[翻译] ZLHistogramAudioPlot

ZLHistogramAudioPlot

A hardware-accelerated audio visualization view using EZAudio, inspired by AudioCopy. ZLHistogramAudioPlot was originally developed for Murmur.

这是使用了EZAudio,一个硬件加速的audio可视化view,灵感来自于AudioCopy.ZLHistogramAudioPlot这个最开始是为了Murmur而开发的.

Preview - 预览

Buffer

CocoaPods

You can install ZLHistogramAudioPlot through CocoaPods adding the following to your Podfile:

你可以用CocoaPods来安装ZLHistogramAudioPlot

pod 'ZLHistogramAudioPlot'

Usage - 使用

Checkout the demo app for an example.

下载demo app来看源码吧:

Customizable attributes:

可以定制的属性:

/// The upper bound of the frequency range the audio plot will display. Default:
/// 10000Hz
@property (nonatomic) float maxFrequency;/// The lower bound of the frequency range the audio plot will display. Default:
/// 1200Hz
@property (nonatomic) float minFrequency; /// The number of bins in the audio plot. Default: 30 @property (nonatomic) NSUInteger numOfBins; /// The padding of each bin in percent width. Default: 0.1 @property (nonatomic) CGFloat padding; /// The gain applied to the height of each bin. Default: 10 @property (nonatomic) CGFloat gain; /// A float that specifies the vertical gravitational acceleration applied to /// each bin. Default: 10 pixel/sec^2 @property (nonatomic) float gravity; /// The color of all bins in the audio plot. @property (strong, nonatomic) UIColor *color; /// An array of color objects defining the color of each bin in the audio plot. /// If not set, the color attribute will be used instead. Currently only /// supported by plot type EZPlotTypeBuffer. @property (strong, nonatomic) NSArray *colors;

Dependencies - 依赖关系

ZLHistogramAudioPlot is a subclass of EZAudioPlot. It requires EZAudio. ZLHistogramAudioPlot继承自EZAudioPlot,它需要EZAudio框架支持
It also requires Accelerate framework for hardware acceleration. 他也需要Accelerate来支持硬件加速

Compatibilty - 兼容性

ZLHistogramAudioPlot uses the following interface provided by EZAudio to get audio data:

ZLHistogramAudioPlot是使用以下的接口来获取到EZAudio的audio数据的:

- (void)updateBuffer:(float *)buffer withBufferSize:(UInt32)bufferSize;

It can be easily modified to work with Audio Unit and Core Audio.

你也可以简单的修改到支持 Audio Unit 与 Core Audio

Requirements - 需要的环境

iOS 6 or higher. iOS 6 +
Automatic Reference Counting (ARC). ARC

License

ZLHistogramAudioPlot is available under the MIT license. See the LICENSE file for more info.

转载于:https://www.cnblogs.com/YouXianMing/p/4246756.html

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