Crackling sound on playback

tpuhakka wrote on 1/28/2013, 7:51 PM

Every export format for a slideshow on Movie Edit Pro 2013 Plus has a crackling sound on playback except for Quicktime, but Quicktime won't play on my 3D  LG TV. I am using a brand new HP Pavilion g6 Laptop, which I bought to run this software. It has Windows 8.  :-(

 

I am still on my trial period. Please tell me there is a solution. This software does everything I need, except export a movie with clear sound.

Comments

emmrecs wrote on 1/29/2013, 5:07 AM

I think we need rather more info on your laptop!  Specifically, since this is an audio problem, about the soundcard.

My initial thought re "crackling sound" is that this is caused by some sort of buffer problem on the soundcard; as if MEP is trying to make it handle a faster data rate than it is capable of.  However, that would be shown on playback from MEP; export would normally not show this.

Also, in addition to the specs of your laptop, could you also include details of the export settings you are using (not just the format of the export.)  

And the other "unknown" is Windows 8!

Last changed by emmrecs on 1/29/2013, 5:07 AM, changed a total of 1 times.

Win 11 Pro 64 bit, Intel i7 14700, 32 GB RAM, NVidia RTX 4060 and Intel UHD770 Graphics, MOTU 8-Pre f/w audio interface, VPX, MEP, Music Maker, Vegas Pro, PhotoStory Deluxe, Photo Manager Deluxe, Xara 3D Maker 7, Samplitude Pro X7 Suite, Reaper, Adobe Audition 3, CS6 and CC, 2 x Canon HG10 cameras, 1 x Canon EOS 600D, Akaso EK7000 Pro Action Cam

tpuhakka wrote on 1/29/2013, 9:03 AM

I'm trying to find out what sound card is in this computer. It is not easy to find out. 

For export I use 1920:1080, 29.97 or 30 FPS, here is how it is described on the export window:

 MPEG4 Export (MP4) Software:

Video: 1920x1080 ; 29.97 Frames/s; H.264 6000 kbit/s
Audio: 44100 Hz; Stereo;  AAC
Size estimate: 29561 kByte

 I have tried reducing the buffer in the program settings to 4096 and have selected "direct sound" and "primary driver"

emmrecs wrote on 1/29/2013, 10:40 AM

 

I'm trying to find out what sound card is in this computer. It is not easy to find out. 

For export I use 1920:1080, 29.97 or 30 FPS, here is how it is described on the export window:

 MPEG4 Export (MP4) Software:

Video: 1920x1080 ; 29.97 Frames/s; H.264 6000 kbit/s
Audio: 44100 Hz; Stereo;  AAC
Size estimate: 29561 kByte

 I have tried reducing the buffer in the program settings to 4096 and have selected "direct sound" and "primary driver"

Hi.

Two things in your response are worthy of you checking.  First, if the audio problem is caused by buffer underruns, you need to increase the buffer size, not reduce it.

Second, I see your audio is 44.1kHz.  Audio for  video is more commonly  created at 48kHz.  I wonder whether whatever player you are using has problems with that lower sample rate?  Might be worth having MEP resample the audio to 48k and then retrying the export.

Last changed by emmrecs on 1/29/2013, 10:40 AM, changed a total of 1 times.

Win 11 Pro 64 bit, Intel i7 14700, 32 GB RAM, NVidia RTX 4060 and Intel UHD770 Graphics, MOTU 8-Pre f/w audio interface, VPX, MEP, Music Maker, Vegas Pro, PhotoStory Deluxe, Photo Manager Deluxe, Xara 3D Maker 7, Samplitude Pro X7 Suite, Reaper, Adobe Audition 3, CS6 and CC, 2 x Canon HG10 cameras, 1 x Canon EOS 600D, Akaso EK7000 Pro Action Cam

tpuhakka wrote on 1/29/2013, 2:47 PM

No crackling at 32KHz !

 

48KHz made no difference, but then I thought to try out 32KHz and lo-and-behold it worked. I should point out for anybody else with this problem, that you can find the control for this in the Export window under "Advanced"

 

Thanks for your help.