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Activity Forums Apple Final Cut Pro Interview Audio Not Playing on iPhone speaker?

  • Interview Audio Not Playing on iPhone speaker?

    Posted by Erick Puentes on July 7, 2014 at 5:53 pm

    I just created my first multi-cam interview/product demo and all seems great, until I upload the exported video to YouTube and can’t hear any audio when played out of an iPhone speaker. If I plug in headphones, it sounds great but out of its speaker nothing. I suppose this has to do with the audio being “out-of-phase”. I tried changing the audio in the original multi-cam clip to “dual mono” but nothing that completely got rid of the audio. I changed it back to the “stereo” but dont’ know why it won’t play out of the iPhone speaker but sounds great from a laptop/PC. Any guidance would be appreciated. Thank you!

    ~Erick

    Bill Davis replied 11 years, 10 months ago 4 Members · 21 Replies
  • 21 Replies
  • Bill Davis

    July 7, 2014 at 6:19 pm

    I doubt it’s a phase issue. It’s exceedingly rare that a complex signal is PERFECTLY out of phase to the point where it totally kills the audio entirely.

    I’d suspect that you have some type of patching issue. Or something going wrong in the iPhone encoding.

    Your thinking of summing everything to mono is a good idea, tho. Unless you KNOW that the only way people will listen is on stereo systems, mono solves a lot of problems. Thats why stuff like huge Rock Concerts are typically mixed in Mono. Makes large venue sound reinforcement much simpler to get right.

    And the same idea holds true when you’re sending stuff out into the world where there’s no way to track how it will be played back.

    (pains me to even mention it, but you have checked volume and mute and a problem with the cutoff headphone jack on the iPhone, right? I know, sorry to even bring it up.)

    Know someone who teaches video editing in elementary school, high school or college? Tell them to check out http://www.StartEditingNow.com – video editing curriculum complete with licensed practice content.

  • Jeremy Garchow

    July 7, 2014 at 6:22 pm

    On your iPhone go in to Settings > General > Accessibility and make sure that mono audio is off, and the pan is selected in the middle of L and R.

    Jeremy

  • Erick Puentes

    July 7, 2014 at 6:38 pm

    @Bill: I check everything all seems well. My export plays well on every device but when it comes to listening to it via the iPhones speakers the interview audio cuts out BUT funny enough the intro music plays just fine. Just as a background, I recorded the product demo with a DSLR via a Lavalier mic connected directly into the camera. When I brought that footage into FCPX, the audio came in as 2ch Stereo. Now that I created the multi-cam, not sure whether I should adjust the audio in the original clip/multi-cam clip or directly in the project that i cut. Someone mentioned adding a “Gain” effect, selecting “convert to mono” and chosing either phase left or right. That didnt’ seem to work for me either. Sorry, in advance for the newbie question.

    @Jeremy: Clever idea but checked all the devices, iphone, ipad and all have Mono off and Left/Right centered in the Prefs. Thanks!

  • Jeremy Garchow

    July 7, 2014 at 6:49 pm

    [Erick Puentes] “Clever idea but checked all the devices, iphone, ipad and all have Mono off and Left/Right centered in the Prefs. Thanks!”

    I see, I thought this was localized to one iPhone.

    Can you share a link to the problem video?

  • Erick Puentes

    July 7, 2014 at 6:58 pm

    @Jeremy: Yeah, I should’ve been more clear that it was an issue in general. Below is link to the video in question. If you listen to it via the iPhone speaker you’ll have issues with the dialogue audio but plug in headphones and it sounds perfect.

    https://www.youtube.com/watch?v=El2JmEAFOAs

  • Jeremy Garchow

    July 7, 2014 at 7:08 pm

    [Erick Puentes] “Yeah, I should’ve been more clear that it was an issue in general. Below is link to the video in question. If you listen to it via the iPhone speaker you’ll have issues with the dialogue audio but plug in headphones and it sounds perfect.”

    Yeah, that is odd. On my computer, it does seem that one channel is on the left side, and another is on the right. There might be a little phase cancellation or something happening, but I am not a very technical audio person; we all have faults. 😉

    I would try turning off the right channel, pan your left channel to center, and reexport.

    Can I see an screen grab of your timeline, a clip selected, the inspector open, and the audio tab selected?

    Is it ironic that this video is about cables, audio and otherwise?

  • Erick Puentes

    July 7, 2014 at 7:31 pm

    No kidding, the “irony”! That’s why it’s killing me that I’m having these issues. No pain, no gain. LOL!

    In any case, here is a screen grab.

  • Jeremy Garchow

    July 7, 2014 at 7:34 pm

    Can you select the video part of the clip and not the audio component?

  • Erick Puentes

    July 7, 2014 at 7:49 pm

    Sure, here you go.

  • Jeremy Garchow

    July 7, 2014 at 8:00 pm

    OK.

    Sorry, bear with me.

    Now, make that audio (NikonD5300) dual mono, and turn off the second channel and repost a grab.

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