Video Quality and Recording Resolution

This guide covers RecDual Dongle’s video recording capabilities, output quality, and technical specifications.

Recording Specifications

Resolution and Frame Rate

• Maximum Recording Resolution: 1080p (1920×1080)

• Maximum Frame Rate: 60fps

• Supported Resolutions: Up to 1080p@60fps

Video Encoding

• Codec: H.264 / AVC

• Color Space: YUV 4:2:0

• Color Depth: 8-bit

• Container Format: MP4

HDMI Passthrough

While recording at 1080p, RecDual Dongle supports high-quality passthrough:

• Passthrough Resolution: Up to 4K (3840×2160)

• Passthrough Frame Rate: Up to 60fps

• Latency: Zero latency (real-time)

This means you can:

• Play games on a 4K TV while recording at 1080p

• Watch content in full quality while capturing a 1080p copy

• No impact on viewing experience during recording

File Output

File Format

Recordings are saved as MP4 files with:

• Video track: H.264 encoded at up to 1080p@60fps

• Audio track: AAC encoded at 48kHz, 192Kbps stereo

File Naming

Files are automatically named with timestamps for easy organization.

File Size Estimates

Approximate storage requirements at 1080p@60fps:

Recording Time vs Storage

Recording Time	Approximate File Size	64GB Card Capacity
1 hour	~8-12 GB	~5-7 hours
30 minutes	~4-6 GB
10 minutes	~1.3-2 GB

File sizes vary based on content complexity

Quality Considerations

What RecDual Dongle Supports:

• High-quality 1080p recording

• Smooth 60fps capture for gaming and fast motion

• Hardware-accelerated encoding for consistent quality

• Standard dynamic range (SDR) content

What RecDual Dongle Does NOT Support:

• 4K recording (passthrough only)

• HDR recording (HDR input is converted to SDR)

• Higher than 60fps recording

• 10-bit or 12-bit color depth

Compatibility with Editing Software

RecDual Dongle’s MP4 output is compatible with virtually all video editing software:

• Windows: Adobe Premiere Pro, DaVinci Resolve, Filmora

• Mac: Final Cut Pro, iMovie, Adobe Premiere Pro

• Mobile: Many video editing apps support MP4

• Online: YouTube, Vimeo direct upload support

No transcoding is typically needed for editing or sharing.

Tips for Best Quality

1. Use a High-Quality TF Card: Class 10 or U3/V30 cards ensure smooth recording

2. Ensure Stable Connection: Loose cables can cause recording interruptions

3. Adequate Power: For HDMI recording, use a reliable power adapter

4. Check Source Quality: Recording quality cannot exceed source quality

5. Monitor Storage Space: Keep enough free space to avoid interrupted recordings

Related articles:

RecDual Dongle Specifications does-recdual-dongle-support-4k-recording does-recdual-dongle-support-hdr-recording

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