Is the sound quality different for each app on iPhone Xs Max?

iphone-xs-max recording

It seems like the recording quality is different between using voice memo on iPhone Xs Max and taking a video

It's the same microphone, but can the recording quality be different for each app?

810 2018-11-23 Gentleman

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A. 1

I think it's because of the encoding difference

Gentleman 6 years ago 0

A. 2

I think there's a difference in the sampling method
Even if the microphone is the same, the app will sample it anyway

Gentleman 6 years ago 0

A. 3

Aha, I see.
Thank you for the explanation

Gentleman 6 years ago 0

A. 4

I understand that voice notes use lossless compression, and videos are not lossless compression

Gentleman 6 years ago 0

A. 5

The video is stereo, and the voice note is different from Mono

Gentleman 6 years ago 0

A. 6

There's a slight difference
Thank you.

Gentleman 6 years ago 0

A. 7

Voice note is Apple Lossless Lossless lossless codec, Mono, 48000Hz
The video is AAC Codec, Stereo, 44100Hz
Both of them are sampling vaguely, so it's hard to say which one is better

Gentleman 6 years ago 0

A. 8

Thank you for the detailed explanation

Gentleman 6 years ago 0

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