关于蓝牙打电话有鞭炮声的背景声

用蓝牙打电话（连接GSM手机），在发送端的蓝牙耳机里可以听到类似鞭炮声的背景声，随着距离的增加和方位的不同而变大。不知各位高手有没遇到过，如何解决?我们用CSR_BC04_ROM的chip,谢谢！

没人遇到过么?

元件布局和l布线的问题，请教高手检查你的布线．
给你一个方向就是保护弱信号

弱信号指什么?
另外布局不会有什么问题。试图增加发射功率也没有改善。
楼上的，你遇到过此类的问题么?如果没有，就不要凭感觉来说了。
如果遇到，希望你给些指导

音频信号就是弱信号，容易被高频信号干扰，比如，蓝牙，ＦＭ，等等射频信号都要尽量远离他，还有一个就是地的隔离，音频信号的地最好单独取一小块，这些可都是我压箱底的

voice on BT is the PCM signal , it's digital mode . about layout , we are very concern it . I also a RF engineer and work on it for 5 years,so don't worry about it. if you have experiences on BT , pls give some suggestion.

can you tell me how  tell apart a pcb layout good or not on VOICE?and your layout engineer
do what on anti-jamming ?

I think the fisrt ,you need improve the bluetooth antenna performance .

,mchinson , thanks . could you tell me about your contact mail , we hope we can communicate on this issue.

,mchinson , thanks . could you tell me about your contact mail , we hope we can communicate on this issue. my contact mail : brian39@citiz.net

我也遇到了这个问题，怀疑可能是晶振不稳定造成的；