For the implementation of audio removing from iPhone video on desktop, Joyoshare Media Cutter (for both Windows and Mac) is not the only solution, but definitely the optimal one.
It's a brilliant video editor shining for its modern and clean interface as well as its wide compatibility. No matter what you are a beginner and professional, you could use it to remove audio from any video, such as iPhone, iPad, Apple TV, game consoles, MP4, WMV, AVI, MKV, MPEG, TS, YouTube, etc by a few easy steps.
More than muting iPhone videos, it delivers the ability to crop, convert, rotate iPhone video, make ringtone for iPhone, insert subtitles and background music to iPhone video, apply special effects, extract audio from iPhone video, and many others.
Key Features of Joyoshare Media Cutter:
Remove audio from any video in a few clicks
Customize codec, resolution, bit rate, frame rate, etc
Cut and merge iPhone videos losslessly with high-speed mode
Edit iPhone videos, like trim, crop, effects, etc, with encoding mode
Compatible with various device video formats and all general formats