DSP Engine: Crossfeed

DSP Engine: Crossfeed

Crossfeed is part of the DSP Engine. For more information on accessing the DSP Engine, see here.

Crossfeed is for headphone listening. It mixes some of the left channel into the right channel, and vice versa, while applying filters and delays that approximate the experience of listening to speakers. It is most useful when listening to older recordings where instruments are panned hard into the left or right channels. When used with these recordings, it helps "center" the soundstage.

Headphone amps often provide an analog crossfeed implementation. Roon uses a digital emulation of such analog circuits called Bauer Stereo to Binaural.

Roon provides a few presets, which correspond to the default settings provided by the author of the library, as well as the analog circuits designed by Chu Moy and Jan Meier--pioneers of analog crossfeed.

There are other interesting approaches to enhancing the headphone listening experience. If you're interested in this topic, try searching for "HRTF" (Head Related Transfer Function).

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