Default HTC Sensation Static Volume on Calling

My HTC Sensation is running the latest version of [ROM][Android 4.4.2][HW VSYNC] CM11 with ION and 3.0 kernel. About 95% when I'm making a phone call (no loudspeaker, bluetooth, or headset), I hear static noise and nothing else. When I turn on loudspeaker, then the sound becomes normal. I found a zip file, Audio.zip, in the rom thread in post #1097. But the file is no longer available on Dropbox. Does anyone know of a fix or how to get a copy of the file? Thanks.