Function

vDSP_vdbconD(_:_:_:_:_:_:_:)

Converts double-precision power or amplitude values to decibel values.

Declaration

func vDSP_vdbconD(_ __A: UnsafePointer<Double>, _ __IA: vDSP_Stride, _ __B: UnsafePointer<Double>, _ __C: UnsafeMutablePointer<Double>, _ __IC: vDSP_Stride, _ __N: vDSP_Length, _ __F: UInt32)

Discussion

This function is the same as vDSP_vdbcon, except for the types of vectors A and C and scalar *B.

See Also

Single-Vector Conversion to Decibel Equivalents

static func amplitudeToDecibels<U>(U, zeroReference: Double) -> [Double]

Returns double-precision amplitude values converted to decibel values.

static func amplitudeToDecibels<U>(U, zeroReference: Float) -> [Float]

Returns single-precision amplitude values converted to decibels.

static func powerToDecibels<U>(U, zeroReference: Double) -> [Double]

Returns double-precision power values converted to decibel values.

static func powerToDecibels<U>(U, zeroReference: Float) -> [Float]

Returns single-precision power values converted to decibel values.

static func convert<U, V>(amplitude: U, toDecibels: inout V, zeroReference: Double)

Converts double-precision amplitude values to decibel values.

static func convert<U, V>(amplitude: U, toDecibels: inout V, zeroReference: Float)

Converts single-precision amplitude values to decibel values.

static func convert<U, V>(power: U, toDecibels: inout V, zeroReference: Double)

Converts double-precision power values to decibel values.

static func convert<U, V>(power: U, toDecibels: inout V, zeroReference: Float)

Converts single-precision power values to decibel values.