---
title: SMPTETimeType.type30Drop
framework: coreaudiotypes
role: symbol
role_heading: Case
path: coreaudiotypes/smptetimetype/type30drop
---

# SMPTETimeType.type30Drop

## Declaration

```swift
case type30Drop
```

## Discussion

Discussion 30 video frames per second, with video-frame numbers adjusted to ensure that the timecode matches elapsed clock time.

## See Also

### Constants

- [SMPTETimeType.type2398](coreaudiotypes/smptetimetype/type2398.md)
- [SMPTETimeType.type24](coreaudiotypes/smptetimetype/type24.md)
- [SMPTETimeType.type25](coreaudiotypes/smptetimetype/type25.md)
- [SMPTETimeType.type2997](coreaudiotypes/smptetimetype/type2997.md)
- [SMPTETimeType.type2997Drop](coreaudiotypes/smptetimetype/type2997drop.md)
- [SMPTETimeType.type30](coreaudiotypes/smptetimetype/type30.md)
- [SMPTETimeType.type50](coreaudiotypes/smptetimetype/type50.md)
- [SMPTETimeType.type5994](coreaudiotypes/smptetimetype/type5994.md)
- [SMPTETimeType.type5994Drop](coreaudiotypes/smptetimetype/type5994drop.md)
- [SMPTETimeType.type60](coreaudiotypes/smptetimetype/type60.md)
- [SMPTETimeType.type60Drop](coreaudiotypes/smptetimetype/type60drop.md)