Then you get to take and link the magical product because it’s not something an extractor can handle. It is for separating the sound from the HDMI so that you can connect a device with e.g. an optical cable. However, it is not possible to change the sound volume. It requires a device on the “other side” that handles sound and volume and since it is not possible to send commands (eg increase/decrease volume) via either toslink or RCA, it will not work.
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