Windows和Linux开发-系统声音控制(获取音量，调整音量和静音)。Qt工程和纯C++开发。

MP3批量调整音量大小亲测好用，用前一定先看里面的使用说明。

用Python写的调整音量的小程序 "calibrationPresets":[], "version":87, "displayedCLSIntro":true, "globalVolume":10, "acceptedAgreement":true, "currentLevel":"B-X", "tutorialProgress00":6, "worldAttempts00":196, "worldAttemptsWithoutNewBest00":195, "percentCompletion00":1, "vSyncKey":0, "visualEffects":1, "bestPercentAccuracy00":1.0165, "colorBlue":"rainbow", "colorRed":"rainbow", "hitErrorMeterSize":3, "hitErrorMeterShape":0, "tutorialProgress01":3, "worldAttempts01":72, "worldAttemptsWithoutNewBest01":7

通过CoreAudioApi来控制系统音量，获取音量、调整音量、静音、非静音