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Any developer here who wants my money?
I want to make good sounding video tutorials quickly. Two obvious features would make that really really easy with my iphone:
- the ability to start stop the camera via midi. This way, I could syncronise the audio recording on my Mac easily with the video. I would probably still have to move the audio around a few samples in Reaper but midi would make it possible to do several takes without having to get up and operate the camera by hand. And yes, I have Camera plus and its remote camera feature is nice but requires too many steps to setup every time and then I still can't syncronise it with my audio recordings.
- Of course, everything could be made even easier if the app had InterApp audio. Then I could do everything on the iphone. I imagine shooting high def video is a rather processor/ram intensive task, so that might run the danger of choking the device. But through a good mic and interface even a little compressor and an eq could probably be enough to make it sound better than 99.9% of the stuff on YouTube.
That's it. Make a simple Camera clone and add a midi implementation and I'll buy it in a second. Add InterApp Audio / Audobus and you will become a YouTube hero. 
Comments
Quicktime on Mac will allow you to capture your iOS device screen and capture your voice (via in-built or external mic on your computer) at the same time.
Works well for me.
Are you offering to fund the development?
http://www.fostexinternational.com/docs/products/AR-4i.shtml
Or just use a video editor to line up the audio with video
Yes, but as I wrote, I want to use the iphone camera
I'd retroactively fund it by buying it ;-)
My purpose would be instructional guitar videos. There are approximately a billion people doing all sorts of instructional videos or one-man/woman videocasts. I imagine all of them having to put their instrument/tools/whatever away, get up, get behind the camera and push buttons, every time they mess up a take. I imagine all of them cursing at the inconvenience just like I am. I imagine they would all love a comfortable, not dumbed down way of remotely operating their cameras and being the kind of diy-types they are they wouldn't be afraid of learning how to use midi if they didn't already know. But then again, I always seem to have all those brilliant ideas that noone else cares about
I have plenty of mics and three audio interfaces already. I also know how to line up sound and video. All I want is for the process to be less painful. Allowing for minimal audio processing inside the camera app would alleviate the need to record audio seperately while still getting really good quality audio usable for everything but pro purposes.
I don't get that.
Unless you bring in ~3000 other buyers you're hardly funding it, I reckon.
Lol!
But seriously, isn't some kind of crowdfunding possible for supporting development of wanted/needed apps, with definite finantial and timetable goals? I suppose quite a few people would contribute to fund a Melodyne-style app for iOS, or an EZDrummer-style app.
you may consider that Melodyne is built on sophisticated algorithms that took about 20 years to get to the point where they are today
Calculation in such application is massive, way beyond current CPUs in mobile devices.
Not accurate, @Telefunky: I use to have Melodyne on an AMD 1900+ single core computer with 128mb of RAM! running Windows XP, which I still have, and which actually runs (and benchmarks) way slower than my iPad Air.
@Axxx I have found that there is no easy solution. I have tried everything from my iPhone 5S to using quicktime to record my iPad screen to using my Canon Powershot Elph 300HS(which is an awesome little camera for video). All require post processing, audio syncing, getting interrupted by numerous phone calls while your recording, running out of storage because money doesn't grow on trees and buy the 16gb iPhone.
The easiest thing I have found is using Open Broadcast software on my Mac, or PC or Linux(which I have not tried)
https://obsproject.com
It allows me to record the screen, add video via webcam, use the lightning cable to record my iPad screen using quicktime. Plus you can use external interface with it. I use my Akai EIE, have my mic plugged into one and I run the audio out of my iPad into channels 3 and 4. OBS captures everything, seems to be in sync as well.
I don't think you can use MIDI but you can setup hot keys using a standard keyboard. so you map record, switch between different scenes and stuff.
Below is a link to one of my videos that I recorded with it. No post editing. Just simply hit record(several different times before I got it right all the way through) and then straight to youtube.
I would love to have a video recording app that supported IAA or Audiobus as well.
P.S.: and EZDrummer on a friend's studio which ran Sonar on an old AMD athlon II X2 7750 with 512mb of RAM that I bet is slower than my iPad Air as well (the Air2 and the Pro can definitely beat it, since they have Core i-performance).
just a short response not too extend the topic further
I don't have Melodyne, but software with a similiar approach and guessed from the vocal extraction stuff... but: if part of the code is optimized (or even assembly) that can result in 20 to 50 times higher performance - regardless of OS or CPU.
Nice to know: so It's a software challenge. A tough one: Assembly is not for the faint hearted!
Assembly in itself is likely not the biggest issue (most of my PC software had full assembler audio engines). Portability is a bigger problem. For example: if you are running your app in the XCode simulator (e.g. to test on devices you don't own) it needs intel assembler because it's running on your Mac. But when you decide to run your app on an actual device it needs ARM assembler (there are various different ARM versions still around, and you never know what Apple will introduce 6 months from now). That's simply not practical in real world development situation and impossible to maintain.
Besides, today's compilers are so good at unrolling code loops, and using processor specific SIMD instructions that you can get pretty close using regular C code instead of assembler. Seriously, it's hard to beat the GCC compiler with assembler, especially when you feed the linker with profiler-data so it can hint branch predictions etc.
But yeah.. it's certainly a software challenge and there are no doubt lots of clever tricks at work inside the Melodyne algorithm
Sony QX10 camera doesn't use your iphone cam but it does have an app to use its screen to run the cam remotely.
https://www.amazon.co.uk/dp/B00EU89FI6
I've been working on video for a different app; might be able to migrate some code around to make something like this happen. Not hard to do, I don't think, but I'd doubt that I'd sell more than a couple of dozen copies. If I price it at $1000, everyone here would buy it, right? ;-)
Thanks for all your responses, especially the on-topic ones ;-)
Btw, my intention was more to put an idea out into the open to see if there were more people interested in it. Unfortunately, serious funding on my part is out of the question at this time due to lack of... uh, funds.
