D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org)
15 人推荐 · 跨 13 个月 · 2017–2026
中文导读
Xiph.org 的 Monty Montgomery 用真实的音频测量设备与复古模拟工作台，现场直观演示了采样、量化、位深与抖动（dither）的实际工作原理，用示波器实证彻底粉碎了数字音频是'阶梯状波形'的百年迷思。
为什么 HN 推它
被公认为粉碎玄学'发烧友迷思'与阶梯波误区的黄金标杆，也是程序员搞懂数字信号处理与音频底层的绝佳入门教材。
「这可能是我这辈子看过的讲得最透彻、水平最高的科普视频。」HN 网友原话：might be the best explanatory video I have ever witnessed
英文原摘要（HackerTube / Claude 整理）
Monty Montgomery of Xiph.org gives real-time demonstrations of sampling, quantization, bit depth and dither using real audio equipment, including both digital analysis tools and vintage analog bench gear. It shows that sampled audio is not stair-stepped and corrects common misconceptions about digital audio.
HN calls it the gold-standard debunking of audiophile myths and the stair-step misconception, and recommends it as a primer on digital audio.
HN 上的提及
Try watching this video
It's worth watching the video in my references [1] - it's a proper hacker's view of digital audio
might be the best explanatory video I have ever witnessed
I like Monty Montgomery from Xiph's explanation video[1] on Sine waves, sampling and digital stairsteps.
Anyone interested in the argument over digital audio vs. analog will enjoy the above.