用于紧凑框架的示波器 API
几天前,我在搜索移动设备的人机界面。< /a> 但所有蓝牙设备 非常混乱且难以实施。
问题是:“是否有开源或免费的库可以在 WinMobile 平台上制作示波器。
由于我的界面不是人性化的,我将尝试制作某种蜂鸣器,它将向 WinMobile 设备发送声音命令,在另一端 WinMoilbe 设备应该能够读取蜂鸣器音调的频率并识别命令。
移至其他问题
到目前为止,我的研究告诉我,没有免费的语音识别库。 这仍然是这种情况吗(因为我发现的所有帖子都是几年前的)。
Few days ago I where searching for human interface for mobile devices. but all bluetooth devices
are pretty messy and hard to implement.
Question are: "Is there open source, or free library for making Oscilloscope on WinMobile platform.
As my interface is not going to be human, I will try to make some kind of buzzer which is going to send sound commands to WinMobile device, at other side WinMoilbe device should be able to read frequency of buzzer tone and recognize command.
Moved to other question
So far my research telling me that there is no free library for voice recognize. Is this still a case, (because all post I found is old few years).
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能够读取频率相当简单。您需要使用 waveInXxxx API 来捕获传入的声音,然后您可以对该数据运行FFT来确定频率。
MSDN 有一个使用 CF 中的 waveInXxxx 函数的示例。
SDF 有两种 FFT 算法。
Being able to read the frequency is fairly simple. You need to use the waveInXxxx APIs to capture the incoming sound, then you can run an FFT on that data to determine frequency.
MSDN has an example of using the waveInXxxx functions from the CF.
The SDF has two FFT algorithms.