longitudinal sound wave 3d model

Create a clean 3D educational physics model of a longitudinal sound wave based on the reference image. The model must be a smooth continuous wave with consistent thickness and gentle curves. IMPORTANT RULES: - No spikes - No spheres - No nodes - No particles - No extra geometry - No artifacts - No branches - No floating objects - No distortions STYLE: Scientific visualization, not abstract, not cartoon, not stylized. It must look like a real physics teaching model suitable for students. GEOMETRY: Keep the topology clean and optimized. Medium polygon count only. Avoid overly complex details. COLOR: Use soft neutral colors (light blue, cyan, or soft red). No neon glow. No strong emission. BACKGROUND: No environment, no floor grid, no shadows. Single isolated object only. TECHNICAL REQUIREMENTS: Optimized for augmented reality (AR). Game-ready mesh. Lightweight for mobile devices. Smooth surface. DO NOT transform the wave into a tube, pipe, or cable. Maintain the appearance of a scientific wave model for