2025-09-20

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刷到了这个视频，顺手学一下：🔗 [小波 vs 傅里叶，结合可视化简单讲透小波变换原理_哔哩哔哩_bilibili] https://www.bilibili.com/video/BV11hYPzWEMZ/ 

重新复习/学习了一些数字信号/模拟信号，DAC/ADC，硬件DSP的内容，修改了🔗 [2025-08-28 - Truxton's blog] https://truxton2blog.com/2025/08/18141/2025-08-28/  和 🔗 [（2023-03-29）（新的研究方向）音频，DSP硬件，AI风格迁移，开发板 - Truxton's blog] https://truxton2blog.com/2023-03-29-research-idea-audio-dsp_hardward-ai_music/ 

对于这张图里提到的实时卷积混响：这个效果也有其他关键词（impulse response/IR/冲激响应/脉冲响应），一个非常简单的例子就是模拟出大喇叭音响在大礼堂/教堂的回音效果。

参考了教程🔗 [LOGIC PRO X - Audio File As Impulse Response - YouTube] https://www.youtube.com/watch?v=J3zcb8QDalQ 和 🔗 [Use impulse responses in Logic Pro for Mac - Apple Support] https://support.apple.com/guide/logicpro/use-impulse-responses-lgcef2af4d05/mac 

搞了个简单的例子（使用默认参数，单纯是为了看看这个效果是什么样子的）：