响度的配色方案？
在可视化音频 fft 结果时，例如在“跳条”音频均衡器显示、频谱图、频谱图等中，用于指示响度的最常用或最合适的着色方案是什么
。红色表示最响亮？蓝色代表非常安静？或者？？？
What is the most commonly used or most appropriate coloring scheme for indicating loudness when visualizing an audio fft result, for instance in "jumping bars" audio equalizer displays, spectrograms, spectrographs, and etc.
Red for the loudest? Blue for very quiet? Or???
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（4）
在我发布的音频应用程序中，它是绿色、黄色、红色。但这并不基于任何标准——只是根据我的立体声音响的 LED 输出进行的猜测。 :)
我认为答案是在您希望 VU-METER 的严肃程度之间取得平衡。您是想展示 dB 级别的科学精度，还是只是在播放音乐时呈现视觉效果？如果是后者，您将获得很大的自由度，包括使体积单位之间的增量非线性（使 vu 计看起来更“活泼”）以及选择看起来最好的配色方案。
In the audio apps I've shipped, it's green, yellow, red. But that wasn't based on any standard - just a guess based on the led outputs of my stereo. :)
I think the answer is a balance between how serious you want your VU-METER to be. Are you trying to show scientific precision of dB levels or just something that's meant to be visual eye candy as music is playing? If the latter, you got a lot of freedom to work with, including making the increment between volume units non-linear (such that the vu-meter seems more "lively") and choosing whatever color scheme looks best.
传统均衡器有绿色、黄色、红色：
http://www.google.com/images?q=均衡器
Traditional equalizers are green, yellow, red:
http://www.google.com/images?q=equalizer
通常我会看到绿色代表基本音量，然后从黄色到红色代表最大音量。许多电平表只是绿色条，直到它们接近剪切电平，然后它们直接跳到红色条。
Typically I see green for base volume going through yellow to red for loudest. Many level meters are simply green bars until they get near the clipping level and then they jump right to red bars.
根据我的经验，它通常是从安静到响亮的绿色到红色，但通常任何从冷色（例如蓝色）开始到热色（例如红色）的颜色都可以。
From my experience, it is usually green to red from quiet to loud, but generally anything starting with a cool color (such as blue) and moving to a hot color (such as red) will work.