2014/10/15 下午 10:11:35

iphone Programming Glossary: musical

http://stackoverflow.com/questions/1002838/audio-on-the-iphone

no longer available from Apple CrashLanding iPhone sample app. I found OpenAL to be ideally suited to games or even a musical instrument samples could be pre loaded adjusting the frequency was easy and looping was no problem. The deal breaker for..

Does Apple reject apps that use images used in Apple's apps?

http://stackoverflow.com/questions/11156065/does-apple-reject-apps-that-use-images-used-in-apples-apps

in Apple's apps I'm making an audio player app. In apple's Music app if music album or podcast doesn't have artwork musical note image or podcast icon image are shown instead of artwork. I want to do same thing. Can I use images in apple's Music.. do same thing. Can I use images in apple's Music app for my app Will apple reject my app Do I have to create images of musical note and podcast icon by my self Or is it recommended to use apple's images for my app for user experience I also want to..

When does a touchesBegan become a touchesMoved?

http://stackoverflow.com/questions/1122616/when-does-a-touchesbegan-become-a-touchesmoved

touch at a distinct disadvantage. It's very asymmetric and bad news for apps that demand precise input like games and musical instruments. To see this bug phenomenon in action slowly drag the iPhone screen unlock slider to the right. note the sudden..

Getting the musical data of an iPod-track

http://stackoverflow.com/questions/3905240/getting-the-musical-data-of-an-ipod-track

the musical data of an iPod track How can I get the content raw sample data of an iPod track I've seen apps like Ringtone Designer..

FFT on iPhone to ignore background noise and find lower pitches

http://stackoverflow.com/questions/7181630/fft-on-iphone-to-ignore-background-noise-and-find-lower-pitches

guitar sounds and or lots of powerful overtones in its spectrum. Look at a wide band spectrum or spectrograph of your musical sounds and you will see the problem. Other methods are usually needed for a more reliable estimate of musical pitch. Some.. of your musical sounds and you will see the problem. Other methods are usually needed for a more reliable estimate of musical pitch. Some of these include autocorrelation methods AMDF ASDF Cepstrum Cepstral analysis harmonic product spectrum phase..