1e41f4b71Sopenharmony_ci# OH_AudioInfo 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## Overview 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ciThe OH_AudioInfo struct describes the audio information. 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ciTo perform both external capture (using microphones) and internal capture, **audioSampleRate** and **audioChannels** must be the same for both audio channels. 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**System capability**: SystemCapability.Multimedia.Media.AVScreenCapture 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci**Since**: 10 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci**Related module**: [AVScreenCapture](_a_v_screen_capture.md) 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci## Summary 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci### Member Variables 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci| Name| Description| 23e41f4b71Sopenharmony_ci| -------- | -------- | 24e41f4b71Sopenharmony_ci| [OH_AudioCaptureInfo](_o_h___audio_capture_info.md) [micCapInfo](#miccapinfo) | External audio capture information.| 25e41f4b71Sopenharmony_ci| [OH_AudioCaptureInfo](_o_h___audio_capture_info.md) [innerCapInfo](#innercapinfo) | Internal audio capture information.| 26e41f4b71Sopenharmony_ci| [OH_AudioEncInfo](_o_h___audio_enc_info.md) [audioEncInfo](#audioencinfo) | Audio encoding information, which is not required for raw streams.| 27e41f4b71Sopenharmony_ci 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci## Member Variable Description 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci 32e41f4b71Sopenharmony_ci### audioEncInfo 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ci``` 35e41f4b71Sopenharmony_ciOH_AudioEncInfo OH_AudioInfo::audioEncInfo 36e41f4b71Sopenharmony_ci``` 37e41f4b71Sopenharmony_ci 38e41f4b71Sopenharmony_ci**Description** 39e41f4b71Sopenharmony_ci 40e41f4b71Sopenharmony_ciAudio encoding information, which is not required for raw streams. 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci### innerCapInfo 45e41f4b71Sopenharmony_ci 46e41f4b71Sopenharmony_ci``` 47e41f4b71Sopenharmony_ciOH_AudioCaptureInfo OH_AudioInfo::innerCapInfo 48e41f4b71Sopenharmony_ci``` 49e41f4b71Sopenharmony_ci 50e41f4b71Sopenharmony_ci**Description** 51e41f4b71Sopenharmony_ci 52e41f4b71Sopenharmony_ciInternal audio capture information. 53e41f4b71Sopenharmony_ci 54e41f4b71Sopenharmony_ci 55e41f4b71Sopenharmony_ci### micCapInfo 56e41f4b71Sopenharmony_ci 57e41f4b71Sopenharmony_ci``` 58e41f4b71Sopenharmony_ciOH_AudioCaptureInfo OH_AudioInfo::micCapInfo 59e41f4b71Sopenharmony_ci``` 60e41f4b71Sopenharmony_ci 61e41f4b71Sopenharmony_ci**Description** 62e41f4b71Sopenharmony_ci 63e41f4b71Sopenharmony_ciExternal audio capture information. 64