The AUX input on the Sony HT-S20R is intended for analog stereo signals. This indicates that: Audio is processed in 2.0 channels rather than full 5.1. The soundbar will attempt to simulate surround sound to a certain extent through audio processing.
There is no Dolby Digital or DTS decoding available over AUX. Thus, while you can experience real-time game audio, it will not provide true cinematic surround sound. Nevertheless, it remains a great choice if your gaming device (such as a Nintendo Switch, older PC, or handheld) lacks support for HDMI ARC or optical output.
🎧 Optimal Method for Achieving 5.1 Surround Sound While Gaming To obtain authentic 5.1 surround sound, consider using one of the following alternatives to AUX: HDMI ARC – Perfect if your gaming console or television is compatible. Optical Input (TOSLINK) – Delivers digital surround sound from devices like PlayStation, Xbox, or contemporary PCs.
Instructions for Setting It Up for Gaming Using AUX cable: Connect a 3.5mm to RCA cable from your PC or console controller. Switch the soundbar to “AUDIO IN” mode. This setup is suitable for stereo gaming, but does not provide full surround sound.
Using HDMI ARC (Recommended): Insert the HDMI cable into the ARC-enabled port on your television. Activate HDMI-CEC and ARC in the television settings. Change the soundbar to “TV” mode.
Using Optical: Utilize a TOSLINK optical cable. Configure the gaming console or PC to output Dolby Digital 5.1. Set the soundbar to “OPTICAL” mode.
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📌 Concluding Thoughts If you are connecting through AUX, anticipate stereo audio rather than true 5.1 surround sound. For complete surround sound during gaming, optical or HDMI ARC is the recommended approach. The Sony HT-S20R continues to be a valuable option for gamers seeking to enhance their experience beyond basic TV speakers without overspending.