I need help with audio triggered by keypress

Questions & Answers
1

So I’m trying to make a first person game where the player can run and jump and stuff, when the player runs(presses shift) it would play an audiosource and keep looping that same sound. When the player jumps the sound would stop, and once the player lands and keeps running the audio will continue where it left off. I’ve looked all over the internet for things to make the script run how I want it but nothing has worked yet helpp
this is basically what the sfx script looks like

{
    AudioClip runclip;
    AudioSource runsound;
    float maxSpeed = 20;
    bool jumping, sprinting, crouching, moving;
    bool grounded;

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.LeftShift))
        {
            sprinting = true;
        }
        if (Input.GetKeyUp(KeyCode.LeftShift))
        {
            sprinting = false;
        }
        if (sprinting)
        {
            maxSpeed = 40;
        }
        else
        {
            maxSpeed = 20;
        }
        if (crouching)
        {
            grounded = false;
        }
        if ((Input.GetButtonDown("Shift")) & moving & grounded)
        {
            runsound.PlayOneShot(runclip);

        }
        if ((Input.GetButtonUp("Shift")) || !moving || !grounded)
        {
            runsound.Stop();
        }
    }
}
2

void Update()
{
if (Input.GetKey(KeyCode.LeftShift))
{
sprinting = true;
}
else
{
sprinting = false;
}
if (sprinting)
{
maxSpeed = 40;
}
else
{
maxSpeed = 20;
}
if (crouching)
{
grounded = false;
}
if ((Input.GetButton(“Shift”)) & moving & grounded)
{
runsound.PlayOneShot(runclip);

     }
     else if ((Input.GetButtonUp("Shift")) || !moving || !grounded)
     {
         runsound.Stop();
     }
 }

}