Adobe Community: In LR4 my music for my slideshow video skips when played on TV

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1. THG_BO,

Jan 1, 2013 11:57 AM in reply to awesome-art

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Hi,

I suggest bandwith problems with your generated video. E.g. a DVD only allows 9 Mbit for video + music. There will be some limitations on your video / tv player concerning bandbith. Smoth transitions require a lot of bandwith!

BAndwith limitations on modern cpu / gpu are much higher.

What can you do? E.g. Reduce the mp3 bitrate or use wav (no decoding needed).

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2. awesome-art,

Jan 1, 2013 12:06 PM in reply to THG_BO

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Great ideas to try - Thanks!

I was going to try not doing 'fit to music' to see if that helps, but converting my mp3 to WAV sounds promising. It's a 40 minute mp3 where I splices about 10 shorter mp3's using Audacity.

I am burning to a 4 GB USB and playing the video from the USB input on my 42" Vizio TV, when I burn to a DVD and try to play it skips much worse. On the USB it skips about 2 or 3 times during each individual MP3 that was spliced together, although the first 3 mp3's doesn't skip at all, only the last few.

Regards,

Allen

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3. awesome-art,

Jan 1, 2013 12:19 PM in reply to THG_BO

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According to a book I have, LR4 doesn't work with WAV files, only mp3 and AAC files. Have you used WAV's?

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4. THG_BO,

Jan 1, 2013 12:48 PM in reply to awesome-art

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Sorry, I never used lr to export slideshows. I only watch them in lr. Try to export avi without sound and use avidemux to merge video and music. This also allows you to reduce the mp3 bit rate (a little bit) or to reencode the video to mp4 with might be better on your vizio.

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5. awesome-art,

Jan 1, 2013 1:03 PM in reply to THG_BO

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I think I need to try something simpler than all that first.

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6. THG_BO,

Jan 1, 2013 3:32 PM in reply to awesome-art

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I just created a small slideshow (1920 @30 frames). Bitrate when displaying the images is about 1500-3000 kbit. Bitrate during transtion from one image to an other > 17000 kb. I used VLC statistics.

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7. awesome-art,

Jan 1, 2013 3:38 PM in reply to THG_BO

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Well, LR4 will not use a WAV file, and when I changed the bit rate from 128 -> 64 in my mp3 it said invalid file format when I tried to add it to my video.

What do you think about me converting the mp3 to mp4a ? That's a supported file format, and there are free converters available. Would that be worth trying ?

The background music isn't that important, it's just for some atmosphere for the slideshow video.

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8. THG_BO,

Jan 1, 2013 4:28 PM in reply to awesome-art

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Hi,

I would try to find out if there are some limitations about bandwith and H264 Vizio. I did not find anything in the manual :-( Ask the support.

Did you tried an other USB stick?

Perhapst you can shorten the fade in / out of the pictures a little bit. This produces the burst in bandwith. Perhast there is a too small buffer in the Vizio for your video with produces problems in loading data (music).

I

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9. awesome-art,

Jan 1, 2013 5:20 PM in reply to THG_BO

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>> Did you tried an other USB stick?<< - Yes, several

>>Perhapst you can shorten the fade in / out of the pictures a little bit.<< - I will try that next!

>>small buffer in the Vizio << I need it to work for all large flat screen TV's because it is going to be marketed as a big screen slideshow

The thing is that if I just play the soundtrack on the TV, it works fine with no skipping. I am wondering if my images might be too large. They are all 300 DPI JPG's and about 5,000 pixels at about 10 megabytes, and there are 276 of them for playing the video for about 40 minutes.

I could convert the mp3 to mp4a and add that format as the soundtrack.

Thanks for all of your input,

Allen

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10. Jao vdL,

Jan 1, 2013 6:29 PM in reply to awesome-art

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When you export to a video file from Lightroom's slideshow module, Lightroom reencodes the audio to mpeg4 audio automatically. However, Lightroom is not very smart about the video bit rate and often goes over what some types of media allow. What I do is run the output video file through Handbrake to reencode to a more compatible file that will play from almost any device.

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11. awesome-art,

Jan 1, 2013 6:34 PM in reply to Jao vdL

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Hi Jao - Thanks, I just googled Handbrake and it got great reviews. I'll download it tonight. Any special settings one should know about to get a good conversion?

I am using LR4 with Windows 7 PC.

Regards,

Allen

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12. Jao vdL,

Jan 1, 2013 6:36 PM in reply to awesome-art

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The defaults usually work fine for me.

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13. awesome-art,

Jan 1, 2013 8:56 PM in reply to Jao vdL

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Jao - Handbrake worked perfect! I ran a video through handbrake that had been skipping in the soundtrack before and it ran perfectly. It also makes the output mp4 file much smaller!

Thanks very much for the help.

Allen

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In LR4 my music for my slideshow video skips when played on TV

Jan 1, 2013 10:22 AM

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