Alternatively, analog stereo sound can be transmitted to headphones or active speakers, or digital 2.0/5.1 sound via SPDIF Toslink. The audio EDID can be manually changed using the audio mode switch. With the audio mode switch, you can set the audio format that the HDMI source provides, as long as the audio track is available. Please note that the same audio format applies to all outputs. Most TVs cannot process 7.1 audio and will remain silent. For HD audio, output via SPDIF or analog is not possible. HD audio formats such as Dolby TrueHD and DTS-HD can only be transmitted via HDMI. Through SPDIF Toslink, digital stereo (LPCM 2.0) or 5.1 audio (Dolby Digital / AC-3 or DTS) can be transmitted, depending on the source material. Digital audio formats do not have volume; this can only be controlled at the audio amplifier. Therefore, with SPDIF connection, you can only adjust the volume on the AV receiver or soundbar. With HDMI audio connection, indirect volume control is possible if the devices support HDMI-CEC. Switching between inputs occurs automatically (auto-switching) or manually via remote control or button. When you turn on a connected HDMI source, it automatically switches to that input. If you turn off the HDMI source, it switches back to the previously used HDMI input. Some devices do not turn off their HDMI output in standby mode, so the switch always receives a signal from an active device. To avoid this, you can disable the auto-switching function. ARC (Audio Return Channel) for outputting TV sound via the digital output is supported, but there is no output at the analog output.