Do "\a" and the Console.Beep() method play the same beep?

Question

\a is an escape sequence which represents a bell alert on character constants. On Console.Beep() method explanation from MSDN:

Plays the sound of a beep through the console speaker.

Let's consider this sample code:

public static void Main(string[] args)
{
     Console.WriteLine("\a");
     Console.Beep();
}

This code creates 2 beeps and they sounds the same to me. Now I need to see the proof.

When I decompile the Console.Beep() method, it uses Win32Native.Beep from kernel32.dll;

public static void Beep(int frequency, int duration)
{
    Win32Native.Beep(frequency, duration);
}

Their frequencies and durations can be different, I don't say anything about these stuff but are their sources the same (Win32Native.Beep)? Which source does \a use for the bell alert?

Answer 1

This is as far as I could gather from examining the audio (Windows 7 64-bit (yes, I had to reboot into windows, I'm that dedicated :) ). I recorded the audio using Fraps, so it should be reliable.

This is the code I used to check them:

using System;
using System.Threading;

namespace StackOverflow
{
    class Program
    {
        private static void Main(string[] args)
        {
            Console.Write("\a");
            Thread.Sleep(500);
            Console.Beep();
        }
    }
}

These are the two tracks in Audacity (Console.Write('\a') being the upper one, Console.Beep() the lower).

At any point where I zoomed in on the tracks, the sine waves exactly matched each other, and they had the exact same duration, so I have to conclude that they are, in fact, the same (on Windows 7 that is).