Audio was recorded with custom Labview software (National Instruments; digitized at 32 kHz) using an omnidirectional lavalier microphone (Countryman), or with a USB interface board (Intan Technologies; digitized at 30 kHz) using a custom-made microphone and pre-amplifier system.
Do you have any questions about this protocol?
Post your question to gather feedback from the community. We will also invite the authors of this article to respond.