Ann Video Converter Free — Best Settings for Quality & Small File Size
Recommended output (balance quality vs size)
- Container: MP4 (most compatible)
- Video codec: H.264 (x264) — good quality/size; use HEVC (H.265) only if target device supports it.
- Audio codec: AAC
Preset / encoder settings
| Setting | Recommended value |
|---|---|
| Resolution | Keep source resolution; downscale to 1080p or 720p if you need smaller files |
| Frame rate (FPS) | Match source (do not increase); if source is 60 fps and you can accept smoother motion loss, convert to 30 fps |
| Rate control | Constant Rate Factor (CRF) for x264 or x265 — use CRF 18–22 for high quality; 20–24 for smaller files |
| Bitrate mode | Use CRF (quality-based). If only bitrate option available: 3,500–8,000 kbps for 1080p; 2,000–4,000 kbps for 720p |
| Encoder profile | x264: High profile; x265: main profile |
| Tune | “film” for general footage, “animation” for cartoons, “none” otherwise |
| Keyframe interval (GOP) | 2–4 seconds (e.g., every 48–96 frames at 24 fps) |
| B-frames | 2–4 |
| Preset (speed) | Medium (balance) — slower presets (slow/veryslow) give better compression; use slower only if time permits |
| Audio bitrate | 128–192 kbps for stereo; 96 kbps for voice-only |
| Audio sample rate | 48 kHz (or keep source) |
| Channels | Stereo (or mono for voice-only) |
| Two-pass | Optional — use two-pass if setting target bitrate for consistent size; not needed with CRF |
Quick profiles
- High-quality (keep size reasonable): MP4, H.264, CRF 20, preset medium, resolution = source, AAC 192 kbps.
- Smallest size (still watchable): MP4, H.265, CRF 23, preset slow, downscale to 720p, AAC 128 kbps.
- Fast conversion: MP4, H.264, CRF 22, preset fast, keep source resolution, AAC 128 kbps.
Steps in Ann Video Converter Free (typical)
- Add source file(s).
- Choose MP4 output profile (or create custom).
- Set codec to H.264 (or H.265 if supported).
- Select resolution and FPS (match source or downscale).
- Set quality mode to CRF and enter recommended CRF (see above) — or choose target bitrate if CRF not available.
- Set audio to AAC, 128–192 kbps.
- Choose encoder preset (medium/slow) and start conversion.
Practical tips
- Always test settings on a short clip before batch converting.
- For archival of master files, keep a lossless or high-bitrate original.
- Use H.265 for up to ~30–50% smaller files at similar quality, but encode/decode is slower and less compatible.
- If sharing online, follow the platform’s recommended codecs/bitrates for the best results.
If you want, I can generate three concrete export presets (exact CRF/bitrate/preset) for 1080p, 720p, and mobile.
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