AudioSources don't play when setting Time.timescale = 0

I’m using the standard trick of setting Time.timescale = 0 to pause my game. Then I present buttons when paused to restart the level, go to the main menu, mute, shop, etc. I want to play a consistent button sound across all UI buttons when clicked, but when in game pause, my button clip doesn’t play immediately. I assume that Time.timescale=0 tells Unity to also pause new audiosources. Is there any way around this and to make them play immediately? I can’t find anything on the forum or in documentation. Thanks.

What method are you using to play the sounds? Are you sure it’s being called?

This bit of JavaScript seems to work fine:

@script RequireComponent(AudioSource)

function Start()
{
	Time.timeScale = 0f;
	audio.Play();
}

void Start()
{
Time.timeScale = 0f;
this.audioDevice.Play();
}

in C#