DisPlayers-Audio-Visualizers

DisPlayer is a customizable audio visualization component that works with recording and playing back audio files.

DisPlayers-Audio-Visualizerss

DisPlayers-Audio-Visualizersc

DisPlayers-Audio-VisualizersZ

DisPlayers-Audio-Visualizers

The audio visualizer can be easily embedded into an app that features:

  • audio comments to text or multimedia posts
  • recording and sending audio files in a chat
  • playing back audio files posted in a chat using a dedicated UI component

DisPlayer features 5 default visualization presets that can be customized by the background color (single tone or gradient), the wave color, the number of the wave’s bins/bars, and the wave amplitude.

Installation

The control can be easily embedded into an app:

CocoaPods (recommended)

# For latest release in cocoapods
pod 'DisPlayers-Audio-Visualizers', '~> 0.1.1'

Getting started

Getting started guide for DisPlayers-Audio-Visualizers

  1. You should added next classes into your project:
#import "EZAudio.h" 
#import "DPMainEqualizerView.h"
#import "DPEqualizerSettings.h"
  1. This library contains four types of equalizer visualisation: (Histogram, Rolling, Wave and Circle Wave). And you should chose want kind of equalizer visualization you want and import that class into your project.

Histogram initialization example:

    DPEqualizerSettings *settings = [DPEqualizerSettings createByType: DPHistogram];
    self.equalizerView = [[DPHistogramEqualizerView alloc] initWithFrame: self.view.bounds 
                                                             andSettings: settings];
    [self.view addSubview: self.equalizerView];

     NSString *audioPath = [[NSBundle mainBundle] pathForResource: @"YOUR_AUDIO_FILE_PATH" 
                                                           ofType: @"AUDIO_FILE_TYPE"];
     EZAudioFile *audioFile = [[EZAudioFile alloc] initWithURL: [[NSURL alloc] initWithString: audioPath]];
     self.player = [[EZAudioPlayer alloc] initWithAudioFile: audioFile];
     self.player.delegate = self;
     [self.player play];

EZAudioPlayerDelegate

- (void)  audioPlayer:(EZAudioPlayer *)audioPlayer
          playedAudio:(float **)buffer
       withBufferSize:(UInt32)bufferSize
 withNumberOfChannels:(UInt32)numberOfChannels
          inAudioFile:(EZAudioFile *)audioFile {
          
    dispatch_async(dispatch_get_main_queue(), ^{
        if (self.player.isPlaying) {
            [self.equalizerView updateBuffer: buffer[0] withBufferSize:bufferSize];
        }
    
    });
}
  1. You can also customize equalizer visualisation. You can change default settings for all equalizer visualisation types:
/// The highest bound of the frequency. Default: 7000Hz
@property (nonatomic) float maxFrequency;

/// The lowest bound of the frequency. Default: 400Hz
@property (nonatomic) float minFrequency;

/// The number of bins in the audio plot. Default: 40
@property (nonatomic) NSUInteger numOfBins;

/// The padding of each bin in percent width. Default: 0.2
@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 number of max bin height. Default: Screen height.
@property (assign, nonatomic) CGFloat maxBinHeight;

/// The type of plot that can be displayed in the view using the data. Default: DPPlotTypeBuffer.
@property (assign, nonatomic) DPPlotType plotType;

/// The type of equalizer that can be displayed in the view using the data. Default: DPHistogram.
@property (assign, nonatomic) DPEqualizerType equalizerType;

/// The colors of equalizer background that can be displayed in the view.
@property (nonatomic, strong) NSMutableArray *equalizerBackgroundColors;

/// The colors of low frequency that can be displayed in the view.
@property (nonatomic, strong) NSMutableArray *lowFrequencyColors;

/// The colors of hight frequency that can be displayed in the view.
@property (nonatomic, strong) NSMutableArray *hightFrequencyColors;

/// The colors of bins that can be displayed in the view.
@property (nonatomic, strong) NSMutableArray *equalizerBinColors;

@property (nonatomic, assign) BOOL fillGraph;

Some presets display audio frequencies as a separate waves, which provides more possibilities for cool sound visualization for your project.

Usage

CocoaPods is the recommended way to add DisPlayer to your project:

  1. Add a pod entry for DisPlayer to your Podfile pod 'DisPlayer'
  2. Install the pod(s) by running pod installation.
  3. Include DisPlayer wherever you need it with #import «Equalizers.h».

Requirements

DisPlayer works on iOS 8.0+ and is compatible with ARC projects.
It depends on the following Apple frameworks, which should already be included with most Xcode templates:
CoreGraphics.framework
QuartzCore.framework
CoreAudio.framework
You will need LLVM 3.0 or later in order to build “DisPlayer”

GitHub