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Re: iPad Pro 3 audio distortion?
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Re: iPad Pro 3 audio distortion?


  • Subject: Re: iPad Pro 3 audio distortion?
  • From: Dean Reyburn <email@hidden>
  • Date: Fri, 09 Nov 2018 15:18:16 -0500

Hi Arshia,
I’m using AVAudioSessionCategoryPlayAndRecord but maybe I should use
AVAudioSessionCategoryRecord since my app does not itself do any playback. I do
wish to let the user listen to background music on headphones if they wish.

Apple is suggesting I try the .measurement or AVAudioSessionModeMeasurement
setting. Need to test that.

I use AudioUnits, the lowest level audio input possible.

Sorry I don’t know where all the mics are, I could only find four of them,
three on the front, one on the back.  My app only wants to use one mic.

-Dean Reyburn

> On Nov 9, 2018, at 11:36 AM, Arshia Cont <email@hidden> wrote:
>
> Hi Dean,
>
> What AVAudioSession Category/Mode are you using? Beyond this, you should
> probably tell us how you record (AVAudioEngine? AUnit?).. My first suggestion
> si to check the Stream format of your audio chain with that provided by the
> system (such as sample rate etc.).
>
> Do you mind sharing the positions of the 5 microphones?! Time to buy one of
> those I guess! :)
>
> Arshia
>
>> On 9 Nov 2018, at 17:29, Dean Reyburn <email@hidden> wrote:
>>
>> Hi all,
>> My app, CyberTuner does low level audio recording and custom DSP, then
>> displays the results in a way useful to pro piano tuners.  On iPad Pro
>> generation 3 which was just released on Nov. 7th, the audio appears to be
>> distorted. This is the first time I’ve ever seen any general recording
>> issues with iOS devices.
>>
>> There are five (!!) microphones on these new devices so I suspect that fact
>> has something to do with the problem. Any suggestions or anyone else see
>> issues with the new iPads?
>>
>> My app simply uses the default microphone.
>>
>> Thanks in advance,
>>
>> -Dean Reyburn
>> email@hidden
>> www.cybertuner.com
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1-888-SOFT-440  or 1-888-763-8440
Reyburn CyberTuner, Inc.
http://www.cybertuner.com

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  • Follow-Ups:
    • Re: iPad Pro 3 audio distortion?
      • From: Arshia Cont <email@hidden>
References: 
 >iPad Pro 3 audio distortion? (From: Dean Reyburn <email@hidden>)
 >Re: iPad Pro 3 audio distortion? (From: Arshia Cont <email@hidden>)

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