Same mic, same voice, same room — poor recording on the phone, clear recording on the PC. The microphone did not change between the two tests. The path the sound travelled did. Here is what is really going on, in plain words.
This is the question the video spends a full section answering — why does the BOYA mic sound better on PC? — because it decides whether the mic is bad or just badly matched. In Anshu's test the mobile recording stayed poor even after a hub, an adapter and a special app forced it to work, while the PC recording was clear with a fraction of the effort. The mic was identical. Everything around it was not.
Between your voice and the saved file, a phone puts several obstacles. The signal arrives through an adapter chain the phone was not designed for. The audio system is tuned for phone calls — aggressive processing that boosts, cuts and pumps levels, rough treatment for a video recording. Many apps then record from the wrong source or at fixed gain, so the voice lands too weak or too harsh. Stacked together, they produce exactly what the test showed: a recording that works, technically, and sounds poor, honestly.
A computer treats the mic as what it is: an audio input device. You select it directly as the recording source, set its level in the sound settings or your recording software, and the path from mic to file stays short — no call processing sitting in the middle, no adapter lottery deciding whether the device is even recognised. That is the simple core of the video's explanation for the PC result: the same microphone, finally allowed to just do its job. For tutorials, classes and voiceovers, where you also record your screen on the same machine, this is the natural home for a mic like this.
Both answers are true, for different owners. Judged as a PC microphone, this mic did its job well in the test — clear voice, easy setup, sensible budget. Judged as a mobile microphone, it failed the test's phone — compatibility first, sound quality second. The lesson generalises beyond BOYA: never ask "is this mic good" without finishing the sentence — good on what, plugged into which device, recorded through which app. That unfinished sentence is where most budget-mic disappointment is born.
Sound cannot be judged from text. The video has the live mobile and PC recordings, the comparison with the phone's own mic, and the final buying advice.
▶ Watch Full VideoBecause the recording path differs. On a phone the signal crosses adapters, call-tuned processing and often an app recording at fixed gain or from the wrong source. On a PC the mic is selected directly as an input with a short, clean path. In this video's test that difference alone turned poor mobile sound into clear PC sound with the same mic.
Partly. An app that genuinely records from the external or USB source — USB Camera Pro in this test — fixes the source problem. It cannot remove the phone's own audio processing or a model-level compatibility fight, which is why the test's mobile sound stayed poor even with the right app.
No. Mics designed for phones from the start — with the phone's connector and routing in mind — avoid most of this obstacle course. The problem in this test is a PC-style mic pushed into phone duty, which is a matching problem, not a universal phone problem.