Looping sounds

[ykhun]

Hi all,

I tried playing a sound file (wav or mid) in the looping mode. Found that the sound gets cut with a short pause after each loop before resuming from the start. The repeat mode is being used for things like ambient sound and engine noises where i only have a short sound file which i hope to repeat infinitely but the short pause after each loop is making it impossible to do so.

Does any1 have any ideas how i could circumvent this problem?? The looping noises are really just repetitive noises and i hope to keep them as short as possible and use the repeat mode to loop the sound for long periods.

Thanks.

[navjotsingh1979]

hi
Are you developing this application in J2ME or symbian OS compatible C++.

Can you elaborate over the steps you are using in replay , then I may suggest you th solution .

I have developed application of same type with J2ME and C++ both.

bye

[ykhun]

Since this forum is Mobile Java, i'm of course developing on J2ME platforms.

I'd tried a few ways to tackle this problem, like using multiple Players, multiple threads, etc etc. All works very well on emulators, but on the actual devices, it is another story. Memory fetch time, device switch penalties are very real problems on actual devices and affects performance greatly...

[navjotsingh1979]

Hi
You may try following scheme

when your media playing ends you get notification in method

public void playerUpdate(Player player,String event,Object eventData)
{

if (event == PlayerListener.END_OF_MEDIA)
{
// start player again
try
{
yourPlayer.start();
}
catch(Exception e) { }
}
}

yourPlayer is Player object and a member of your class.

This is gives very less/negligible delay , instead of using multiple threads and player objects.


Hope this may help you out.
Cheers
Navjot Singh

[ykhun]

I got the pauses inbetween loops even when i'm just playing the sound in "Looping" mode. Does the notification method carry a lower overhead than simply letting the sound playing in a looping manner??? If u had tested it before, please let me know the results. Thanks.

[navjotsingh1979]

Hi
With looping what do u mean exactly.
If you mean to invoke play command on player in a loop ,
for or while loop , then my friend your are adding a lot of overhead on the mobile ,

try with the method which i suggest in the above reply coz it takes minimum overhead and introduces least delays in playing a sound file in loops.


Hope this may hekp you out .

Cheers
Navjot Singh

[ykhun]

Hi, thanks for replying.

I meant to play the Player objects in looping mode. Shouldn't that incur the least overhead since its directly supported by the J2ME? No no no, nothing to do with while loops at all :-)

[lavabtan]

I have been getting this issue too. When I use the setLoopCount(-1) method, I can't get a smooth loop.
Has anyone been able to solve this issue?

[ishay2b]

Hi,

I can see the last post was few years ago.
Has anyone found a solution for this basic problem?
All we want is to play a wav file in a loop without intervals between each loop. Anybody has an answer?
I tried the above suggestion but still a big delay is between each loop.
May be Nokia can answer this?

Thanks,
Ishay