Losing sound when adding still image or mosaic to video

Report · Nov 20, 2018

I have added a .mov audio/video file on track 1 which initially plays fine. Audio is heard normally.

And on two separate occasions the sound went missing. I added a still image overlaid on a section of the video which caused the sound to stop on the entire video. The sound bar is still there just doesn't play. The default sound is still the speakers as per the audio hardware.

This same thing happened when we added a mosaic to the video as we needed to blur out some faces. As soon as we added the blue the sound stopped.

Not sure what we are doing incorrectly?

Report · Nov 21, 2018

It might be helpful if you let us know which version of the program you're using on what operating system.

Meantime, open your MOV in the free download MediaInfo. In MediaInfo, set View to Text and then copy and paste the report it generates to this forum.

There are dozens of variations of MOV files, but once we knew what your file is composed of (and which versions of your software you're using) we might better be able to advise you.

Report · Nov 21, 2018

Hi Steve,

Thank you for your reply.

I am using the most recent version Premiere Elements 2019. Below is the text copied as requested for the video in question.

General

Complete name

Format : MPEG-4

Format profile : QuickTime

Codec ID : qt 0000.00 (qt )

File size : 8.96 GiB

Duration : 49 min 37 s

Overall bit rate : 25.9 Mb/s

Encoded date : UTC 2018-11-09 23:34:17

Tagged date : UTC 2018-11-10 00:23:54

Writing library : Apple QuickTime

com.apple.quicktime.location.ISO6709 : -33.9294+150.8825/

com.apple.quicktime.publisher : ISO: 24.0625

com.apple.quicktime.software : Created with FiLMiC Pro6.7.5995

Video

ID : 1

Format : AVC

Format/Info : Advanced Video Codec

Format profile : High@L4.1

Format settings : CABAC / 1 Ref Frames

Format settings, CABAC : Yes

Format settings, RefFrames : 1 frame

Format settings, GOP : M=1, N=15

Codec ID : avc1

Codec ID/Info : Advanced Video Coding

Duration : 49 min 37 s

Bit rate : 24.3 Mb/s

Width : 1 920 pixels

Clean aperture width : 1 920 pixels

Height : 1 080 pixels

Clean aperture height : 1 080 pixels

Display aspect ratio : 16:9

Clean aperture display aspect ratio : 16:9

Frame rate mode : Variable

Frame rate : 24.000 FPS

Minimum frame rate : 23.077 FPS

Maximum frame rate : 25.000 FPS

Color space : YUV

Chroma subsampling : 4:2:0

Bit depth : 8 bits

Scan type : Progressive

Bits/(Pixel*Frame) : 0.489

Stream size : 8.43 GiB (94%)

Title : Core Media Video

Encoded date : UTC 2018-11-09 23:34:17

Tagged date : UTC 2018-11-10 00:23:54

Color range : Limited

Color primaries : BT.709

Transfer characteristics : BT.709

Matrix coefficients : BT.709

Codec configuration box : avcC

Audio

ID : 2

Format : PCM

Format settings : Little / Signed

Codec ID : lpcm

Duration : 49 min 37 s

Source duration : 49 min 37 s

Bit rate mode : Constant

Bit rate : 1 536 kb/s

Channel(s) : 2 channels

Channel layout : L R

Sampling rate : 48.0 kHz

Bit depth : 16 bits

Stream size : 545 MiB (6%)

Source stream size : 545 MiB (6%)

Title : Core Media Audio

Encoded date : UTC 2018-11-09 23:34:17

Tagged date : UTC 2018-11-10 00:23:54

I appreciate your assistance.

Report · Nov 21, 2018

The video uses a variable frame rate compression, which is not supported in Premiere Elements -- which is why the program is not matching project settings to video specs, which is why it's misbehaving.

Try converting the video to an MP4 by loading it into HandBrake. Set Handbrake up to create a 1920x1080 30 fps video with a constant frame rate. The MP4 you output should edit perfectly in Premiere Elements.

Report · Nov 21, 2018

Thank you Steve,

It has worked, however, seems like a long process to do for every video.

Thank you again, your help is much appreciated.

Report · Nov 22, 2018

Glad it worked Aaron. Hopefully Adobe will eventually address the issues with working with variable frame rate video in a future version of the program.

Please mark this question as answered.