private boolean evaluateSoundClause(String address) {
		if (address == null)
			return false;
		if (FileUtilities.isRelative(address)) {
			Object o = model.getProperty("url");
			if (o == null) {
				out(ScriptEvent.FAILED, "Codebase missing.");
				return false;
			}
			address = FileUtilities.getCodeBase((String) o) + address;
		}
		playSound(address);
		return true;
	}