Producer/Consumer - realtime scenario with a specified interval

Question

Usecase:

1.Have a queue which is getting filled asynchronously from another source.

2.Need to consume the data from that queue one after another. There is a usecase(play a sound) for which data extraction from the queue should happen in every X sec when there are multiple elements in queue.

Below is a sample code snippet for that:

    Queue<Wrapper> q = new ConcurrentLinkedQueue<>();
    // filling up queue
    void add(A obj) {    
    synchronized (q) {
      q.add(obj);
      q.notify();
      }
     }

Below is the consumer code for extracting the data:

    class Consumer extends Thread {
    @Override
    public void run() {
        while ( true ) {
            try {
                synchronized ( q ) {
                    while ( q.isEmpty() )
                        q.wait();

                    // Get the  item off of the queue
                    A w = q.remove();
                    // Process the work item
                    playSomeSoundForXsec(w);
                    Thread.sleep(3000);
                }
            }
            catch ( InterruptedException ie ) {
                break; 
            }
        }
    }

}

Issues with the above code:

1. Static code analysis error: "wait(..) should be used instead of "Thread.sleep(..)" when a lock is held

2. When continuous events are getting filled to the queue, sound stops coming out.

what will be better way to handle the above usecase.