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Photo Capture Sample Swift 4 + iOS 11

After update iOS 11 with Swift 4, photo capture couldn’t. Here is one of the sample source code of using Swift 4 + iOS 11. Check it out.

Simultaneously Download with NSOperation by Swift 3

Here is a sample application which Simultaneous download like iTunes.

Blending two DNG Images by using Core Image

  iOS Core Image  has many filters. It can be able to handle the DNG/RAW image file. Here is a sample code.

Blending two images by using GPUImage 2

  GPUImage is awesome framework and GPUImage 2 also great which adopted Swift 3. Here is a simple blending sample.

UIButton.setTitle flickering suppression. Swift 3

When change the title in UIButton dynamically. There was flickering. It was caused by animation. Here is a work around.

Simple Calendar Sample for Swift 3 by using the JTAppleCalendar

This article will introduce you how to create simple iOS App by using JTAppleCalendar.

Don’t start the Timer in callback. Swift 3.0

This is a kind of blunder when I used the interval timer in Swift 3.0.

How to record simultaneously microphone and player with AVAudioEngine, Swift 3.0

For instance, like Karaoke. In case of synchronized recording and playing audio. It is possible to realized by using AVAudioEngine. All source code is here. By using mixer node, you can add more inputs. Customize it yourself. Enjoy. Check it out.

iOS10: PCM Down sampling

To solve this issue, spent over one week. AVAudioEngine inputNode(Mic) sampling rate is fixed at 44100 Hz. But I wanted to get the 16000 Hz PCM data. Code is simple. I used AVAudioConverter in installtap. Code is here.  

AVAudioEngine Reverb On/Off

When AVAudioEngine Reverb.bypass set to the false, Audio-signal has been muted. Why? This is one of the alternative code. Part of reverb on/off Sample code is here

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