DIRAC2 用于实时变调和自动调谐？
有没有人实现过 http://www.dspdimension.com/technology- 的 DIRAC2 库Licensed/dirac2-iphone/ 在 iPhone 上进行实时音调校正？该库似乎不支持实时处理，但也许有人已经做到了？
谢谢
Has anyone implemented the DIRAC2 library from http://www.dspdimension.com/technology-licensing/dirac2-iphone/ for real time pitch correction on the iPhone? The library doesn't appear to support real time processing but perhaps someone has done it?
Thx
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我将 DIRAC2 集成到 iPhone 应用程序中，这样我就可以修改播放速度，它确实可以在 iPhone 4 上实时运行。我必须使用尽可能低的设置来降低 CPU 使用率，但它确实可以在没有任何延迟的情况下播放。跳过，我可以无缝更改播放速度。
在 3GS 设备上运行相同的项目产生的结果较少 - 即音频有足够的跳跃，以至于它实际上不可用。不过，需要注意的是，我在免费版本的 DIRAC2 上运行测试，该版本仅支持 44100 采样率，这比我需要的要高得多。如果使用专业版并将采样率削减到 22050 或更低，它可能可以在 3GS 上运行，但不要引用我的话。
任何早于 3GS 的设备都绝对没有机会进行实时播放。
希望这有帮助。
I integrated DIRAC2 into an iPhone app so I could modify the playback speed, and it does indeed work in real-time on an iPhone 4. I had to use the lowest possible settings to keep the CPU usage down, but it does play without any skips and I am able to change the playback speed seamlessly.
Running the same project on a 3GS device yielded lesser results - namely that the audio had enough skipping that it wasn't really usable. One caveat to this, though, is that I was running my test on the free version of DIRAC2 which only supports a 44100 sample rate, which is much higher than I need. If the pro version is used and you slash the sample rate down to 22050 or lower, it might work on a 3GS, but don't quote me on that.
Anything older than a 3GS has absolutely no chance of real-time playback.
Hope this helps.
从 DSP Dimensions 确认，当前的 DIRAC2 库无法实时工作。
Confirmed from DSP Dimensions, that the current DIRAC2 library will not work in real time.