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Dĺžka záznamu vs. Dátový tok

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Surely you've been in a situation where you needed to make a decision to buy this or that product, but you didn't have enough information. That's why we have prepared for you comparison recordings of microphones and other products we offer. In addition, in the description of the tested audio products you will now be able to listen to, or download, an unedited recording that was recorded using the device.

However, let's go back to the tape recording and recall the data stream values used by the different systems.

  • Mini DV/HDV= 3.125 MB/s (25 Mbps)FireWire 400
    • : 49.15 MB/s (393.22 Mbps)
  • DVC= 6.25 MB/s (50 Mb/s)FireWire 800
    • : 98.3 MB/s (786.43 Mb/s)
  • DVCPRO (HD)= 12.5 MB/s (100 Mb/s)USB 2.0
    • : 60 MB/s (480 Mb/s)
  • HDCAM= 17.5 MB/s (140 Mb/s)USB 3.0
    • : 300 MB/s (2.5 Gb/s)
  • HDCAM-SR= 55 MB/s (440 Mb/s)Thunderbolt
: 600 MB/s (5 Gb/s)

Since we need to get the recording from the tape media to the computer, we need to connect a camera or player/recorder via the input interface. For tape recording, the interface most commonly used is calledFireWire (iLink/IEEE 1394)

.

See the article above for an overview of the maximum data transfer rates for each interface. In addition toFireWire, here you will findUSB 2.0

,

USB 3.0 orThunderbolt

.

As we have already indicated above, the recording quality is determined by the bitrate. The higher this value, the better the recording quality. At the same time, however, it is also true that as the bitrate increases, the size of the stored data will also increase. That's why we have prepared a graphical comparison that gives an overview of several commonly used bitrate values. The values shown are in minutes and the length of the graph represents the capacity of a 32 GB or 64 GB SD card. We chose these capacities because they are probably the most used sizes for video recording.

More information can be found on our blog:

Date: 07. 07. 2014, Category: News