[you can see this in action in the image on the right]
However, there is one crucial musical benefit to this method:
There is no delay between what I do on the screen and what I hear (and what students see when they are looking at the data projector). I can press a record button and accurately record a melody or rhythmic part in time to the metronome click.
Wireless projection: the deal-breaker
That brings me to the main drawback of the wireless options:
There is a noticeable delay between what you do on the screen and what is seen and heard via the data projector. This delay is known as latency.
You may have experienced latency in a desktop sequencing or notation program already – you click the record button and try to play your part, but when you press a key on your MIDI keyboard, there is a delay before the sound is heard, and before the note appears on the screen. It’s frustrating like you wouldn’t believe and makes you feel and sound like a terrible musician! Rhythms are notated later than expected (sometimes a full quaver late) and no matter how hard you try to play ahead of the click, it simply doesn’t help.
Avoiding latency is a deal-breaker for me.
During the majority of my iPad workshops I’m showing creative music apps which involve playing in time to the beat, so latency is not an option.
It doesn’t mean you need to be tethered to the data projector all the time. The wireless option is ok when you’re doing non-performance activities like showing videos or sheet music.
The bottom line
The bottom line is – have both options available.
Buy the appropriate adaptor for your iPad and make sure the VGA cable is accessible and long enough (a couple of times I’ve had to cut cable ties in order to access a reasonable length of the VGA cable at a school!).
When to use the plug-in option
Use the plug-in option…
- When you are recording anything in time to a metronome
- When you are performing anything rhythmic
- When you are playing an ipad instrument over a backing track
- When you are showing ear training apps which require you to do something in time to a beat (ie. Demonstrating a rhythm training app)
Basically, any activity that involves performance and playing in time.
When to use the wireless option
- When you are showing student work: video or audio that has already been completed
- When you are playing a YouTube video for the class
- When you are displaying sheet music
Basically, when you are doing an activity that does not involve performance and playing in time.
A word about sound
When plugging in to the VGA cable, you will also need to plug a speaker of some sort in to your headphone port on the iPad. Many music classrooms have speakers installed in the room so that you can plug your laptop or desktop computer in.
Use those ones if you can – unplug them from your desktop or laptop and plug straight into the iPad. Again, lead length can sometimes be an issue (and/or there are those pesky cable ties that lock everything down!). Replace a short lead yourself with a nice long one, or speak to your IT person.
The wireless options include sound – kind of. If you use Airserver or Reflector, you are essentially projecting your iPad on to your computer screen, so in order to amplify the sound, your computer will need to be plugged in to some decent speakers.
The interactive whiteboard question
One of the most frequently-asked questions in workshops is – can I use iPad apps on my interactive whiteboard (IWB)?
Well…yes and no.
At this time, there is no way to interact with iPad apps by touching the IWB screen. That is, you can display your iPad screen on your IWB but you cannot walk up to the board, touch the screen and operate the app.
When you plug your iPad into the IWB you are essentially just using the IWB as a large, expensive data projector. In order to interact with the app (i.e. make it work) you or your students still need to touch the iPad screen.
I hope that helps clear up some of the confusion that often surrounds this subject!
When buying an iPad VGA adaptor make sure you get the right one for your iPad model:
1. iPad 4th generation and later, plus the iPad Mini require the Lightning-VGA adaptor
2. iPad 3rd generation and earlier require the 30-pin-VGA adaptor.
More iPad Music Project Ideas!
iPad Projects for the Music Classroom includes 22 step-by-step projects you can use straight away with your music students. Take the guesswork out of choosing apps and discover how you can use iPads in an engaging and meaningful way.
Click on the image below for more information.