"Cannot Open Waveform Device" Message

k9vet wrote on 1/4/2020, 11:05 AM

I am using MEP 19.0.2.49 on a Dell Windows 7 computer. Often when I load a movie I am editing, as soon as it is loaded and I click the PLAY button, I get the message attached here and the PLAY button turns to STOP and I can't do anything! What is the fix? MY HD has 23 Gb of available memory!!

SO frustrating! Please help!

Comments

CubeAce wrote on 1/4/2020, 12:08 PM

@k9vet

I have had this warning in the past as well.

Try going to File / Settings / Program and alter the buffer settings in the Payback section to a higher amount.

Don't go mad but increase a bit at a time until it loads or you may have a different set of problems to resolve.

Adding too many buffers can cause stuttering audio and increasing the other figure may cause latency issues.

Last changed by CubeAce on 1/4/2020, 12:10 PM, changed a total of 1 times.

Windows 10 Enterprise. version 1909.OS Build 18363.720. Latest Bios update as well as latest hardware updates for Western digital hard drives.

Asus ROG STRIX Z390-F Gaming motherboard with Supreme FX inboard audio using the S1220A code. Intel i9900K Coffee Lake 3.6 to 5.1GHz CPU with 32GB of 2133MHz Corsair DDR4 ram. 1000 watt EVGA modular power supply. 2 x 320GB SSD drives striped for faster R/W times are my C: drive. 1 320gig Toshiba M2.1 drive. + x2 WD BLACK 2TB internal SATA 7,200rpm hard drives. Total 4TB. Three external WD drives for backup. NVIDIA G Force GT 1030 Graphics clock 1252Mhz Memory data rate 6008Mhz. 384 CUDA cores. Memory interface 64bit Memory bandwidth 48.06 GB/s 2GB of dedicated video memory, shared system memory 9967MB PCi Express x4 Gen3. Running MEP Premium 19.0.2.58

emmrecs wrote on 1/4/2020, 1:43 PM

@k9vet

In addition to what @CubeAce has written, this specific problem can occur if the Sample Rate of your Realtek sound card has been switched to e.g. 44.1kHz when MEP expects 48kHz. "Windows Sounds" (of all varieties) tend to favour 44.1kHz and so, e.g. a notification of an incoming email can force the sound card to the "wrong" (for MEP and, indeed, many video editing programs) Sample Rate.

To correct this you will need to access your sound card settings and manually change it back.

HTH

Jeff

Win 10 Pro 64 bit, Intel i7 Quad Core 6700K @ 4GHz, 32 GB RAM, AMD Radeon R7 360 and Intel HD530 Graphics, MOTU 8-Pre f/w audio interface, VPX, MEP, Music Maker, Photo Story Deluxe, Photo Manager Deluxe, Xara 3D Maker 7, Reaper, Adobe Audition CS6 and CC, 2 x Canon HG10 cameras, 1 x Canon EOS 600D

k9vet wrote on 1/4/2020, 4:13 PM

I appreciate the suggestions but now I am having an issue where the sound keeps playing but the video keeps freezing!!

In program audio settings I have buffer 4, 16384 and prev 4096 I have never had these problems when editing other videos, so I am very frustrated that i cannot move forward in editing this particular film. I do not use any fancy effects, multicamera stuff, etc. Just a basic vacation film with occasional fades. I paid $70 for this "new" 2020 version and now it is useless, at least for this film. BTW, my computer sound is set on 48K.

CubeAce wrote on 1/4/2020, 5:52 PM

@k9vet

Hi.

I wouldn't try copying my buffer example as my PC specs may be way higher than your own. Try slight increments or try switching to another audio driver if you can't reach a compromise between not loading and smooth playback.

I also notice on your original post you say your HD has 23gig of memory. I mistook that to mean you had 23gig of system ram memory but do you actually mean you only have 23 gig of hard drive space? If so that is a ridiculously low amount of space in which to try to manage any video project for editing. If you only have one hard drive it's a wonder the whole machine isn't tripping over itself. In my opinion your C: drive should have at least 250 gig of spare capacity to allow the program to move files around while MEP is working.

It always helps if you also give us your complete computer specs as well as the file types and resolutions of the videos you re trying to edit.

