33 lines
857 B
C#
33 lines
857 B
C#
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.Linq;
|
|||
|
|
using System.Text;
|
|||
|
|
using System.Threading.Tasks;
|
|||
|
|
|
|||
|
|
namespace XiaoZhiSharp.Utils
|
|||
|
|
{
|
|||
|
|
public class AudioHelper
|
|||
|
|
{
|
|||
|
|
/// <summary>
|
|||
|
|
/// 静音检测
|
|||
|
|
/// </summary>
|
|||
|
|
public static bool IsAudioMute(byte[] buffer, int bytesRecorded)
|
|||
|
|
{
|
|||
|
|
double rms = 0;
|
|||
|
|
int sampleCount = bytesRecorded / 2; // 每个样本 2 字节
|
|||
|
|
|
|||
|
|
for (int i = 0; i < sampleCount; i++)
|
|||
|
|
{
|
|||
|
|
short sample = BitConverter.ToInt16(buffer, i * 2);
|
|||
|
|
rms += sample * sample;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
rms = Math.Sqrt(rms / sampleCount);
|
|||
|
|
rms /= short.MaxValue; // 归一化到 0 - 1 范围
|
|||
|
|
|
|||
|
|
double MuteThreshold = 0.01; // 静音阈值
|
|||
|
|
return rms < MuteThreshold;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|