It is impossible to buy jumpers directly. The coaxial player outputs digital signals, and the single-ended 3.5MM receives input analog signals. Different signals will naturally confuse the sound.

I suggest you try this:

1. Buy a coaxial audio converter to convert digital output signals into input analog signals.

2, buy a coaxial input USB sound card, the same principle, can solve the noise problem.

They all have analog audio signal outputs so that audio signals can be connected to stereo.

The coaxial output is (SONY/PHILIPS Digital Inter Face, short for Sony and Philips Home Digital Audio Interface). It can transmit LPCM streams and surround sound compressed audio signals, such as dolby digital and DTS.

SPDIF can be divided into coaxial and optical fiber from the transmission medium. In fact, the signals they can transmit are the same, but the carriers are different, and the interface and connection appearance are also different. Optical signal transmission is a popular trend in the future, and its main advantages are flexible interface and stronger anti-interference ability, regardless of interface level and impedance.

References:

Coaxial output Baidu encyclopedia