原因是之前写的TTS文件,需要指定采样率和单声道
但是TTS是用的Jacob调用COM+sapi实现的
java+WNI10+JACOB方式
SAPI底层支持的是C,C#【官方文档】
SpAudioFormat SetWaveFormatEx method (SAPI 5.4) | Microsoft Learn
用C实现的方式【可指定输出的WAV格式】
【基于微软 SAPI 的 TTS 程序实现_sapi.h配置-CSDN博客】
懒得看C,直接写个重采样接口好了,参考如下方法
java实现wav的重采样_java wav采样转换-CSDN博客
代码如下:
java">package com.qf.tdboot02.service;import org.springframework.stereotype.Service;import javax.sound.sampled.*;
import java.io.File;
import java.io.IOException;
@Service
public class WavMonoConverter {public static void main(String[] args) {File inputFile = new File("path_to_input.wav");File outputFile = new File("path_to_output.wav");convertStereoToMono(inputFile, outputFile);}public static void convertStereoToMono(File inputFile, File outputFile) {try {AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(inputFile);AudioFormat format = audioInputStream.getFormat();int channels = format.getChannels();AudioFormat newFormat = new AudioFormat(format.getEncoding(),8000,// 采样率为8000 Hzformat.getSampleSizeInBits(),// 采样点1, // 单声道format.getFrameSize(), // 帧大小,对于单声道16位PCM,每帧大小是采样率 * 声道数 * 采样点位数/8 = 8000 * 1 * 2 = 16000,但这里通常设置为采样率,因为每帧通常包含一个采样点8000, // 帧率,通常与采样率相同format.isBigEndian() // 使用小端字节序,这是Java音频系统通常使用的);// 转换音频流为单声道AudioInputStream monoAudioInputStream = AudioSystem.getAudioInputStream(newFormat, audioInputStream);// 写入新的WAV文件AudioSystem.write(monoAudioInputStream, AudioFileFormat.Type.WAVE, outputFile);// 关闭流monoAudioInputStream.close();audioInputStream.close();} catch (UnsupportedAudioFileException | IOException e) {e.printStackTrace();}}
}
java">package com.qf.tdboot02.controller;import com.qf.tdboot02.constant.WavConstant;
import com.qf.tdboot02.service.WavMonoConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;import java.io.File;/*** @author: 作者* @create: 2024-04-17 10:03* @Description:*/
@Component
@RequestMapping("/wav")
public class WavConvertController {private final WavMonoConverter wavMonoConverter;@Autowiredpublic WavConvertController(WavMonoConverter wavMonoConverter) {this.wavMonoConverter = wavMonoConverter;}@GetMapping("/convert")public void convert(String in,String out) {File inputFile = new File(in);File outputFile = new File(out);wavMonoConverter.convertStereoToMono(inputFile, outputFile);}}
接口调用:
http://localhost:8090/wav/convert?in=D://in.wav&out=D://out.wav
生成文件: