---
title: DeviceSampleRateChanged
framework: audiodriverkit
role: symbol
role_heading: Instance Method
path: audiodriverkit/iouseraudiostream/devicesampleratechanged
---

# DeviceSampleRateChanged

Updates stream formats, in response to the owning audio device changing its sample rate.

## Declaration

```occ
kern_return_t DeviceSampleRateChanged(double in_sample_rate);
```

## Parameters

- `in_sample_rate`: The new sample rate.

## Return Value

Return Value kIOReturnSuccess on success, or another value if an error occurs. For a list of error codes, see Error Codes.

## Discussion

Discussion This method goes through all the available stream formats and selects the closet format with the matching sample rate. Calling this method results in a call to the stream’s HandleChangeCurrentStreamFormat to update its format.

## See Also

### Supporting Sample Rate Changes

- [HandleChangeSampleRate](audiodriverkit/iouseraudiodevice/handlechangesamplerate.md)