One way to reduce cross-talk is to increase the physical distance between singers or to record them in isolation. However, this is not always feasible, as singers need to hear one another to maintain accurate tuning. An effective workaround is the use of contact microphones, such as throat microphones, which capture vocal fold vibrations directly from the skin of the throat. This method offers a significant advantage: the recorded signals are largely immune to interference from other singers, resulting in much cleaner, more isolated recordings. Throat microphones have successfully been used to record vocal ensembles in several past studies [@Scherbaum16_LarynxMicrophones_IWFMA].
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