Best Settings for Exporting 4K Video in DawnArk Video Converter
Container & Codec
- Container: MP4 (widely compatible) or MKV (better feature support).
- Video codec: H.265/HEVC for best quality-per-size; use H.264/AVC if maximum compatibility is required.
Resolution & Frame Rate
- Resolution: 3840×2160 (native 4K). Do not upscale lower-res sources—keep source resolution if already lower.
- Frame rate: Match source (e.g., 23.976, 24, 25, 30, 60). Use same value to avoid judder.
Bitrate & Rate Control
- Rate control: Variable Bitrate (VBR), 2-pass if available for best quality.
- Target bitrate (HEVC): 25–50 Mbps for good quality; 50–100 Mbps for high-quality/fast-action content.
- Target bitrate (H.264): 50–100 Mbps for good quality; 100–200 Mbps for high-quality/fast-action.
- If file size is critical, lower to 15–25 Mbps (HEVC) for streaming/mobile.
Encoding Settings
- Profile: Main10 (HEVC) or High (H.264).
- Preset/quality: Use slower preset (e.g., “slow” or “slower”) for better compression; if presets are “ultrafast/fast/medium/slow,” choose medium or slow.
- CRF (if using CRF): HEVC CRF 18–22 (lower = better); H.264 CRF 18–23. Prefer CRF + 2-pass for consistent quality.
Color & Chroma
- Color space: Rec.709 for SDR; Rec.2020 for HDR only if source is HDR and pipeline supports it.
- Chroma subsampling: 4:2:0 (standard); choose 4:2:2 or 4:4:4 only if you need chroma fidelity and larger files.
Audio
- Codec: AAC (AAC-LC) or Opus for smaller files; use AC-3 or TrueHD for home theater compatibility.
- Bitrate: 256 kbps AAC (stereo) or 320 kbps for higher quality; 384–640 kbps for multichannel or lossless formats as needed.
- Sample rate: Match source (44.1 or 48 kHz).
Advanced / Practical Tips
- Enable hardware acceleration (NVENC/QuickSync/AMF) for faster encodes, but prefer software x265/x264 for best quality if time allows.
- Use two-pass VBR for predictable file size and improved detail.
- Enable deinterlacing only when source is interlaced.
- Keep HDR metadata if exporting HDR (scene-referred metadata and correct color primaries).
- Test encode a short 10–30s sample with your chosen settings before batch processing.
Example Presets
- High-quality archive (HEVC): MP4, HEVC, 3840×2160, match FPS, CRF 20 (or 2-pass VBR 40 Mbps target), preset slow, Main10, AAC 320 kbps.
- Streaming/mobile (HEVC): MP4, HEVC, 3840×2160, match FPS, CRF 22 or VBR 25 Mbps, preset medium, AAC 256 kbps.
If you want, I can produce exact DawnArk UI step-by-step settings (menus and values) assuming the converter exposes standard options—confirm and I’ll list them.
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