阅读说明：本技术 用于回声控制的动态设备扬声器调谐 (Dynamic device speaker tuning for echo control ) 是由 C·M·福里斯特 O·乔亚 B·R·伊金 于 2020-02-25 设计创作，主要内容包括：用于回声控制的动态设备扬声器调谐包括：检测来自设备上的扬声器的音频渲染；至少基于检测到该音频渲染,利用该设备上的话筒来捕捉经渲染音频的回声；对该回声和经渲染音频执行傅里叶变换；确定针对至少一个签名频带的实时传递函数；确定该实时传递函数与参考传递函数之间的差异；以及至少基于该实时传递函数与该参考传递函数之间的差异,通过调整音频放大器均衡来调谐该扬声器以用于音频渲染。对于一些示例,签名频带表示壁回声或替换的安装选项。对于一些示例,在音频渲染正在进行时在各区间期间收集回声。(Dynamic device speaker tuning for echo control includes: detecting an audio rendering from a speaker on a device; based at least on detecting the audio rendering, capturing an echo of the rendered audio with a microphone on the device; performing a fourier transform on the echo and rendered audio; determining a real-time transfer function for at least one signature band; determining a difference between the real-time transfer function and a reference transfer function; and tuning the speaker for audio rendering by adjusting audio amplifier equalization based at least on a difference between the real-time transfer function and the reference transfer function. For some examples, the signature bands represent wall echo or alternative installation options. For some examples, echoes are collected during intervals while audio rendering is in progress.)