Playing sound with labview

I have saved some sound clips into a matrix. Now I want to play the
samples back (there are 10 of them) when I press the respective button
(button 1 for sound 1, button 2 for sound 2, etc). My problem is I can't
get the sounds to play when I press the button. I've tried a case
structure that would select the sound, but I also tried to let the sound
play (flipping a boolean). I can't get it to work. Does someone have a
VI that I can get ideas, or does someone want to chit-chat?
*peace*
DG
[email protected]
Sent via Deja.com http://www.deja.com/
Before you buy.

Hi Dorian,
I'm working on something similar. Have you looked at the telephone
dialer example that comes with labview (5.0 and 5.1)? That's a pretty
decent start.
Does someone have something better?
Cid
In article <87di90$dmv$[email protected]>,
Dorian Grey wrote:
>
>
> I have saved some sound clips into a matrix. Now I want to play the
> samples back (there are 10 of them) when I press the respective button
> (button 1 for sound 1, button 2 for sound 2, etc). My problem is I
can't
> get the sounds to play when I press the button. I've tried a case
> structure that would select the sound, but I also tried to let the
sound
> play (flipping a boolean). I can't get it to work. Does someone have a
> VI that I can get ideas, or does someone w
ant to chit-chat?
>
> *peace*
>
> DG
>
> [email protected]
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
>
Sent via Deja.com http://www.deja.com/
Before you buy.

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aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: A2G [AuzenTech X-Meridian 2G], device 0: Multichannel [Multichannel]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: A2G [AuzenTech X-Meridian 2G], device 1: Digital [Digital]
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Subdevice #0: subdevice #0
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Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
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Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
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card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
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0 [A2G ]: CMI8788 - AuzenTech X-Meridian 2G
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1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xfa080000 irq 17
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0 'Midi Through Port-0'
client 16: 'AuzenTech X-Meridian 2G' [type=kernel]
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speaker-test 1.0.28
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
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Buffer size range from 2048 to 16384
Period size range from 1024 to 1024
Using max buffer size 16384
Periods = 4
was set period_size = 1024
was set buffer_size = 16384
0 - Front Left
1 - Front Right
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USER@PROBLEM ~ % sudo systemctl status fluidsynth.service
● fluidsynth.service - FluidSynth Daemon
Loaded: loaded (/usr/lib/systemd/system/fluidsynth.service; disabled)
Active: active (running) since Sat 2014-10-04 10:11:18 UTC; 6s ago
Main PID: 1017 (fluidsynth)
CGroup: /system.slice/fluidsynth.service
└─1017 /usr/bin/fluidsynth -is -a alsa -m alsa_seq -r 48000 /usr/s...
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Hint: Some lines were ellipsized, use -l to show in full.
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Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
ALSA lib pcm_dmix.c:989:(snd_pcm_dmix_open) unable to create IPC semaphore
Playback open error: -13,Permission denied
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client 14: 'Midi Through' [type=kernel]
0 'Midi Through Port-0'
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0 'AuzenTech X-Meridian 2G MIDI'
client 128: 'FLUID Synth (1017)' [type=user]
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Last edited by Janusz11 (2014-10-04 08:26:54)

Thanks. I've set Fluidsynth up the way it is described in the wiki (FluidSynth). If I'm not mistaken it is already started with the "-a alsa" option through the config file (SYNTHOPTS="-is -a alsa -m alsa_seq -r 48000" ).
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Product Support Engineer
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Attachments:
sound_snippet.png ‏14 KB

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im new to java and i was practicing playing sound in a swing application but the problem is that when i press the play button no sound is played...here is my code
import javax.swing.*;
import java.applet.AudioClip;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.MalformedURLException;
import java.net.URL;
import java.io.File;
public class JukeBox extends JFrame {
    private JLabel label;
    private JPanel panel, buttonPanel;
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    private JButton play, stop;
    private URL url1, url2, url3, url4, url5, url6;
    private AudioClip[] musicList;
    private AudioClip current ;
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        musicList[0] = null;
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        musicList[3] = JApplet.newAudioClip(url3);
        musicList[4] = JApplet.newAudioClip(url4);
        musicList[5] = JApplet.newAudioClip(url5);
        musicList[6] = JApplet.newAudioClip(url6);
        label = new JLabel("JAVA JukeBox", JLabel.CENTER);
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                , "bitch please II"
                , "flutte, harmonica, mambo"
                , "jungle"
                , "spacemusic"
                , "trippygaia"};
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        stop.addActionListener(new ButtonListener());
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        buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.X_AXIS));
        buttonPanel.add(play);
        buttonPanel.add(stop);
        panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
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        panel.add(Box.createRigidArea(new Dimension(0, 5)));
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        panel.add(Box.createRigidArea(new Dimension(0, 5)));
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    private class ListListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            if (current != null) {
                current.stop();
            current = musicList[playList.getSelectedIndex()];
    public static void main(String[] args) {
        setDefaultLookAndFeelDecorated(true);
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        jb.setVisible(true);
        jb.setResizable(false);
}can u please tell me whats wrong with my code coz i cant hear no sound when i press the play button and can u please tell me why i cant simply put the file name in the URL instead of the complete path although the files are in the same directory of the source code and can i play mp3 using this little program ???
plz help...im a newbie so plz explain as much as u can...

After
musicList = new AudioClip[7];
        musicList[0] = null;
        musicList[1] = JApplet.newAudioClip(url1);
        musicList[2] = JApplet.newAudioClip(url2);
        musicList[3] = JApplet.newAudioClip(url3);
        musicList[4] = JApplet.newAudioClip(url4);
        musicList[5] = JApplet.newAudioClip(url5);
        musicList[6] = JApplet.newAudioClip(url6);initialise the variable current with
current = musicList[1];or similar because the AudioClip current always == null in your code so your listener blocks don`t execute.
regards

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