Ti.Media.Sound with looping doesn't have perfect repetition (for a dialtone)

I'm trying to create a window that looks like the iPhone's Phone dialer page. Part of that is having DTMF tones (the tones you hear when you use a traditional landline phone). I have the sounds and in Audacity they loop perfectly, but with Sound and looping it has a choppy noise at the same periodic timing as the length of the sound clip.

Here's the code:

digitSound = Ti.Media.createSound 
  volume: 1.0
  url: "/sounds/dtmf-#{$.largeCharacter.text}.aif"
  looping: true
 
$.phoneButton.addEventListener "touchstart", (event) ->
  digitSound.play()
 
 
$.phoneButton.addEventListener "touchend", (event) ->
  digitSound.stop()

Any ideas on how to fix this?

Here's a link to the sound file:

https://www.dropbox.com/s/11rdt5bjs09ehtj/dtmf-0.aif

When you press a button on the iPhone dialer, it only plays the sound file once. Its just a quick, short tone, no matter how long you hold down the button. Thats how I would handle it. Seems to follow convention.

However, if you're insistent on looping the track, I would extend the length of the tone in Audacity to make it longer, that way you can play the tone longer without the chop and with much less delay between loops.