I. Why Do USB Decoding Data Cables Affect Sound Quality? If the output from the mobile phone end is extremely stable and abundant, it could be assumed that USB cables would have little impact on the subsequent devices. However, this is not possible. Not to mention that the OTG output judgment voltages of different brands of mobile phones are different. Even different models of mobile phones with different main control chips from the same brand will have variations, or the situation may change suddenly after a firmware upgrade. It is precisely because the USB dongle often encounter instability during operation…