For instance. Processor type, amount of ram, amount of hard drives and types of drives, amount of free space on said drives, audio system, is it an onboard audio chip? which motherboard if yes? which sound card if no? Graphics card if fitted. You have stated you are using Windows 7 but which version? Are your files HD or 4K or lower?

It is possible at this point that our answers are wrong but normally the recommendation given to the problem as stated would normally help.

I did state that if you overdid the settings that stuttering may occur and this would be an extreme example of this but would not occur if you had enough ram at a fast enough speed for example.

This is why it is helpful to give as much information as possible and also a good idea to read the manual before starting a project or at least look at some of the online tutorials.

We really would like to help other users but it's difficult without more information other than 'This has stopped working'.

Ray.

 

[EDIT]

I notice from your profile you have been a member since 2008.

Have you used a previous version of MEP? Was it 32 bit or 64 bit?

Does your PC fit the present requirements for running MEP?

 

 

Last changed by CubeAce on 1/4/2020, 5:58 PM, changed a total of 1 times.

Windows 10 Enterprise. version 1909.OS Build 18363.720. Latest Bios update as well as latest hardware updates for Western digital hard drives.

Asus ROG STRIX Z390-F Gaming motherboard with Supreme FX inboard audio using the S1220A code. Intel i9900K Coffee Lake 3.6 to 5.1GHz CPU with 32GB of 2133MHz Corsair DDR4 ram. 1000 watt EVGA modular power supply. 2 x 320GB SSD drives striped for faster R/W times are my C: drive. 1 320gig Toshiba M2.1 drive. + x2 WD BLACK 2TB internal SATA 7,200rpm hard drives. Total 4TB. Three external WD drives for backup. NVIDIA G Force GT 1030 Graphics clock 1252Mhz Memory data rate 6008Mhz. 384 CUDA cores. Memory interface 64bit Memory bandwidth 48.06 GB/s 2GB of dedicated video memory, shared system memory 9967MB PCi Express x4 Gen3. Running MEP Premium 19.0.2.58

johnebaker wrote on 1/5/2020, 9:14 AM

@k9vet

Hi

Is your Dell computer system still the one you had back in 2015 ie:

. . . . Intel Core (TM) i3-4130CPU @3.40 GHz, 4 Gb RAM . . . .

If so then it is below the required specification for running MEP 2020 and may be the cause of your issue having only 4GB of RAM.

John EB

Lateral thinking can get things done!

VPX, MEP Premium, MEP 2016, and earlier versions, Music Maker Premium, Music Maker 2016, 2015.

Running Windows 10 64bit on Intel i7-8700K 3.2 GHz, 16Gb RAM, 1Tb + 2 x 2Tb internal HDD + 60Gb internal SSD, + 6 x 2Tb ext HDDs, Sony FDR-AX53 Video camera, Contour HD 1080 and Sony HDR-AS30V Sports cams.

k9vet wrote on 1/6/2020, 10:46 AM

I agree, and so I installed the software on my Windows 10 computer and things work well now! BTW, I don't know if you work for Magix, but I have a complaint: on the box that my MEP Plus came in it says, under update service, "Unlimited use of program". Nowhere does it say anything about how many of my own computers can use the software. If there are such limitations, it should say so ON THE BOX. Disappointing, especially since I have been a Magix user for YEARS!

johnebaker wrote on 1/6/2020, 2:48 PM

@k9vet

Hi

I do not work for Magix, however to answer your complaint - you can install MEP on as many computers as you wish, however you only have 2 activation slots, ie you can only use on any 2 computers at a time. To switch to a third installation you have to deactivate one of the 2.

Unlimited use of the program means that, if you let the Update Service expire the version, it will remain at its patch level, with no further updates or upgrades

However if you have to re-install, it will revert to the version you had at the last Update Service purchased.

HTH

John EB

 

 

Last changed by johnebaker on 1/6/2020, 2:53 PM, changed a total of 1 times.

Lateral thinking can get things done!

VPX, MEP Premium, MEP 2016, and earlier versions, Music Maker Premium, Music Maker 2016, 2015.

Running Windows 10 64bit on Intel i7-8700K 3.2 GHz, 16Gb RAM, 1Tb + 2 x 2Tb internal HDD + 60Gb internal SSD, + 6 x 2Tb ext HDDs, Sony FDR-AX53 Video camera, Contour HD 1080 and Sony HDR-AS30V Sports cams.