# freqz

Frequency response of the multirate multistage filter

## Description

`[`

returns the complex frequency response, `h`

,`f`

] = freqz(`sysobj`

,`n`

,`range`

)`h`

, of the multirate
multistage filter System object™ and the frequency vector `f`

at which
`h`

is computed. `n`

is the number of
frequency points, and `range`

is the frequency range over which
the response is computed.

For the sample rate converter object, the sample rate is the larger of
`InputSampleRate`

and
`OutputSampleRate`

.

## Examples

## Input Arguments

## Output Arguments

## Version History

**Introduced in R2018a**

## See Also

### Functions

`cost`

|`info`

|`visualizeFilterStages`

|`cost`

|`getActualOutputRate`

|`getFilters`

|`info`

|`getRateChangeFactors`