Help adjusting Audio script settings to a specific sound

using UnityEngine; using System.Collections; public class PitchChange : MonoBehaviour { public AudioSource Audio; public float StartingPitch = 1.0f; public float EndingPitch = 2.0f; public float PitchUpScaleFactor = 3.0f; public float PitchDownScaleFactor = 2.0f; bool isMousePressed = false; void OnMouseDown() { isMousePressed=true; } void OnMouseUp() { isMousePressed=false; } // Update is called once per frame void Update () { //If mouse is pressed, increase pitch if(isMousePressed == true) { if(Audio.pitch <= StartingPitch) { Audio.Play(); } //Only increase pitch if "EndingPitch" value has not been reached if(Audio.pitch <= EndingPitch) { Audio.pitch += ((Time.deltaTime * StartingPitch) / PitchUpScaleFactor); } } //Otherwise, decrease pitch back to normal, until we reach starting pitch else { if(Audio.pitch > StartingPitch) { Audio.pitch -= ((Time.deltaTime * StartingPitch) / PitchDownScaleFactor); } else { Audio.Stop(); } } Debug.Log(Audio.pitch); } }Below Ive attached a link to a project Ive been working on. The script was created by someone in the community who was really generous to help me come up with something like this. Basically is a PA300/EQ2B Siren Simulator. These are both widely used sirens in the world but Im going for the FDNY PA300 Model however the EQ2B Is an overall general Siren no different sound on any model. The project has a simple button that winds up and winds down a certain audio you put on the audio source itself. Now what Ive been trying to accomplish for the last 6 hours is to get the closest I can to the real sirens by editing the parameters of the script. Now if ANYONE could even try to help achieve the sound and feel Im looking for it would help ALOT. Here are examples of the sirens Im trying to make.

FDNY PA300: http://www.youtube.com/watch?v=rg7tdrS06M8

and an EQ2B (Electronic Q Siren) : http://youtu.be/ntSjxlpI-nI?t=1m40s watch 4:16 for a windup of the siren (This is a minor response so not much siren use)

Now feel free to edit the audio, the script and the parameters to try to get closer. I really need anyones help. Ive been trying for 6 hours and havent been able to come up with anything close. Thank you!

link text

PA300: https://soundcloud.com/user851264436/fdny-pa300-in-action & https://soundcloud.com/user851264436/fdny-eng-309-reported-manhole

EQ: https://soundcloud.com/user851264436/fdny-eq2b