Definition: The term 'group audio' in the Bible refers to a collection of audio recordings made for use in worship services, usually with different voices or instruments. The 'audio' part likely means the sound, perhaps through speakers or headphones. This could refer to both audio devices (like radios and portable speakers) as well as traditional church recording equipment used by worshippers. For example, a group audio could be used during services where multiple worshipers are singing songs together in unison.
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