从麦克风输入获取声音幅度和频率的最佳方法是什么？
[英]What is the best way to get amplitude and frequency of sound from microphone input?
问题描述
I need to analyze the sound from iPhone microphone and draw noise histogram. 
我需要分析iPhone麦克风的声音并绘制噪声直方图。 What frameworks I can use for it? 我可以使用哪些框架？
1 个解决方案
解决方案1
1 已采纳 2015-11-20 12:18:49
The simplest way is to use AVFoundation framework. 最简单的方法是使用AVFoundation框架。 There is AVAudioRecorder class which has method "peakPowerForChannel". 有AVAudioRecorder类，它具有方法“ peakPowerForChannel”。 You can find example of usage here https://github.com/dydus0x14/isandbox/blob/master/iOS/PeakVoiceView/PeakVoiceViewDemo/ViewController.swift : I hope it will help you. 您可以在这里找到用法示例https://github.com/dydus0x14/isandbox/blob/master/iOS/PeakVoiceView/PeakVoiceViewDemo/ViewController.swift ：希望对您有所帮助。
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