—？—！
本帖最后由 —？—！ 于 2022-12-20 14:06 编辑

如题，求助大佬。
我用其他录音软件录制都不会出现电流声，应该不是设备的问题。
主要代码如下（是一个录音并实时播放的代码）：
  1. import org.lwjgl.openal.AL;
  2. import org.lwjgl.openal.ALC;
  3. import org.lwjgl.openal.ALCCapabilities;
  4. import org.lwjgl.system.MemoryStack;

  6. import java.nio.ShortBuffer;

  8. import static org.lwjgl.openal.AL11.*;
  9. import static org.lwjgl.openal.ALC11.*;

  11. public class Recorder {
  12.     private long device;
  13.     private long playDevice;
  14.     private long context;
  15.     private int sourcePointer;
  16.     private int bufferPointer;

  18.     public void init() {
  19.         device = alcCaptureOpenDevice(alcGetString(0, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER), 44100, AL_FORMAT_MONO16, 1024);
  20.         playDevice = alcOpenDevice(alcGetString(0, ALC_DEFAULT_DEVICE_SPECIFIER));
  21.         context = alcCreateContext(playDevice, new int[]{0});
  22.         alcMakeContextCurrent(context);
  23.         ALCCapabilities alcCapabilities = ALC.createCapabilities(playDevice);
  24.         AL.createCapabilities(alcCapabilities);
  25.     }

  27.     public void recordAndPlay() {
  28.         int channels = 1;
  29.         int sampleRate = 44100;
  30.         try(MemoryStack stack = MemoryStack.stackPush()) {
  31.             ShortBuffer rawRecordBuffer = stack.mallocShort(1024);

  33.             bufferPointer = alGenBuffers();
  34.             sourcePointer = alGenSources();

  36.             alListener3f(AL_POSITION, 0F, 0F, 0F);
  37.             alListener3f(AL_VELOCITY, 0F, 0F, 0F);
  38.             alSourcef(sourcePointer, AL_GAIN, 1F);
  39.             alSourcef(sourcePointer, AL_PITCH, 1F);
  40.             alSource3f(sourcePointer, AL_POSITION, 10F, 0F, 0F);
  41.             alSource3f(sourcePointer, AL_VELOCITY, 0F, 0F, 0F);

  43.             alcCaptureStart(device);
  44.             long beginTime = System.currentTimeMillis();
  45.             while(System.currentTimeMillis() - beginTime <= 10_000) {
  46.                 int availBuffers = alGetSourcei(sourcePointer, AL_BUFFERS_PROCESSED);
  47.                 if(availBuffers > 0) {
  48.                     alSourceUnqueueBuffers(sourcePointer);
  49.                     alSourceQueueBuffers(sourcePointer, bufferPointer);
  50.                 }
  51.                 int samplesIn = alcGetInteger(device, ALC_CAPTURE_SAMPLES);
  52.                 if(samplesIn > 512) {
  53.                     alcCaptureSamples(device, rawRecordBuffer, 512);
  54.                     alBufferData(bufferPointer, AL_FORMAT_MONO16, rawRecordBuffer, sampleRate);
  55.                     alSourceQueueBuffers(sourcePointer, bufferPointer);
  56.                 }
  57.                 if(alGetSourcei(sourcePointer, AL_SOURCE_STATE) != AL_PLAYING) {
  58.                     alSourcePlay(sourcePointer);
  59.                 }
  60.             }
  61.         }
  62.         alcCaptureStop(device);
  63.     }

  65.     public void cleanUp() {
  66.         alDeleteSources(sourcePointer);
  67.         alDeleteBuffers(bufferPointer);
  68.         alcDestroyContext(context);
  69.         alcCloseDevice(playDevice);
  70.         alcCaptureCloseDevice(device);
  71.     }
  72. }
复制代码


调用的时候用的是这个：
  1. public class Main {
  2.     public static void main(String[] args) {
  3.         Recorder recorder = new Recorder();
  4.         recorder.init();
  5.         recorder.recordAndPlay();
  6.         recorder.cleanUp();
  7.         System.out.println("exit");
  8.     }
  9. }
复制代码
小张up
我个人的猜测是：其他软件有专门的算法来消减这所谓的电流声，而你写的Java代码则是直接原始录入了
第一页 上一页 下一页 最后一页