How to set different sounds to different notification?

Question

I want to set a different notification sound to a notification depending on it's content. I have set a working sound if the title of the notification contains number "1", "2", or "3". However, the sound must be different if the title contains "acknowledge", but it's not working, the alarmsound is still the one ringing.

Uri defaultsound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    Uri alarmsound = Uri.parse("android.resource://" + getApplicationContext().getPackageName() + "/" + R.raw.siren); //ContentResolver.SCHEME_ANDROID_RESOURCE +

    String NOTIFICATION_CHANNEL_ID = "com.example.bantay.bantay";
    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);

    notificationBuilder.setAutoCancel(true);
    notificationBuilder.setPriority(Notification.PRIORITY_MAX);
    notificationBuilder.setDefaults(Notification.DEFAULT_ALL);
    notificationBuilder.setDefaults(Notification.DEFAULT_VIBRATE);
    notificationBuilder.setDefaults(Notification.DEFAULT_SOUND);
    notificationBuilder.setWhen(System.currentTimeMillis());
    notificationBuilder.setSmallIcon(R.drawable.marikinalogo);
    notificationBuilder.setContentTitle(title);
    notificationBuilder.setContentText(body);
    notificationBuilder.setVibrate(new long[]{500, 1000, 500, 1000, 500, 1000});

    if(title.toLowerCase().contains("1")){
        notificationBuilder.setContentIntent(pendingIntent);
        notificationBuilder.setSound(alarmsound);
    }
    else if(title.toLowerCase().contains("2")){
        notificationBuilder.setContentIntent(pendingIntent1);
        notificationBuilder.setSound(alarmsound);
    }
    else if(title.toLowerCase().contains("3")){
        notificationBuilder.setContentIntent(pendingIntent2);
        notificationBuilder.setSound(alarmsound);
    }
    else if(title.toLowerCase().contains("acknowledge")){
        notificationBuilder.setContentIntent(pendingIntent3);
        notificationBuilder.setSound(defaultsound);
    }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "Notification", NotificationManager.IMPORTANCE_HIGH);

        AudioAttributes audioAttributes = new AudioAttributes.Builder()
                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                .build();

        notificationChannel.enableLights(true);
        notificationChannel.setLightColor(Color.RED);
        notificationChannel.enableVibration(true);
        notificationChannel.setVibrationPattern(new long[]{500, 1000, 500, 1000, 500, 1000});

        if(title.toLowerCase().contains("1")){
            notificationChannel.setSound(alarmsound, audioAttributes);
        }
        else if(title.toLowerCase().contains("2")){
            notificationChannel.setSound(alarmsound, audioAttributes);
        }
        else if(title.toLowerCase().contains("3")){
            notificationChannel.setSound(alarmsound, audioAttributes);
        }
        else{
            notificationChannel.setSound(defaultsound, audioAttributes);
        }
        notificationManager.createNotificationChannel(notificationChannel);
    }