How to solve the audio delay issue on some specific devices?

In my game, I need to have shoot, hit, blast sound effect, and they are all less than 1 seconds. However, when the sound plays, it have lag on some specific devices.

HTC One M8: 0.4s lag <br/>
Samsung Galaxy S6: 0.4s lag <br/>
Samsung Galaxy S3: 0.4s lag <br/>
Samsung Galaxy Tab 3: no lag <br/>
iPad Air: no lag<br/>

Any idea how to solve the problem?

I already tried the following:

AudioSettings, best latency; <br/>
All audio data are wav; <br/>
All audio data are imported and compressed as PCM; <br/>
All audio data are "decompress on load"; <br/>
AudioSources bypass all the effects; <br/>
There is a Android latency plugin, seems not working on new Unity, there is no sound at all; <br/>
There is another audio plugin, which have the same problem.

I have asked on the communities in different places, and not a single answer is posted.

 

I would like to know the answer as well. Android platforms always have this complaint.

 

Do you have this problem only on the first fire of the sound, or always?

 

Yeah, and not only in Unity. I've spent literally hours with Javascript trying to get web pages to line up sound events properly. The answer with webpages seems to be to "preplay" the sound for like 1/100 of a second before you start, just so Android initializes it.

So far, my attempts to get sounds working on Android on the initial startup of Unity have failed, though. There's always about a 1/2 second lag the first time my starting music plays the first time.

 

Always. No matter how many times I clicked, it's the same lag.

 

I forgot to mention something that may help. Make sure all your sound effects are wav files, not mp3's. "Starting to play" an mp3 takes about 120 times longer on average.

 

All the audio datas are wav file, not mp3 vorbis or other compressed data.

 

Ok. I haven't seen this problem on our Android games for some reason.