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TOPIC: won't play sequence or any other clips when i press spacebar or double click them

won't play sequence or any other clips when i press spacebar or double click them 6 days, 8 hours ago #229440

  • AppollyxMC
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I have been trying for literal hours to get this to work and edited around the problem, and now when I go to record a voice over it just sits at prerolling.. I also have tried to play the sequence I just edited and it refuses to play.. at all.

Re: won't play sequence or any other clips when i press spacebar or double click them 6 days, 6 hours ago #229443

  • briandrys
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Welcome to the forum.

Which operating system are you using?

Re: won't play sequence or any other clips when i press spacebar or double click them 5 days, 12 hours ago #229537

  • AppollyxMC
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Windows 10

Re: won't play sequence or any other clips when i press spacebar or double click them 5 days, 11 hours ago #229538

  • hugly
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Hello,

Would you mind sharing your computer details (Lightworks version, CPU, RAM GPU), together with a Mediainfo report of typical footage you use in your current sequence and a screenshot of your current timeline fully zoomed out, without trailing and leading black? Here you'll find information about Mediainfo reports:

www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=66072&Itemid=81#66072

Prior to posting all that, restart your computer to exclude hanging devices or drivers and see if it fixes the issue.
It's better to travel well than to arrive...
Last Edit: 5 days, 11 hours ago by hugly.

Re: won't play sequence or any other clips when i press spacebar or double click them 5 days, 10 hours ago #229541

  • AppollyxMC
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General
Unique ID : 173764796027194143428824057235361629996 (0x82B9E1E4A2065C7FD737F01B34E2072C)
Complete name : E:\My Stuff\Panik\Video\2020-11-18 21-59-06.mkv
Format : Matroska
Format version : Version 4
File size : 1.93 GiB
Duration : 1 h 44 min
Overall bit rate : 2 655 kb/s
Writing application : Lavf58.29.100
Writing library : Lavf58.29.100
ErrorDetectionType : Per level 1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1 h 44 min
Nominal bit rate : 2 500 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.090
Writing library : x264 core 157 r2945 72db437
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=6 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=60 / keyint_min=6 / scenecut=0 / intra_refresh=0 / rc_lookahead=10 / rc=cbr / mbtree=1 / bitrate=2500 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=2500 / vbv_bufsize=2500 / nal_hrd=none / filler=1 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio #1
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : A_AAC-2
Duration : 1 h 44 min
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Title : Track1
Default : Yes
Forced : No

Audio #2
ID : 3
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : A_AAC-2
Duration : 1 h 44 min
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Title : Track2
Default : Yes
Forced : No

Re: won't play sequence or any other clips when i press spacebar or double click them 5 days, 9 hours ago #229542

  • hugly
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Assuming and accepting that you prefer to not disclose a screenshot of your timeline and your computer details for good reasons, it's very likely that this file has no sound when importing into Lightworks, perhaps it might be source of other trouble as well. That's because MKV isn't an officially supported container format. Personally, I consider it as a bug that Lightworks allows importing it. However, I don't see anything in the mediainfo which would explain the symptoms you described.

What is that, a screen recording captured with OBS? If it is, try remuxing to MP4 with OBS and see if it helps.
It's better to travel well than to arrive...
Last Edit: 5 days, 9 hours ago by hugly.

Re: won't play sequence or any other clips when i press spacebar or double click them 5 days, 9 hours ago #229544

  • AppollyxMC
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it was with obs.. what would you recommend I use as a file source? I am currently recording videos for my youtube channel, and am trying to have 2 audio tracks when it records, which obs does have the ability to do it just suggested that I use mkv for that purpose.

Re: won't play sequence or any other clips when i press spacebar or double click them 5 days, 8 hours ago #229545

  • hugly
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You can stay with MKV and the settings you've used. You just have to remux MKV to MP4, as long as Lightworks doesn't support it properly. OBS provides a function for that:

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Videos directly recorded in MP4 or MOV with OBS are well supported, same as multiple stereo audio tracks embedded in those formats.

However, as mentioned, I'm not sure if the MKV container is the only problem you are struggling with. Just try remuxing and see happens.
It's better to travel well than to arrive...

Re: won't play sequence or any other clips when i press spacebar or double click them 4 days, 21 hours ago #229575

  • AppollyxMC
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Thank you, I will try it tonight. Lol it's been a pain in the neck learning how to do videos, editing them, and stuff. All I've ever done is live stream

Re: won't play sequence or any other clips when i press spacebar or double click them 3 days, 12 hours ago #229662

  • AppollyxMC
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So I remuxed it and still have the same issue.

Re: won't play sequence or any other clips when i press spacebar or double click them 3 days, 6 hours ago #229676

  • hugly
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After importing you should see now the tracks V1,A1,A2, instead of just V1 with the original recording. Do you?

Just to exclude the obvious, restart your computer to unlock possibly locked devices and files and try again.

If the issues persists, I've attached a project backup with a test sequence. Download and unzip the folder. Restore it from 'Restore an archived project..' upper left hand side on the start screen. Try to play the sequence and to export it. Does that work? If it doesn't, please zip your Lightworks Logs folder and attach it with your response. You'll find it here:
C:\Users\Public\Documents\Lightworks\Logs
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It's better to travel well than to arrive...
Last Edit: 3 days, 6 hours ago by hugly.

Re: won't play sequence or any other clips when i press spacebar or double click them 3 days, 5 hours ago #229677

  • AppollyxMC
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Sadly, it also does not play.
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Re: won't play sequence or any other clips when i press spacebar or double click them 3 days, 5 hours ago #229679

  • hugly
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Is it possible to export the file (the sequence) and if it is, does the exported file have sound?
It's better to travel well than to arrive...
Last Edit: 3 days, 5 hours ago by hugly.

Re: won't play sequence or any other clips when i press spacebar or double click them 3 days, 5 hours ago #229681

  • AppollyxMC
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i mean it wont play at all in the preview thing.. like when you select the sequence and press space bar, or when I double click it. the sound was a secondary issue. my apologies I should have been more clear. The remix let me have the 2 channels of audio, but I still cant play the sequence in the app and I have to move through the video one frame at a time with the arrow keys

Re: won't play sequence or any other clips when i press spacebar or double click them 3 days, 5 hours ago #229682

  • hugly
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The error log shows this
Failed to start playing! (0x887d0003)
AudioResource::createOSBuffer() failed
Itexplains the playback problems and indicates that there's trouble with your audio output device on OS level. Lightworks uses the audio output device configured in Windows as default.

Checking the settings of your audio devices would be a good point to start trouble shooting. Perhaps, disconnecting all external sound devices might be prudent to narrow down possible causes.
It's better to travel well than to arrive...
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