SoundChannel:stop() don't stop always...

GregBUG · January 2012

hey guys i'm "fine tuning" my game
but some time SoundChannel:stop() dosn't stop the sound...

i double checked my code but when game ends i use SoundChannel:stop()

to stop music channel but sometime it's not stop... (i seems random)

but it happens only if compiled and installed and real device (android);

on pc or wifi under android players it works fine...

it's possible that the player and the compiled game behave differently?

has already happened to someone?

thanks.

MikeHart · January 2012

Sorry, i have no eclipse installed. Have to do this soon.

hnim · January 2012

i built and installed music player example, and it works fine.

GregBUG · January 2012

@hnim
yes me too...

the examples work fine.. also for me
it's in my game that don't work ...

hnim · January 2012

sorry, i cant get that. it works fine when i change scene or press back button.
how do you loop background music? i use sound:play(0, 1000), is that enough?

GregBUG · January 2012

yes i use the same...

(

GregBUG · January 2012

Ok. I tried to understand the problem ... because in my game some time sound do not stop...

i don't know if i misunderstood the use of play, stop and channel system
but....
if i use:

musicTrack = Sound.new("music.mp3")
musicChannel = musicTrack:play()

music start and play ok...

	musicChannel:stop()

music stop ok.

but if i start to play two or tree times the music channel with

 musicTrack:play()
 musicTrack:play()

the music start to play 2 times
but

 musicTrack:stop()

the music do not stop...

but if the channel is in play is not enough just say stop?

i coded a little example to test:

http://www.4shared.com/zip/bQxJiZcI/soundTest1.html

what do you think?

atilim · January 2012

If you're creating multiple channels, then you should keep the variables of them separately:

-- create 2 channels
musicChannel1 = musicTrack:play()
musicChannel2 = musicTrack:play()
 
-- stop these channels
musicChannel1:stop()
musicChannel2:stop()

If you are doing this:

musicChannel = musicTrack:play()
musicChannel = musicTrack:play()
 
musicChannel:stop() --> stop the 2nd channel
musicChannel:stop() --> does nothing because 2nd channel is not playing already

you only stop the 2nd channel.

On the other hand, after your bug report, we've improved the mp3 playing on Android when there are multiple mp3 files loading simultaneously. And after this fix, I haven't seen any mp3 playing issues with your game. Thank you.

(I cannot connect 4shared.com, you can upload it somewhere else?)

gorkem · January 2012

@atilim sending you the zip file now

atilim · January 2012

thanks

GregBUG · January 2012

thanks guys...

i don't know why but i was thinking that

musicChannel = musicTrack:play()
musicChannel = musicTrack:play()
 
musicChannel:stop()
musicChannel:stop()

refer to the same sound channel...
and that recalling musicChannel = musicTrack:play()
don't create a new sound channel but stop the previous and restart!!

but not why passing the channel to play() stop() etc. to avoid unwanted multiple channel play?

like:

musicTrack:play(musicChannel)
musicTrack:stop(musicChannel)

?

atilim · January 2012

Oh I see

But you can always stop the previous one and start playing again:

musicChannel = musicTrack:play() --> start playing
musicChannel:stop()              --> stop the current playing channel
musicChannel = musicTrack:play() --> start playing again with the new channel

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