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The building sector is confronted with two key challenges: minimizing the environmental impacts while ensuring occupants well-being. In this context, the use of sustainable materials with high thermal and acoustical performances appears as a necessity. Therefore, raw earth appears as strategic low-carbon material, as it is naturally abundant, locally available and renewable. It also offers interesting thermal properties to improve summer comfort, thus impacting the energy efficiency and comfort of buildings. Raw earth construction often includes wood elements as structural components.The main objective of the CarAc’Terre project is to remove regulatory and normative obstacles to raw earth construction techniques relative to acoustics. A multi-scale methodology for characterizing the acoustic performance of raw earth construction systems is proposed using both a performance-based and a perceptual approach. A small-size building was constructed out of raw earth bricks in order to characterize vibration reduction index of junctions. The effect of the presence of wood post at the junction was examined, as well as the presence of wood-based cladding to limit acoustic leakage at wood-brick interface. Furthermore, CLT panels covered the construction and the associated junctions were also evaluated. Some rooms were closed using a wood-based stud walls in order to measure airborne sound insulation performance. This paper describes the small-size building, the junction characterization measurement results as well as measured and predicted sound insulation.