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Sync'ing Field Recordings in iOS?
Hey, I was thinking of going to some location or space with interesting sound sources... placing several varied recorders in different positions, then sync'ing them all up later in a DAW for mixing.
I know you can sync up dual audio recordings fairly easily for film/video when using FinalCutProX, but is there a way to take several audio field recordings from the same location, made at the same time period, and then sync them all up to play/mix in-time via iOS app?
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I know you can kinda fiddle your way, nudging until they are all in sync manually. But there used to be a plugin or app on the Mac where you could take multiple independent recordings from the same location and time, select them all at once, the click a button and they'd all snap into sync. This capability was eventually built into FCPX.
Just curious if something like that exists for iOS, or possibly a feature built into one of the apps I might already own, like Auria Pro?
I would be very interested to know about a way to do that,too!
it's a simple function if all files are known to have the same source.
But often not appreciated because it kills signal runtime that defines space.
For short periods of time it would most likely work with non-clock-synced converters.
The longer the duration, the more the tracking devices will (inevitably) drift from each other, which may produce significant phase interaction between the parts.
There are in fact quite some plugins for such auto-alignement (in VST), but I don't remember brands atm ...
Not a big deal, I can do it well enough old scroll manually with a clapper sync method.
But, there used to be easy, simple apps to do this on the desktop, still are I believe.
For example, if I had 4 recordings going in different locations in a park, the recordings aren't started all at the same time, and a car horn blasts... I'd like to sync all 4 to that blast. I know I can eye-ball it waveform on a DAW timeline. But, it'd be cool if I could simply select them all, click a button and they all snap into sync automatically.
This is possible/easy on the desktop. Was just wondering if there was something similar for iOS.
In my experience, I found that the manual/clapper way is the more reliable and less time consuming since most of the times any automation(which doesn't rely on a common timecode) needs to be adjusted.
A good thing could be using a common time code to all devices(and the apple internal radio clock is a good source)so you will also sort out some issues related to the speed of sound
I'm beginning to think the same. I suppose automatic way is really only potentially beneficial if you're trying to sync a bunch of different sources to a video dialogue track.
Yup. And still the computer can't beat the human on this. It Is like tuning a piano: you set the 440hz A then the best results is given from a well trained ear rather than a hertz perfect tuning.
What about Audreio? If there is wifi, they say it can stream audio to another device, and record it. Where it gets interesting, is the "safe record" function, which, if I understand them right, caches the recording locally, and can catch up with the data after the recording is done.
A friend that teaches video production was showing his students how to record better audio for interviews and such, by having the subject have a lapel mic connected to their iphone in their pocket recording their voice. They collect the recording and sync it up later, but something like the Audreio (if it does what it promises) would be a great, cheap way to fake a wireless mic.
Actually not so cheap if you have to buy the phone:) but definitely a great idea
why can't we delete posts, changed my mind about what I was going to post being helpful....
Interesting for Audreio idea, but I wasn't thinking of trying to sync video for dialogue. Unless I've misunderstood. I only referenced syncing video dialogue because that's when an automatic sync app for various sources in the same locale, comes in handy.
There was a scenario yesterday that I imagined setting up where it'd be difficult to get a clapper or whistle sound to sync to. I was at a grocery store patio that has a cafe/bar connected, and a small park and playground for children.
I imagined recording the sounds of shoppers chatting and entering the grocery store with shopping carts, and recording dialogue chatter of people on the deck patio, and recording people at the connected cafe/bar, and people having a small party in the adjacent small park, and children on the playscape, and the Sunday afternoon band setting up on the patio.
All of these sources recorded separately with separate recorders and different mic types. Then, putting all of the recordings layered on a timeline in a DAW, syncing them all up in time and mixing a soundscape of the whole scene while selectively bringing up specifically focussed recordings to direct listener attention to within the scene.
It would be different an very awkward to make a sound loud enough in that public setting to serve as a clapper synce reference.
I guess the only solution I can think of is what @mschenkel.it mentioned by having some kind of common timecode between all he different recordings. Just not sure how you could do that.
Making a loud enough whistle blast that could be picked up by all the devices could work, but it would also be pretty impractical, disruptive and distracting in some scenes.
Recolive Multicam, on a shared Wi-Fi, can capture video & audio from up to 4 iOS devices simultaneously. There are many YouTube tutorials that break down the features possible with this app.
Every modern device has a built in clock. Sync tightly those clocks and, somewhere in the files metadata, you should be able to track down a pretty accurate sync strategy. Then use your ears. If the sources share some elements, even if they are pretty far, with little patience you'll be able to sync everything up.
When I have to do syncs between videos and sound(like I have 2 cameras shooting a/v AND the good audio on a separate recorded) I use the audio embedded in the video, regardless of its quality, as the sync master, I hard pan this on side and the good one the other and at some point, shifting frame by frame, there won't be any phase difference. The biggest problem doing this with video editing SW is that the minimum amount of shift is a frame(24 fps usually) which most of the times is too large to exactly fit one track to the other.
These aren't iOS devices. Sony, Zoom & Tascam portable recorders. I'm syncing after the fact.
I nailed it:
get your recorders together
start recording
do the clap thing
place your recorders
have a coffee/nap/etc
retrieve your recorders
That works. Thx!