1# OH_AudioInfo 2<!--Kit: Media Kit--> 3<!--Subsystem: Multimedia--> 4<!--Owner: @zzs_911--> 5<!--Designer: @stupig001--> 6<!--Tester: @xdlinc--> 7<!--Adviser: @zengyawen--> 8 9## Overview 10 11The struct describes the audio information. 12 13To perform both external capture (using microphones) and internal capture, **audioSampleRate** and **audioChannels** must be the same for both audio channels. 14 15**Since**: 10 16 17**Related module**: [AVScreenCapture](capi-avscreencapture.md) 18 19**Header file**: [native_avscreen_capture_base.h](capi-native-avscreen-capture-base-h.md) 20 21## Summary 22 23### Member Variables 24 25| Name| Description| 26| -- | -- | 27| [OH_AudioCaptureInfo](capi-avscreencapture-oh-audiocaptureinfo.md) micCapInfo | External audio capture information.| 28| [OH_AudioCaptureInfo](capi-avscreencapture-oh-audiocaptureinfo.md) innerCapInfo | Internal audio capture information.| 29| [OH_AudioEncInfo](capi-avscreencapture-oh-audioencinfo.md) audioEncInfo | Audio encoding information, which is not required for raw streams.| 30