Author Topic: Dropouts in Recorded Audio  (Read 4199 times)

Poehmsen

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Dropouts in Recorded Audio
« on: December 01, 2014, 03:29:46 PM »
For the past few weeks, audio that I record to my iPad 2 has dropouts about every 90 seconds. It lasts about .25 second.
I don't hear this during the performance. But on playback, it' there.
It happens whether I use Masterfader to record or the app DAW MulitTrack 3.4.9.
I have the record settings in Masterfader set to 16 bit 44.1kHz, the lowest resolution.
This was happening before the upgrade to 3.0, and is still happening.
I thought it might be due to apps running in the background, but I shut everything down, turned off wifi, and disable program notifications.
I use Stage Traxx to play backing tracks, and input a vocal and guitar via line 6 HD500 to play along.
Used to record great, but now the dropouts....

I emailed Mackie and they said they haven't had issues. Suggested trying another iPad. But I only have the iPad 2.

 I've attached a jpg of the droput as seen when I load the wav in Audacity




« Last Edit: December 01, 2014, 05:32:29 PM by Poehmsen »

nottooloud

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Re: Dropouts in Recorded Audio
« Reply #1 on: December 01, 2014, 03:58:10 PM »
I use Stage Traxx to play backing tracks, and i

Stage Traxx is running on the same iPad? Have you tried anything recording without it?

Poehmsen

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Re: Dropouts in Recorded Audio
« Reply #2 on: December 01, 2014, 04:01:21 PM »
Yes - running on the same iPad. never used to be a problem.
and I've had dropouts even when I've recorded band rehearsals, without using StageTraxx.
 

robbocurry

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Re: Dropouts in Recorded Audio
« Reply #3 on: December 01, 2014, 06:47:23 PM »
Out of curiosity, is the DL sitting close to any loud source of music, especially bass?
Maybe vibration unseating the iPad. Just a wild theory:)
« Last Edit: December 01, 2014, 06:50:02 PM by robbocurry »
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Poehmsen

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Re: Dropouts in Recorded Audio
« Reply #4 on: December 01, 2014, 07:26:35 PM »
It's really quiet in my basement for rehearsal.
Using IEM and going direct to the board. The only thing you can hear in the room is my singing....and it's not good, but hopefully not bad enough to shake the Ipad  or mixer :)


I did a iOS upgrade last night to 8.1.1
Disabled all Background App Refresh

Going to try recording again tonight and will report back.


WK154

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Re: Dropouts in Recorded Audio
« Reply #5 on: December 01, 2014, 10:01:28 PM »
Now that you have a new iOS which by the way took care of my first suggestion namely reboot the iPad, I would install a new record/playback app such as VoiceRecord which has been fixed for iOS8.1.1. If this gives you clean recordings then my suggestion would be to reinstall your apps that have been fixed for iOS 8.x.x. The other possible issue I can see causing this is sync failure.
When in doubt KISS

nottooloud

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Re: Dropouts in Recorded Audio
« Reply #6 on: December 01, 2014, 10:04:14 PM »
The other possible issue I can see causing this is sync failure.

I've never seen a dropout, despite repeated temporary and fatal sync failures.

Fluddman

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Re: Dropouts in Recorded Audio
« Reply #7 on: December 01, 2014, 11:05:09 PM »
My thoughts were sync failure.

I was fooling around with the DL last night and every 5 minutes or so it would sync. This was with MF.3.0 and a docked iPad 2.

Cheers

Poehmsen

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Re: Dropouts in Recorded Audio
« Reply #8 on: December 02, 2014, 04:24:07 AM »
Ok - all appears well now.
I recorded 5-6 minutes using Voicerecord and about 20 minutes using MasterFader. No drop outs!

Not sure what fixed it.
Maybe the iOS upgrade to 8.1.1
Maybe disabling Background App Refresh.

Thanks for help, advice, and the tip on VoiceRecord. Very cool app with ability to convert to mp3 and email. Nice!