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Mp4 Files Into Videowave, Audio Becomes Static Noise


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#1 Festive

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Posted 06 September 2014 - 11:11 AM

My husband bought a Sony 4k camcorder. We import the 4k/MP4 files and they play great on the PC. I decided to pull these files into Videowave, insert transitions and save the file. In playback preview it looks great but the audio is pure noise/static. Any idea what is happening to the audio?

I uploaded the MP4 file into YouTube and it plays fine, just like when I view it on the PC. However, when trying to create a movie, etc., in Videowave the sound is pure static.

Thank you for any help you can provide. I'm almost bald from pulling out my hair.

Window 8.1
Roxio Creator NXT Pro 2

#2 sknis

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Posted 06 September 2014 - 02:57 PM

Right click on one of the files and select properties and then details. What type of audio stream is it?

PC  Desktop -CPU Solutions (Wisconsin): Windows 1064 bit,  I7 -4790k, 16G memory, MSI GeForce N-760 Video Card, 500G SSD, Creator NXT 2Pro

Laptop - Windows 8.1  Ultimate 64 bit
Alienware M17XR4. I-7 third generation @2.4, 8G RAM, 500G SSD, GTX660M, SoundBlaster 3Di,

Laptop - Windows 10

Dell 13 inch convertible.


#3 Festive

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Posted 06 September 2014 - 05:26 PM

Under details, there are only 3 entries: Bit rate 1531kbps, Channels 2 (stereo) and Audio sample rate 48kHz. Now what? THANKS.

#4 sknis

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Posted 07 September 2014 - 03:35 AM

You realize of course that any work you do with Video Wave will lower the video from the 4K to 2K (1920 by 1080). There are other programs that do work and output to 4K. Do you have a 4k player?

It is hard for us to make any definitive statement regarding the audio without doing some testing. Please take a short 5 second or so video of anything but with someone talking and upload it to a file sharing site so we can download it and play with it. I use YAA.im but there are lots of others.

Never mind. I tried to download some 4K videos from YouTube and they all came in as 1920 by 1080.

That audio bit rate seems a bit high but may be normal for 4K. What audio card or chip do you have? The camcorder should be recording in these formats: 2ch LPCM for XAVC-S[url=""%5D2%5B/url%5D & 5.1ch AC3 for AVCHD
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The sales brochure doesn't give any audio information for mp4. What did you select mp4 rather than the more popular AVCHD? Are you sure that the files are 4K?

I can't help with my rig.
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Edited by sknis, 07 September 2014 - 04:18 AM.

PC  Desktop -CPU Solutions (Wisconsin): Windows 1064 bit,  I7 -4790k, 16G memory, MSI GeForce N-760 Video Card, 500G SSD, Creator NXT 2Pro

Laptop - Windows 8.1  Ultimate 64 bit
Alienware M17XR4. I-7 third generation @2.4, 8G RAM, 500G SSD, GTX660M, SoundBlaster 3Di,

Laptop - Windows 10

Dell 13 inch convertible.





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