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85楼
发表于 2025-11-29 14:58
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来自 广东深圳
其实问AI也不是不行, 但前提是你得知道些基础, 比如对音乐制作而言Atmos只是一套专用于后期的模拟算法, 并非一套现场收音标准, 又比如声场到底是什么.
Yes, if your goal is purely to reproduce a live experience by preserving the natural sonic information from the recording environment "as is" (i.e., capturing the ambient soundfield with minimal intervention), a simple pair of 120-degree setup mics—like the classic ORTF stereo technique—can indeed suffice for basic spatial audio reproduction without needing multitrack mixing or mastering. However, this approach has limitations when it comes to full Dolby Atmos integration, as Atmos thrives on 3D immersion with height and object-based elements that a 2-channel stereo pair inherently lacks. It can work as a starting point or for headphone-based binaural playback, but for true Atmos-compatible 3D live reproduction, you'd need a more advanced minimal setup (e.g., an ambisonic mic or an extended array like ORTF-3D) to capture the full spherical environment without post-processing. Let me explain step by step, grounded in standard recording practices as of late 2025.
1. Understanding Your Setup: The 120-Degree Pair (ORTF Technique)What It Is: ORTF uses two cardioid microphones spaced 17 cm apart (mimicking human ear distance) at a 110-120° angle, creating natural stereo imaging through time and level differences. It's excellent for capturing a live venue's ambience, acoustics, and directional cues "as heard" from a single point, without artificial panning.
This preserves the environment's sonic integrity—no EQ, compression, or multitrack layering needed if you're aiming for raw fidelity.
Why It Fits Your "Live Experience" Goal: It reproduces a realistic, enveloping stereo soundstage that feels "live" on headphones or speakers, especially for acoustic performances, field recordings, or ASMR-like intimacy. No multitrack hassle: Just record the pair directly to a 2-channel file, and playback captures the venue's reverb, crowd noise, and spatial depth "as is."
Minimal Requirements: A portable recorder (e.g., Zoom H6 at ~$300) plus quality cardioids (e.g., Rode NT5 pair at ~$400) totals under $1,000. Set up at the "sweet spot" (e.g., audience perspective), hit record, and you're done—no mixing desk or DAW mastering.
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