---
title: Conversion to decibel equivalents
framework: accelerate
role: collectionGroup
role_heading: API Collection
path: accelerate/conversion-to-decibel-equivalents
---

# Conversion to decibel equivalents

Convert vectors that contain power or amplitude data to decibels.

## Topics

### Converting single-precision power or amplitude values to decibel values

- [amplitudeToDecibels(_:zeroReference:)](accelerate/vdsp/amplitudetodecibels(_:zeroreference:)-88bpy.md)
- [powerToDecibels(_:zeroReference:)](accelerate/vdsp/powertodecibels(_:zeroreference:)-861j5.md)
- [convert(amplitude:toDecibels:zeroReference:)](accelerate/vdsp/convert(amplitude:todecibels:zeroreference:)-83uy1.md)
- [convert(power:toDecibels:zeroReference:)](accelerate/vdsp/convert(power:todecibels:zeroreference:)-5u3vs.md)

### Converting double-precision power or amplitude values to decibel values

- [amplitudeToDecibels(_:zeroReference:)](accelerate/vdsp/amplitudetodecibels(_:zeroreference:)-2cgik.md)
- [powerToDecibels(_:zeroReference:)](accelerate/vdsp/powertodecibels(_:zeroreference:)-4b0qz.md)
- [convert(amplitude:toDecibels:zeroReference:)](accelerate/vdsp/convert(amplitude:todecibels:zeroreference:)-4io4p.md)
- [convert(power:toDecibels:zeroReference:)](accelerate/vdsp/convert(power:todecibels:zeroreference:)-3aiv4.md)

## See Also

### Vector conversion functions

- [Type conversion](accelerate/type-conversion.md)
- [Complex vector conversion](accelerate/complex-vector-conversion.md)
- [Polar-rectangular conversion](accelerate/polar-rectangular-conversion.md)