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Low Frequency Feedback Drones: A non-invasive augmentation of the double bass

This paper illustrates the development of a Feedback Resonating Double Bass. The instrument is essentially the augmentation of an acoustic double bass using positive feedback. The research aimed to reply the question of how to augment and convert a double bass into a feedback resonating one, without invasively modifying the instrument. The conversion process illustrated here is applicable and adaptable to double basses of any size, without making irreversible alterations to the instruments.