从一个延迟问题开始It started with a latency problem
一个不能忍受的延迟A latency we couldn't accept
市面上的手机鼓垫普遍存在可感知的延迟。我们决定从音频引擎做起,而不是从界面做起。Most phone drum pads had latency you could feel. We decided to start from the audio engine, not the interface.
原生低延迟引擎A native low-latency engine
用 Dart → FFI → C 核心 → miniaudio 搭起最短信号链,把缓冲压到 256 帧、约 5 毫秒,手感终于对了。We built the shortest signal chain — Dart → FFI → C core → miniaudio — and pushed the buffer to 256 frames, ~5ms. The feel was finally right.
界面改版与正式发布Redesign & launch
围绕"打鼓 + 循环录制 + 音色管理"重做平板界面,加入麦克风采样与分步导入,手指鼓正式登陆 iOS 与 Android。We rebuilt the tablet interface around drumming, loop recording and tone management, added mic sampling and guided import — and brought Finger Drum to iOS and Android.