// the find
CarGuo/GSYRecordWave
MP3音频录制，支持类似 iOS 原生的单边或者双边波形显示，低版本音频权限兼容，本地或者在线音频播放的波形显示，录制波形和播放波形会根据声音频率变色的功能，边播边缓存功能，简书入口http://www.jianshu.com/p/2448e2903b07
An Android library for MP3 recording with animated waveform visualization — single or double-sided, color-shifting by frequency, with local and streaming playback. It wraps LAME for MP3 encoding via prebuilt .so files and draws waveforms on a TextureView. Aimed at Android developers who want voice memo or audio messaging UI without building the codec plumbing themselves.
Ships prebuilt LAME .so files for arm64-v8a, armeabi-v7a, x86, and mips so you don't have to fight NDK builds to get MP3 encoding. The waveform color-shift based on audio amplitude is a genuinely nice touch that most similar libraries skip. Handles low-API audio permission prompts and streaming playback (not just local files) in the same package. 4.0.0 just landed in August 2025 with a stated architecture rewrite, so it's not abandoned.
The README is almost entirely in Chinese with no English documentation beyond the Gradle snippets — if you can't read Chinese, you're reading source and the demo app. The prebuilt .so approach means you're trusting a binary you didn't compile; there's no build script to reproduce them from source. The architecture rewrite in 4.0.0 has zero migration notes or changelog detail beyond '更新全新架构' (new architecture). Includes mips/mips64 .so files in 2025, which is dead ABI space and just dead weight.