@gmslayton This looks and sounds really good. I'll have a look at open broadcast, although my use case would be rather different.
But look, we're two already! 2998 to go. Hmm, I think I'll bump this thread until we have reached that number ;-)
So, who else would love making (semi-) professional instructional videos in a way that saves about 70% of the time and hassle usually involved in doing this? Or does somebody know another forum where I could take this idea?
I imagine there is plenty of example code available for using the camera, incorporating midi and InterApp audio. All I would need would be a combination of the three.
As I wrote in my original post, I already have an app that can control my iphone camera from my ipad (camera plus). This is infinitely inferior to a much simpler midi solution which would be a) a standard and b) would make it possible to control other things at the same time, e.g., my Daw running on my Mac (or any other computer!)
Thank you for your response @SecretBaseDesign. Well, 1000 coins would be a little steep, indeed. How hard would it be to incorporate a few standard audio tools (compressor, eq) to add a little bit of professional touch to the recorded audio? Would that choke the cpu?
Seems to me like MIDI control is overkill for the one person/one camera set up. Why not something like 'Hey Siri, do another take?'. I'm sure there are 400 existing video capture apps out there and at least one of them would be be interested in implementing a request for voice control (siri need not apply).
Once you're rolling your new take, make a short, loud click sound with yer tongue and just line up the peaks from your 'good' audio with your camera audio like it's 1934.
And using a second ios device to control the first one using propriatary technology that needs several button presses on each device to setup every time is not?
More like: "Hey Siri, do another take! Oh, and while you're at it, could you tell other Siri on the other computer to tell Reaper to start recording?.... NO, Siri on the Mac, I wasn't talking to you, I was talking to Siri on the iphone. Please, Siri 1 and 2, stop talking all at the same time!!!"
I just love this new and improved world where Smart devices make everything sooooo easy as long as you don't try to do anything AppleGoogleMicrosoft hasn't thought of before. In my case, that would be..., uh, about 99% of what I do with computers.
But I think I will ask some of the video app developers if they have heard of this new technology called MIDI that is much simpler and much faster and much more flexible than Siri. Let's see how that goes.
But it's 2016
@Axxx Maybe reach out to MoviePro or ProCam. ProCam updates fairly often and MoviePro as been updated at least once this year, which is better than some of our favorite music apps. So there could be a chance.
I can reach out to them as well. I would also want the ability to use a multiple audio input situation. Currently, neither will recognize channels 3 or 4 on my Akai EIE. Which would be the perfect setup, iPad stereo audio into channel 3 and 4, my condenser mic, mono into input 1. Audio and video would be in perfect sync.
I guess another solution for that would for me to get a cheap, small behringer mixer, which only has a stereo out via usb.
Better yet, get myself a Zoom H5 or H6. Use the capsule for speaking and then the audio in from my iPad as a stereo in.
All possible (and of course, I'd probably just put the app up for free, because I'm doing most of this for fun, and there's not much money in apps anyway). Just a question of how much time I want to sink into something, and what other fun things there are to work on. A quick-and-dirty camera toggle is easy, but if it turns into a one-more-thing app, that's much harder.
For fancy audio processing, though -- I do everything on the desktop, and it seems like a fools errand to try to compete with that using an iOS device. I've always seen iOS as a great place to build MIDI controllers, or as a portable sketch pad, but the heavy lifting for me is always with Logic and Final Cut.
@SecretBaseDesign Would it be easy to make a video recorder, Audiobus compatible? As in the output slot? Then we could use all of our awesome FX apps to process the audio and in the end, get a clean video, with great audio, already synced and just a simple upload.
I will say, I like that ProCam records directly into your Photo Library but then again, I like Movie Pro, which records into the app but then gives you the ability to move it directly to your photo library.
I'd happily pay 20 Euros for it. And I can't imagine there wouldn't be other people who would do the same once they noticed how incredibly practical this is for certain use cases.
I suspected that there isn't much money in apps. That's one of the reasons I gave up on my messenger app that uses finger-tapped rhythms instead of text idea years ago
The more important reason was that I was way out of my depths being the dilletante hacker that I am.
Of course, one has to believe in an idea to justify the time spent. And I get it that this would be a niche product. But there are a lot of people doing YouTube videos. And currently, you can do that either really fast and easily but with sub par audio or you can try to emulate a professional production which is a hell of a lot of work. This would cover the middle ground as far as the audio is concerned and the midi part would be by far the most flexible remote control available. It would totally stand out among all camera apps.
Excuse my sales talk. I got excited
Btw. I'm AXL from Fawm
btw I recently found it totally inconventient to record a guitar performance by an IOS device (internal mic) mounted to a mic stand - in whatever direction you turn it... it's always the wrong one...
So there is in fact more need for a controller like this.
Midi isn't such a bad choice either, because it can be passed on to other devices.
(the more obvious Bluetooth numeric keypad as a cheapo trigger would be paired to only one)
Dang -- AXL from FAWM? Coding for family is a priority, so I'm on it! (I'm Swampjaw -- but you might have known that!)
@SecretBaseDesign. I knew.
And I also promise I'll make a song usung VoxKit next February. Didn't get to it last time despite my announcement.
I'll pm you my email address. You have a true fan!