HarmonyOS 鸿蒙Next话筒和喇叭能否同时运行？

具体使用场景是什么呢，这两个是可以的同时使用的。可以参考：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/mic-management-V5

音频录制可以参考：

import { audio } from '@kit.AudioKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { fileIo } from '@kit.CoreFileKit';
const TAG = ‘AudioCapturerDemo’;
class Options {
offset?: number;
length?: number;
}
let context = getContext(this);
let bufferSize: number = 0;
let audioCapturer: audio.AudioCapturer | undefined = undefined;
let audioStreamInfo: audio.AudioStreamInfo = {
samplingRate: audio.AudioSamplingRate.SAMPLE_RATE_48000, // 采样率
channels: audio.AudioChannel.CHANNEL_2, // 通道
sampleFormat: audio.AudioSampleFormat.SAMPLE_FORMAT_S16LE, // 采样格式
encodingType: audio.AudioEncodingType.ENCODING_TYPE_RAW // 编码格式
}
let audioCapturerInfo: audio.AudioCapturerInfo = {
source: audio.SourceType.SOURCE_TYPE_MIC, // 音源类型
capturerFlags: 0 // 音频采集器标志
}
let audioCapturerOptions: audio.AudioCapturerOptions = {
streamInfo: audioStreamInfo,
capturerInfo: audioCapturerInfo
}
let path = getContext().cacheDir;
let filePath = path + ‘/StarWars10s-2C-48000-4SW.wav’;
let file: fileIo.File = fileIo.openSync(filePath, fileIo.OpenMode.READ_WRITE | fileIo.OpenMode.CREATE);
let readDataCallback = (buffer: ArrayBuffer) => {
let options: Options = {
offset: bufferSize,
length: buffer.byteLength
}
fileIo.writeSync(file.fd, buffer, options);
bufferSize += buffer.byteLength;
}
// 初始化，创建实例，设置监听事件
function init() {
audio.createAudioCapturer(audioCapturerOptions, (err, capturer) => { // 创建AudioCapturer实例
if (err) {
console.error(Invoke createAudioCapturer failed, code is ${err.code}, message is ${err.message});
return;
}
console.info(${TAG}: create AudioCapturer success);
audioCapturer = capturer;
if (audioCapturer !== undefined) {
(audioCapturer as audio.AudioCapturer).on(‘readData’, readDataCallback);
}
});
}
// 开始一次音频采集
function start() {
if (audioCapturer !== undefined) {
let stateGroup = [audio.AudioState.STATE_PREPARED, audio.AudioState.STATE_PAUSED, audio.AudioState.STATE_STOPPED];
if (stateGroup.indexOf((audioCapturer as audio.AudioCapturer).state.valueOf()) === -1) { // 当且仅当状态为STATE_PREPARED、STATE_PAUSED和STATE_STOPPED之一时才能启动采集
console.error(${TAG}: start failed);
return;
}
<span class="hljs-comment">// 启动采集</span>
(audioCapturer as audio.AudioCapturer).start((err: BusinessError) =&gt; {
  <span class="hljs-keyword">if</span> (err) {
    console.error(<span class="hljs-string">'Capturer start failed.'</span>);
  } <span class="hljs-keyword">else</span> {
    console.info(<span class="hljs-string">'Capturer start success.'</span>);
  }
});
}
}
// 停止采集
function stop() {
if (audioCapturer !== undefined) {
// 只有采集器状态为STATE_RUNNING或STATE_PAUSED的时候才可以停止
if ((audioCapturer as audio.AudioCapturer).state.valueOf() !== audio.AudioState.STATE_RUNNING && (audioCapturer as audio.AudioCapturer).state.valueOf() !== audio.AudioState.STATE_PAUSED) {
console.info(‘Capturer is not running or paused’);
return;
}
<span class="hljs-comment">//停止采集</span>
(audioCapturer as audio.AudioCapturer).stop((err: BusinessError) =&gt; {
  <span class="hljs-keyword">if</span> (err) {
    console.error(<span class="hljs-string">'Capturer stop failed.'</span>);
  } <span class="hljs-keyword">else</span> {
    fileIo.close(file);
    console.info(<span class="hljs-string">'Capturer stop success.'</span>);
  }
});
}
}
// 销毁实例，释放资源
function release() {
if (audioCapturer !== undefined) {
// 采集器状态不是STATE_RELEASED或STATE_NEW状态，才能release
if ((audioCapturer as audio.AudioCapturer).state.valueOf() === audio.AudioState.STATE_RELEASED || (audioCapturer as audio.AudioCapturer).state.valueOf() === audio.AudioState.STATE_NEW) {
console.info(‘Capturer already released’);
return;
}
<span class="hljs-comment">//释放资源</span>
(audioCapturer as audio.AudioCapturer).release((err: BusinessError) =&gt; {
  <span class="hljs-keyword">if</span> (err) {
    console.error(<span class="hljs-string">'Capturer release failed.'</span>);
  } <span class="hljs-keyword">else</span> {
    console.info(<span class="hljs-string">'Capturer release success.'</span>);
  }
});
}
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