Audio Effects

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Spatial Audio

Previously, we described a digital audio signal as a discrete series of val-

ues, sampled uniformly in time. But the listener has two ears and hears the

sound differently in each ear depending on the location of the source. Stereo

audio les encode two signals, or channels, for listening over headphones or

loudspeakers, so that sources can be localized. Furthermore, spatial audio

reproduction systems will often use a large number of loudspeakers, recreat-

ing an entire sound scene, thus requiring more channels.

For reproduction of spatial audio via multiple loudspeakers, we should

rst consider how we localize sound sources. C ...