QML SoundEffect Element is too slow!

[whiteF]

hi,
i have a mouseArea in my QML file with an onPressed function which calls a mp3 file.
The mp3 file is playing correctly, but if i touch the mousearea again during it play the file, it's just waiting till the end of the soundfile and plays it again.

For example: i have a 1 second mp3-file.
if i push a mousearea 10 times with my finger during a second, the 1 second mp3-file is repeating... 10 seconds!!!
the sound should appears when i press the mousearea without to wait till the end.

can anybody help?

best regards...



here a short snippet:

MouseArea {
                        id: ma0
                        x: 0
                        y: 0
                        width: 460
                        height: 200
                        onPressed: {
                                        play_click.stop()
                                        play_click.play()
                        } }

        SoundEffect {
                 id: play_click
                 source: "res/click.MP3"
                 volume: 1.0
             }

[izinin]

Hi

It is obvious sound playing functionality cannot react immediately on play and stop commands because it runs in a separate ordinary priority thread. I think 1 second is close to that delay but that value is device dependent. You cannot fix that. Alter your app implementation behavior that after mouseArea clicking UI is blocked for 1 second -- such way you eliminate that problem : user presses 10 times during 1 second and then the app goes mad for 10 seconds.

[whiteF]

now i try “Qt Game Enabler API”.

but there is my next problem.
I integrate the “Qt Game Enabler API” from this site Using the Audio Plugin [projects.developer.nokia.com]

But on pushing the mousearea i dont hear anything on my device.
I think i have a “Source location” problem because the QML Audio Test Project [projects.developer.nokia.com] works fine.

QML Soundeffect Location:
—————————————
The source of a QML Soundeffect i get at his
location: “C:\QtSDK\Projects\PROJECTNAME\PROJECTNAME\qml\PROJECTNAME\res\reload.wav”
calling in QML: source: “res/reload.wav”

QML Audio Plugin Location:
—————————————
The source of a QML Audio Plugin i get at his
location: “C:\QtSDK\Projects\PROJECTNAME\PROJECTNAME\qml\PROJECTNAME\res\reload.wav”
calling in QML: source: “res/reload.wav”

A Snippet from my PRO file:
—————————————

Add more folders to ship with the application, here
folder_01.source = qml/PROJECTNAME
folder_01.target = qml
DEPLOYMENTFOLDERS = folder_01

i cant get it work… how i had to declare the source file?
maybe
source: “:/audio/reload.wav” = dont work too

[izinin]

Hi

“:/audio/reload.wav” does not work because this is a reference to record in resource without prefix. It seems your project does not use application resources packaged in qt project resource file (.rsc)

If you don't use qt resource -- perhaps you have to provide absolute file-path to

AudioBuffer *AudioBuffer::load(QString fileName, QObject *parent)

via source property

Try

        
AudioBuffer {
...........
            source: Qt.resolvedUrl ("res/reload.wav")
..........

[whiteF]

thanks but:

won't work:

source: Qt.resolvedUrl ("res/reload.wav")

now i try to integrate that *.wav in a resource file (with the Wizard "Add File" ...):


Snippet: *.pro file

RESOURCES += \
    MyResources.qrc

Snippet: MyResources.qrc:

/audio
--audio/reload.wav

won't work - no audio - Qt Gameenabler Audio Plugin:

        AudioMixer {
            id: mymixer
            absoluteVolume: 1.0
            //enabled: true

            AudioBuffer {
                id: clickSound
                source: "qrc:/audio/reload.wav"
                volume: 1.0
                speed: 1.0
                //mixer: mymixer
            }
        }

won't work - no audio - QML Audio Element (Soundeffect):

SoundEffect {
                 id: play_Schuss
                 source: "qrc:/audio/reload.wav"   // incl. "qrc" // excl. Prefix
                 volume: 1.0
             }

SoundEffect {
                 id: play_Schuss
                 source: "qrc:/audio/audio/reload.wav"   // incl. "qrc" // incl. Prefix
                 volume: 1.0
             }

SoundEffect {
                 id: play_Schuss
                 source: ":/audio/reload.wav"   // excl. "qrc" // excl. Prefix
                 volume: 1.0
             }

SoundEffect {
                 id: play_Schuss
                 source: ":/audio/audio/reload.wav"   // excl. "qrc" // incl. Prefix
                 volume: 1.0
             }

now i have a resource problem?!!?!?!
this qt is awesome...

[izinin]

Hi,

SoundEffect does not work from resource file --- see details in QTBUG-9253 and QTBUG-23831 : SoundEffect element is a wrapper around QSound, which cannot access sound files from Qt Resource File System (Mentioned in the Document) : Note that QSound does not support resources. This might be fixed in a future Qt version.

As you see nothing is easy on Qt -- if you want to complete your project you have to find a workaround .... sorry

As for GEnabler demo it is working. Try to substitute demo resources with yours , perhaps you miss something in the implementation.