C＃中的哔哔声听力测试 [英] Beep beep hearing test in C#

问题描述

我正在开发.Net compact framework 3.5。我想为我的设备生成一个蜂鸣声，我指的是用VB.Net编写的代码。但问题是我不能在C＃.Net中使用相同的波形格式。我指的是这个帖子产生一个哔哔声



https://social.msdn.microsoft.com/Forums/vstudio/en-US/c2b953b6-3c85-4eda-a478-080bae781319/ beep-beep？forum = vbgeneral [ ^ ]



我的尝试：

 使用 System.Collections.Generic; 
 使用 System.Text; 
 使用 System.Media; 
 
 命名空间 RFID_IndicateRSSI 
 {
  class  beep 
 {
  public   void  Beep（ int 幅度， int 频率， int 持续时间）
 {
  double  A =（（幅度*  2  ^  15 ）/  1000 ） -   1 ; 
  double  DeltaFT =  2  * Math.PI *频率/  44100 ; 
 
  int  Samples =  441  *持续时间; 
  int 字节=样本*  4 ; 
  int  [] hdr = {& H46464952， 36  +字节，& H45564157， & H20746D66， 16 ，& H20001， 44100 ， 176400 ，& H100004，& H61746164，Bytes}; 
 使用（MemoryStream MS =  new  MemoryStream（ 44  +字节））
 {
 
 使用（BinaryWriter BW =  new  BinaryWriter（MS））
 {
  for （ int  i =  0 ; i <  hdr.Length-1; i ++）
 {
 BW.Write（hdr [i]）; 
} 
  for （ int  i =  0 ; i < 样本-1; i ++）
 {
 短样本; 
 sample = Convert.ToInt16（A * Math.Sin（DeltaFT * i））; 
 BW.Write（样本）; 
 BW.Write（样本）; 
} 
 BW.Flush（）; 
 MS.Seek（ 0 ，SeekOrigin.Begin）; 
 使用（SoundPlayer SP =  new  SoundPlayer（MS））
 {
 SP.Stream =  null ; 
 SP.Stream = MS; 
 SP.PlaySync（）; 
} 
} 
} 
} 
 
} 
} 

我试过这个代码，但'hdr'中的值得到错误。错误是'波形头已损坏'即使我尝试编写另一个数据流，它也不会接受。我需要帮助。



P.S.我不能使用Console.beep（）。 Net Compact框架不支持它。

解决方案

这是VB.NET代码的更正翻译，在完整框架上适用于我：

 使用系统; 
 使用 System.IO; 
 使用 System.Media; 
 
 静态  class  beep 
 {
  public   static   void 哔（ int 幅度， int 频率， int 持续时间）
 {
  double  A =（（幅度* Math.Pow（ 2 ， 15 ））/  1000 ） -   1 ; 
  double  DeltaFT =  2  * Math.PI *频率/  44100 ; 
 
  int  Samples =  441  *持续时间/  10 ; 
  int 字节=样本*  4 ; 
  int  [] hdr = {0x46464952， 36  +字节，0x45564157,0x20746D66， 16 ，0x20001， 44100 ， 176400 ，0x100004， 0x61746164，字节}; 
 
 使用（MemoryStream MS =  new  MemoryStream（ 44  + Bytes））
 使用（BinaryWriter BW =  new  BinaryWriter（MS））
 {
  for （ int  i =  0 ; i <  hdr.Length; i ++）
 {
 BW.Write（ HDR [I]）; 
} 
  for （ int  i =  0 ; i < 样本; i ++）
 {
  short 样本; 
 sample = Convert.ToInt16（A * Math.Sin（DeltaFT * i））; 
 BW.Write（样本）; 
 BW.Write（样本）; 
} 
 
 BW.Flush（）; 
 MS.Seek（ 0 ，SeekOrigin.Begin）; 
 
 使用（SoundPlayer SP =  new  SoundPlayer（MS））
 {
 SP.Stream =  null ; 
 SP.Stream = MS; 
 SP.PlaySync（）; 
} 
} 
} 
} 

希望这也适用于CF. ：）

I am working on .Net compact framework 3.5. I want to generate a beep for my device and I am referring a code which is written in VB.Net. But the problem is I can not use the same wave format in C#.Net. I am referring this thread to generate a beep sound

https://social.msdn.microsoft.com/Forums/vstudio/en-US/c2b953b6-3c85-4eda-a478-080bae781319/beep-beep?forum=vbgeneral[^]

What I have tried:

using System.Collections.Generic;
using System.Text;
using System.Media;

namespace RFID_IndicateRSSI
{
    class beep
    {
        public void Beep(int Amplitude, int Frequency, int Duration)
        {
            double A = ((Amplitude * 2 ^ 15) / 1000) - 1;
            double DeltaFT = 2 * Math.PI * Frequency / 44100;
            
            int Samples = 441 * Duration;
            int Bytes = Samples * 4;
            int[] hdr = {&H46464952, 36 + Bytes, &H45564157,&H20746D66, 16, &H20001, 44100,176400, &H100004, &H61746164, Bytes};
            using (MemoryStream MS = new MemoryStream(44 + Bytes))
            {

                using (BinaryWriter BW = new BinaryWriter(MS))
                {
                    for (int i = 0; i < hdr.Length-1; i++)
                    {
                        BW.Write(hdr[i]);
                    }
                    for (int i = 0; i < Samples -1; i++)
                    {
                        short sample;
                        sample = Convert.ToInt16(A * Math.Sin(DeltaFT * i));
                        BW.Write(sample);
                        BW.Write(sample);
                    }
                    BW.Flush();
                    MS.Seek(0, SeekOrigin.Begin);
                    using (SoundPlayer SP = new SoundPlayer(MS))
                    {
                        SP.Stream = null;
                        SP.Stream = MS;
                        SP.PlaySync();                        
                    }
                }
            }
        }

    }
}

I tried with this code but value in 'hdr' getting error. The error is 'The wave header is corrupt' Even if I try to write some another stream of data, its not accepting as well. I need help with this one.

P.S. I can not use Console.beep(). It's not supported by Net Compact framework.

解决方案

Here's a corrected translation of the VB.NET code, which works for me on full framework:

using System;
using System.IO;
using System.Media;

static class beep
{
    public static void Beep(int Amplitude, int Frequency, int Duration)
    {
        double A = ((Amplitude * Math.Pow(2, 15)) / 1000) - 1;
        double DeltaFT = 2 * Math.PI * Frequency / 44100;
        
        int Samples = 441 * Duration / 10;
        int Bytes = Samples * 4;
        int[] hdr = { 0x46464952, 36 + Bytes, 0x45564157, 0x20746D66, 16, 0x20001, 44100, 176400, 0x100004, 0x61746164, Bytes };
        
        using (MemoryStream MS = new MemoryStream(44 + Bytes))
        using (BinaryWriter BW = new BinaryWriter(MS))
        {
            for (int i = 0; i < hdr.Length; i++)
            {
                BW.Write(hdr[i]);
            }
            for (int i = 0; i < Samples; i++)
            {
                short sample;
                sample = Convert.ToInt16(A * Math.Sin(DeltaFT * i));
                BW.Write(sample);
                BW.Write(sample);
            }
            
            BW.Flush();
            MS.Seek(0, SeekOrigin.Begin);
            
            using (SoundPlayer SP = new SoundPlayer(MS))
            {
                SP.Stream = null;
                SP.Stream = MS;
                SP.PlaySync();
            }
        }
    }
}

Hopefully that should also work on CF. :)

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