Steps to reproduce:
1. Open attached project "925334.zip";
2. Open "Audio Bug" scene
3. Enter play mode
4. Listen to the sound as the audio source gets further away from audio listener

Actual result: first few frames of audio clip are played at the maximum volume regardless of its distance to the audio listener if game object has a rigidbody component

Alternatively, select "AudioSource" in the Hierarchy, uncheck "use rigidbody" boolean in "Audio Player" script component and enter play mode
works as expected without rigidbody component

Reproducible with: 2017.1.0f1, 2017.2.0b1

Not reproducible with: 5.6.2p1, 2017.1.0b6

Regression introduced in 2017.1.0b7