HTC One M7 :: Distorted Audio When Recording

I use my phone a lot to record audio of my bands' practices, and on my iphone this worked fine, however on my HTC one the audio is distorted beyond recognition. This happens when I use the stock voice recorder, as well as RecForge (and RecForge II) and Hi-Q MP3 Rec apps. Those apps have allowed me to try using front and back mics as well as disabling the Automatic Gain Control. Nothing has worked.

Now, normally I'd chalk this up to a (very disappointing) limitation of the phone, however last week I tried taking a video of the practice instead of an audio recording and the audio was crystal clear. Any audio recorder app that's using the same method as the camera app to capture audio. Lastly, I'd also be up for a video app that lets me turn off the video function and capture just audio.