播放频率在iPhone [英] playing frequencies on the iPhone

问题描述

有人可以帮助我在iPhone上使用的 AudioQueue 服务方面发挥一定的频率（例如，440赫兹）？我看过的文档，但我似乎无法弄清楚相当如何做到这一点。苹果的样本code也没有帮助我太多。

Can someone help me use the AudioQueue services on the iPhone to play a certain frequency (say, 440 Hz)? I've looked at the documentation, but I can't seem to figure out quite how to do it. Apple's sample code also isn't helping me too much.

谢谢！

推荐答案

/开发/例子/ CoreAudio的/ SimpleSDK / DefaultOutputUnit 对如何在发挥口气样本一个给定的频率和采样率。

/Developer/Examples/CoreAudio/SimpleSDK/DefaultOutputUnit has a sample of how to play a tone at a given frequency and sample rate.

我基本上复制了code（也利用的此博客条目​​），它与iPhone。

I basically copied the code (also using a bit from this blog entry) and it worked with basically no change on the iPhone.

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