The steps of how to cut MP3 in VLC is easy for everyone and if you only need to cut a single small audio file, VLC would suffice. However, since it needs to record and play the audio from the start point you set until it reaches the end point, it would take much time if the duration of the part you want to cut is too long. Besides, some people have also complained that the start time and end time of the output audio are not accurate enough. Based on such cases, I'd like to recommend WonderFox HD Video Converter Factory Pro to you to avoid the trim MP3 VLC problem. Its built-in video editor can help you cut video and audio files in the most effective way. The following steps show you how accurate and fast it is to cut audio.