-Hardware: ASUSTeK COMPUTER INC. Laptop
Processor Intel(R) Core(TM) i7-10875H CPU @ 2.30GHz (2.30 GHz)
Installed RAM 32.0 GB (31.8 GB usable)
System Type 64-bit Operating System, x64 Processor
Processor Intel(R) Core(TM) i7-10875H CPU @ 2.30GHz (2.30 GHz)
Installed RAM 32.0 GB (31.8 GB usable)
Edition Windows 11
Version 24H2
Installed on 09/23/2025
OS Build 26100.6899
Experience Windows Feature Experience Pack 1000.26100.253.0
System Type 64-bit Operating System, Processor x64
-Nvidia GeForce RTX 2070 Card:
DirectX Version: 12.0
GPU: NVIDIA GeForce RTX 2070
Driver Version: 581.57
Driver Type: DCH
Direct3D Feature Level: 12_1
CUDA Cores: 2304
Core Clock: 1455 MHz
Memory Data Rate: 11.00 Gbps
Memory Interface: 256-bit
Memory Bandwidth: 352.06 GB/s
Total Available Graphics Memory: 24468 MB
Dedicated Video Memory: 8192 MB GDDR6
System Video Memory: 0 MB
Shared System Memory: 16276 MB
Video BIOS Version: 90.06.58.40.09
IRQ: Not Used
Bus: PCI Express x8 Gen3
Device ID: 10DE 1F14 17BF1043
Reference: 4914 0031
-Hello,
In Vegas Pro 23-302, importing video footage from a GoPro 11 5K60 into Vegas Pro 23-302 works very well, playback is smooth. After recording, playback is still smooth.
When I start automatically crossfading events, playback is choppy. The jerkiness is unstable and random. There are only crossfades and pan/zoom in this project. I restart Vegas, it's the same. In Vegas Pro 23-278, it's the same. CTRL+SHIFT, no change. Legacy AVC decoding - HEVC and Nvidia or Intel GPUs, same. Deleting the audio track, same.
Project address: C:\Jean\magix19\media\plongee102025v3v23302.veg.
In Vegas Pro 22-250, the same imported images, automatically crossfade and pan/zoom, playback is smooth. Therefore, I returned to Vegas Pro 22-250.
Looking forward to your response. Best regards
Fontaine Jean
-MediaInfo report on the characteristics of GoPro 11 5K60 videos:
General
Full name: C:\jean\plongeemontage\stgilles\102025\GX016711.MP4
Format: MPEG-4
Format, Profile: Base Media / Version 1
Codec ID: mp41 (mp41)
File size: 70.4 MB
Duration: 9 s 743 ms
Overall bitrate: 60.6 Mbps
Frame rate: 59.940 fps
Encode date: 2025-10-16 04:59:32 UTC
Tagging date: 2025-10-16 04:59:32 UTC
Video
ID: 1
Format: HEVC
Format/Info: High Efficiency Video Coding
Format, Profile: Main 10@L6@Main
Codec ID: hvc1
Codec ID/Info: High Efficiency Video Coding
Duration: 9 s 743 ms
Bitrate: 60.4 Mbps
Width: 5312 pixels
Height: 2988 pixels
Form Factor w/h: 16:9
Frame Rate Type: Constant Fps
Frame Rate: 59.940 (60000/1001) fps
Color Space: YUV
Chroma Subsampling: 4:2:0
Bit Depth: 10 bits
Bits/(Pixel*Frame): 0.063
Stream Size: 70.1 MB (100%)
Title: GoPro H.265
Library Used: GoPro H.265 Encoder
Language: English
Encoding Date: 2025-10-16 04:59:32 UTC
Tagging Date: 2025-10-16 04:59:32 UTC
Color Gamut: Full
Chromaticity Coordinates: BT.709
Transfer Characteristics: BT.709
Matrix Coefficients: BT.709
Codec Configuration: hvcC
Audio
ID: 2
Format: AAC LC
Format/Info: Advanced Audio Codec Low Complexity
Codec ID: mp4a-40-2
Duration: 9 s 728 ms
Bitrate Type: Constant
Bitrate: 192 kbps
Nominal Bitrate: 48.0 kbps
Channel(s): 2 channels
Channel Layout: LR
Sampling Rate: 48.0 kHz
Frame Rate: 46.875 fps (1024 SPF)
Compression Mode: Lossy
Stream Size: 225 KB (0%)
Title: GoPro AAC
Language: English
Encode Date: 2025-10-16 04:59:32 UTC
Tagging Date: 2025-10-16 04:59:32 UTC
Other #1
ID: 3
Type: Timecode
Format: QuickTime TC
Duration: 9 s 743 ms
Type of Bitrate: Constant
Frame Rate: 59.940 (60000/1001) fps
First Frame Timecode: 09:08:08:22
Last Frame Timecode: 09:08:18:15
Calculated Timecode: Yes
Title: GoPro TCD
: English
Encode Date: 2025-10-16 04:59:32 UTC
Tagging Date: 2025-10-16 04:59:32 UTC
Other #2
ID: 4
Type: Meta
Format: gpmd
Codec ID: gpmd
Duration: 9 s 742 ms
Bitrate Type: Variable
Stream Size: 67.3 KB (0%)
Title: GoPro MET
Language: English
Encoding Date: 2025-10-16 04:59:32 UTC
Tagging Date: 2025-10-16 04:59:32 UTC
LastFrame_Duration: -268