Android: MediaPlayer setVolume function not working

Question

I am trying to play sound via media player on STREAM_SYSTEM

using

mediaPlayer.setVolume(1.0f , 1.0f);

or

mediaPlayer.setVolume(0.90f , 0.90f);

But it is playing on vol as per Hardware volume controls in settings.

Basically this line has no effect.

I have added

permissions "Modify..." as well in Manifest

But i saw links in stackoverflow where this API works.

I don't wanna go to API

AudioManager.setStreamVol()....

as it sets stream vol for all apps

What is problem that this setVol API is not working??

Can anybody give a link to working sample??

Does http://stackoverflow.com/questions/5215459/android-mediaplayer-setvolume-function help this? — Karthikeyan, Jan 22 '15 at 11:24
@Karthikeyan thanks.But i have been through this link.I am using the same — Rohit Singhal, Jan 22 '15 at 11:29
Is any error or Warning messaging displaying in logcat. If yes, can you post it. — Karthikeyan, Jan 22 '15 at 11:32
No error and no warnings...can you give me any working sample using setVolumeAPI MediaPlayer Thanks — Rohit Singhal, Jan 22 '15 at 12:05
assign the StreamVolume to control the mediaplayer volume along with profile volume of that type — Santhosh, Jan 22 '15 at 12:32
@santhosh Then there is no use of setVolumeAPI of MediaPlayer , i can do the same via using API of AudioManager. — Rohit Singhal, Jan 22 '15 at 12:34

score 11 · Answer 1 · edited May 05 '16 at 12:47

11

I faced the same issue. I thought that if I use 0.5f as parameter, I could tell the difference. I tried 0.2f, still no difference. So I thought there was a problem indeed. I finally tried 0.02f just in case, and finally I had a lower volume.

Sample:

replace your

mediaPlayer.setVolume(0.90f , 0.90f);

with

mediaPlayer.setVolume(0.09f , 0.09f);

edited May 05 '16 at 12:47

Atiq

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answered Jun 29 '15 at 02:40

Georges

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13

you can also divide the current stream volume by `15f` like: `float volume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC) / 15f;` and then `mediaPlayer.setVolume(volume, volume);` – Pierre Sep 13 '18 at 05:29

score 2 · Answer 2 · answered Jan 22 '15 at 11:28

2

You must put the volume value between 0.0f and 1.0f. So 1.0f is 100% of the volume. Because of that your line has not effect.

answered Jan 22 '15 at 11:28

Lennon Spirlandelli

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I have tried .98f as well , but it still sounds as same vol as of STREAM_SYSTEM.If it is mute then no sound in played by player – Rohit Singhal Jan 22 '15 at 11:38
Try to do like this question http://stackoverflow.com/questions/6742174/controlling-volume-in-mediaplayer – Lennon Spirlandelli Jan 22 '15 at 12:21
Maybe it's missing – Lennon Spirlandelli Jan 22 '15 at 12:21

score 0 · Answer 3 · edited Jan 22 '15 at 12:37

AudioManager audioManager;
int actualVolume;
audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
actualVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, actualVolume + 1, AudioManager.FLAG_SHOW_UI);

The above code is taken from my working project, where it is used to increase the volume of the system (I used it for TV). You can use actualVolume - 1 to lower down the volume.

Android: MediaPlayer setVolume function not working

3 Answers3

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