我们可以增加Android手机麦克风的增益？ [英] Can we Increase the gain of mic of an android phone?

问题描述

我想提高Android手机的麦克风的增益，使之能够听到非常分钟sounds.Is有可能吗？能否请你帮我这个。

I am trying to increase the gain of the mic of an android phone so that it will be capable of hearing very minute sounds.Is it possible? Can you please help me with this.

推荐答案

此链接应进一步为您带来。使用setStreamVolume（...）来设置音量更高。但要注意，有一个最大的，可以通过调用getStreamMaxVolume（...）被要求提供。因此麦克风的增益可能是由硬件我猜限制。所以这是相当不可能做到这一点上飞，但怎么样记录了一下，试图通过的均衡器然后认识类似心跳？听起来很难，但也许有可能。

this link should bring you further. use setStreamVolume(...) to set volume higher. but note that there is a maximum that can be asked for by calling getStreamMaxVolume(...). so mic gain is probably limited by hardware i would guess. so it is rather not possible to do this "on-fly" but what about recording a bit, trying to amplify a special frequency by equalizer and then recognize something like a heartbeat? sounds hard but maybe possible.

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