使用PIC单片机产生的报警音。
“但是还需要做得更多。”森肯集团的创始人陈世商（音）说。这家企业主要生产警用车辆、报警灯、报警器和防暴设备。
But more needs to be done says Chen Shishang founder of Senken Group a maker of police vehicles warning lights sirens and riot gear.
在实际工程中，报警语句往往成百上千，这样使得人工录音和人工采音的工作量非常大。
In practical projects, the number of alarm sentences is so large that the work of taping and segmentation is very hard for workers.
我们同时在关注着好几件事情，不断将注意力转移到最需要关注的地方，可能是新邮件到达的提示音，也可能是手机电量不足的报警声。
We're aware of several things at once, shifting our attention to whatever's most urgent - perhaps the chime of incoming email, or the beep that indicates the cellphone is low on juice.
我们同时在关注着好几件事情，不断将注意力转移到最需要关注的地方，可能是新邮件到达的提示音，也可能是手机电量不足的报警声。
We're aware of several things at once, shifting our attention to whatever's most urgent - perhaps the chime of incoming email, or the beep that indicates the cellphone is low on juice.
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