如何改变均衡器的频率？

Question

是否可以改变均衡器频段的频率，或者只能使用 60Hz 230 Hz 910 Hz 3600 Hz 14000 Hz？

Answer 1

不同的Android设备有不同的频段数量，您可以在支持的频段之间自由设置，如docs所说：

setBandLevel(short band, short level)

Sets the given equalizer band to the given gain value.

Parameters

band - short: frequency band that will have the new gain. The numbering of the bands starts from 0 and ends at (number of bands - 1).

level - short: new gain in millibels that will be set to the given band. getBandLevelRange() will define the maximum and minimum values.

来自 WoodyDev 的回答为我们提供了一些示例代码来获取设备支持的范围：

// New instance of equalizer (add it as a member of your class rather than a scoped instance like this)
Equalizer mEqualizer = new Equalizer(0, mMediaPlayer.getAudioSessionId());

// Get the number of bands available on your device
short bands = mEqualizer.getNumberOfBands();

// Get the gain level available for the bands
final short minEQLevel = mEqualizer.getBandLevelRange()[0];
final short maxEQLevel = mEqualizer.getBandLevelRange()[1];

您可以在这里找到更多意见和帮助：Number of bands in Android Equalizer

如何改变均衡器的频率？

How to change the frequency of an equalizer?

audio

android

equalizer