Recording/playback/Transfer speed
Wellcome additional element. Not Mandatory
Definition
Speed at which a film/audio recording is recorded or intended to be reproduced.
008 and note?
When to record this information?
Most files are at the same speed/standard speeds.
Only need to record this information when it is unsualNot sure i
Where to find this information?
Information can be found on either:
the container
accompanying material
wrapper of metadata in a digital file
reported by authoritative secondary sources such as filmographies, censorship visas, etc
sometimes speed comes from the vendor when the item is being digitised.
If you cannot find this information easily or you are not sure, leave it blank
Format
inches per second (ips)
revolutions per minute (rpm)
frames per second (fps)
feet/meters per second
Standard play
Long play
Standard Long Play/Extended Play
Common examples
1.875 ips
Some 4 track cassette devices (portastudios) run at 3.75 ipc
7.5 ips
15 ips (professional standard)
30 ips (some analogue machines
35 rpm
45 rpm
78 rpm
Standard play
Long play
Standard Long Play/Extended Play
Notes
Frame Rate and Transfer Speed can sometimes be the same thing, and at other times different, depending on whether it is an Item that is being scanned into a digital file or an Item that is a digital file to start with. For example, a silent film that was shot at a 16 fps frame rate could be transferred at 23.98 fps. In this case, the resulting digital file would have a frame rate of 23.98, even though the original film is 16 fps [FIAF 3.1.5.12]
Source for common examples - https://www.sfu.ca/~gotfrit/ZAP_Sept.3_99/t/tapespeed.html
Last updated