RealClear AEC SDK is developed by ChongQing RealClear Co.Ltd for acoustic echo cancellation. Our goal is to offer inudtry-leading solutions that is as good as the solutions from top componies like Poly or ADT.
- supports full-band (48 kHz) acoustic echo cancellation for better speech quality.
- supports nonstationary noise suppression with very low computational cost, supports dereverberation.
- supports user-adjustable echo tails of up to 500ms.
- handles various acoustic structures of devices and echo path, for example video sound bar, smart glass or earphones.
- fast convergence (< 200ms) at the speed of up to 100 dB / sec.
- handles single talk echo suppression of up to 80dB under various acoustics environment.
- full-duplex operation outputs lossless and smooth audio (when far and near signal level in normal range), provides more than 40 dB echo suppression during double talk.
- supports all platforms (ARM\RISC-V\MIPS\DSP\X86) with platform-specific float-point or fixed-point algorithms.
- supports far-field sound pickup and beamforming using audio devices with multiple micphones, supports extensible module like afc (adaptive feedback cancellation).
- our solutions have been widely used in applications like video conferencing, cell phones and other consumer electronics.
This SDK can be only used in Visual Studio (recommend VS2019), we provide static/dynamic libraries for your own applications. You can also use the Visual Studio Demo Project.
properties->C/C++->Code Generation->Runtime Library->Multi-threaded DLL（/MD）
API：
extern "C" _declspec(dllexport) void* REAL_AEC_create(int frame_len, int sample_rate);
extern "C" _declspec(dllexport) void REAL_AEC_delete(void* ptr);
extern "C" _declspec(dllexport) void REAL_AEC_process(void* ptr, short* mic_buf, short* spk_buf, short* out_buf);
More demo audio files can be found here.
far.mp4
near.mp4
aecout.mp4
email: [email protected]