参时默认为1
○ volume：音量，可选，支持范围[0-2]，不传参时默认为1，
○ pitch：音调。可选，支持范围[0.5-2]，不传参时默认为1，
○ languageContext：语境，播放阿拉伯数字用的语种。可选，当前仅支持“zh-CN”中文，默认“zh-CN”
○ audioType：音频类型。可选，当前仅支持“pcm”且为默认
○ playType：合成类型。0：仅合成不播报，返回音频流。1：合成与播报不返回音频流（默认）
○ soundChannel：播报通道，默认为3语音助手通道
○ queueMode：播报模式。可选，0：排队模式播报（默认）。1：抢占模式播报。

let extraParams: Record<string, Object> = {"speed": 1,"volume": 1,"pitch": 1,"languageContext": 'zh-CN',"audioType": 'pcm',"playType": 1,"soundChannel": 3,"queueMode": 1
}
let params: textToSpeech.SpeakParams = {requestId: util.generateRandomUUID(),extraParams: extraParams
}
this.ttsEngine?.speak(text, params)

停止播报

this.ttsEngine.stop()

状态监听
设置播报监听，可以收到开始，完成，暂停，播报信息，错误等状态回调

let listener: textToSpeech.SpeakListener = {//播报开始时，回调此接口onStart: (requestId: string, response: textToSpeech.StartResponse): void => {},//合成或播报结束后分别回调此接口，CompleteResponse.type = 0：合成结束。1：播报结束。onComplete: (requestId: string, response: textToSpeech.CompleteResponse): void => {},//调用stop()方法时，回调此接口onStop: (requestId: string, response: textToSpeech.StopResponse): void => {},//合成播报过程中，出现错误时回调onError: (requestId: string, errorCode: number, errorMessage: string): void => {},//合成播报过程中回调此接口，返回请求ID，音频流信息，音频附加信息如格式、时长等onData:(requestId: string, audio: ArrayBuffer, response: textToSpeech.SynthesisResponse) :void => {}
}
this.ttsEngine?.setListener(listener)

播报策略
● 单词播报方式：[hN] (N=0/1/2) 0-智能判断，1-逐个字母播报，2-单词播报 例如：hello[h1] world
● 数字播报策略：[nN] (N=0/1/2) 0-智能判断，1-逐个号码播报，2-作为数值播报 例如：[n2]123[n1]456[n0]
● 静音停顿：[pN] N为无符号整数，单位为ms，例如：你好[p500]小艺
● 指定汉字发音：[=MN] M表示拼音，N表示声调，1~5分别表示阴平、阳平、上声、去声和轻声5个声调。例如：着[=zhuo2]手

诗词拼音展示

创建拼音展示组件
此组件使用Column和Flex组件来实现，每个Flex组件为一个段落，Flex内容包含多个单个汉字和拼音。
 

@Component
struct PinyinView {@Prop text: string@Prop pinyin: stringprivate textArray: Array<string> = []private pinyinArray: Array<Array<string>> = []aboutToAppear(): void {this.textArray = this.text.split("\n")let pinyinRow = this.pinyin.split("\n")for (let row of pinyinRow) {this.pinyinArray.push(row.trim().split(" "))}}build() {Column() {ForEach(this.textArray, (item: string, rowIndex) => {if (item) {Flex({direction: FlexDirection.Row,wrap: FlexWrap.Wrap,space: { cross: LengthMetrics.vp(8) }}) {ForEach(item.split(""), (item1: string, index) => {this.WordView(item1, this.pinyinArray[rowIndex][index])})}.width('90%').margin({ top: rowIndex == 0 ? 0 : 8 })} else {Row().width('100%').height(22)}})}}@BuilderWordView(text: string, pinyin: string) {Column() {Text(pinyin).fontSize(12).fontColor(Theme.Color.textSecondary).padding({ top: 3, bottom: 3 }).visibility(this.isHanZi(text) ? Visibility.Visible : Visibility.Hidden)Text(text).fontSize(20).fontColor(Theme.Color.textPrimary).margin({ top: 3 })}.width("12.5%")}isHanZi(text: string) {return text.charCodeAt(0) >= 0x4e00 && text.charCodeAt(0) <= 0x9fa5}
}

诗词朗读

@ComponentV2
export struct PoetryDetailPage {@Local soundPlayStatus: boolean = falsettsEngine: textToSpeech.TextToSpeechEngine | null = nullaboutToDisappear(): void {if (this.ttsEngine) {this.ttsEngine.stop()this.ttsEngine.shutdown()}}initEngine(): Promise<void> {return new Promise((resolve, reject) => {if (this.ttsEngine == null) {let extraParams: Record<string, Object> = {"style": 'interaction-broadcast',"locate": 'CN',"name": '',"isBackStage": true}let paramsInfo: textToSpeech.CreateEngineParams = {language: 'zh-CN',person: 0,online: 1,extraParams: extraParams}textToSpeech.createEngine(paramsInfo).then((value) => {this.ttsEngine = valueresolve()}).catch((err: BusinessError) => {Toast.show(err.message)reject()})} else {resolve()}})}speak() {if (this.ttsEngine && this.ttsEngine.isBusy()) {this.ttsEngine.stop()return}this.initEngine().then(() => {let listener: textToSpeech.SpeakListener = {onStart: (requestId: string, response: textToSpeech.StartResponse): void => {this.soundPlayStatus = true},onComplete: (requestId: string, response: textToSpeech.CompleteResponse): void => {if (response.type == 1) {this.soundPlayStatus = false}},onStop: (requestId: string, response: textToSpeech.StopResponse): void => {this.soundPlayStatus = false},onError: (requestId: string, errorCode: number, errorMessage: string): void => {this.soundPlayStatus = false}}this.ttsEngine?.setListener(listener)let extraParams: Record<string, Object> = {"speed": 1,"volume": 1,"pitch": 1,"languageContext": 'zh-CN',"audioType": 'pcm',"playType": 1,"soundChannel": 3,"queueMode": 1}let params: textToSpeech.SpeakParams = {requestId: util.generateRandomUUID(),extraParams: extraParams}let speakText =`${this.poetry?.title}[p200]${this.poetry?.dynasty}[p50]${this.poetry?.author}[p200]${this.poetry?.text}`this.ttsEngine?.speak(speakText, params)})}
}

---

本文的技术设计和实现都是基于作者工作中的经验总结，如有错误，请留言指正，谢谢。

 

分类: HarmonyOS Next

标签: HarmonyOS Next

 

 

 

 

 

 

 

 

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