程序包 ohos.media.audio

Provides applications with interfaces to adjust the audio volume, manage the audio focus, and control audio recording and playback.

从以下版本开始:

1

接口概要

接口	说明
AudioDeviceChangeObserver	Provides a callback to listen for device state changes caused by disconnection and connection.
AudioInterrupt.InterruptListener	Listens for an audio interruption message.
AudioWaver.FrequencyDataObserver	Provides an observer to listen for frequency-domain audio data.
AudioWaver.WaveDataObserver	Provides an observer to listen for time-domain audio data.
FrameIntervalObserver	Provides an observer to listen for the playback or recording of audio frames at intervals.
FramePositionObserver	Provides an observer to listen for the playback or recording of audio frames at specific positions.
SoundPlayer.OnCreateCompleteListener	Listener used to monitor the successful creation of sound resources, using in setOnCreateCompleteListener.

类概要

类	说明
AudioCapturer	Provides interfaces for applications to implement PCM audio recording and pausing functions.
AudioCapturerCallback	Provides notifications about capturer configuration updates.
AudioCapturerConfig	Provides audio capturer configuration.
AudioCapturerInfo	Provides the parameter structure required for audio recording, such as the audio stream information, session ID, buffer size, input source, and distributed device ID.
AudioCapturerInfo.Builder	A builder of AudioCapturerInfo objects.
AudioDeviceChangeType	Defines state changes of audio devices.
AudioDeviceDescriptor	Provides audio device details.
AudioEqualizer	Represents an audio equalizer, which is used to adjust the frequency response of a specific music source or main output mix sound.
AudioInterrupt	An audio interruption management mechanism used to resolve audio playback conflicts among multiple applications.
AudioManager	Manages audio information, controls audio devices, adjusts the volume, and manages the audio focus.
AudioRenderer	Provides interfaces for applications to play, pause, and stop pulse-code modulation (PCM) audio.
AudioRenderer.ChannelVolume	Specifies the volume of audio channels.
AudioRenderer.SpeedPara	Provides parameters related to the playback speed and pitch.
AudioRenderer.SpeedPara.Builder	Builder class for AudioRenderer.SpeedPara objects.
AudioRendererCallback	Provides callbacks for audio playback information or state changes.
AudioRendererInfo	Provides the parameter structure required for audio playback, such as audio stream information, session ID, buffer size, offload mode flag, output flag, and distributed device ID.
AudioRendererInfo.Builder	A builder of AudioRendererInfo objects.
AudioStreamInfo	Provides audio stream information.
AudioStreamInfo.Builder	Provides builders for AudioStreamInfo objects.
AudioWaver	Provides the audio visualization feature.
EchoCancelerEffect	The EchoCancelerEffect class provides echo cancel effect attach to AudioCapturer.
GainControlEffect	The GainControlEffect class provides gain control effect attach to AudioCapturer.
NoiseSuppressorEffect	The NoiseSuppressorEffect class provides noise suppress effect attach to AudioCapturer.
SoundEffect	Manages sound effects.
SoundEffect.SoundEffectInfo	Provides sound effect information.
SoundPlayer	Manages and plays audio resources of an application.
SoundPlayer.AudioVolumes	Sets the volume of audio channels.
SoundPlayer.SoundPlayerParameters	Provides SoundPlayer parameters for a playback task.
Timestamp	Represents the timestamp information, including the system time used for audio stream playback and recording, and the timestamp position of the frame that is being played or recorded.
ToneDescriptor	Describes a tone.

枚举概要

枚举	说明
AudioCapturer.State	Describes recording states.
AudioCapturerInfo.AudioInputSource	Describes audio input sources.
AudioDeviceDescriptor.DeviceFlag	Describes audio device flags.
AudioDeviceDescriptor.DeviceRole	Describes audio device roles.
AudioDeviceDescriptor.DeviceType	Describes audio device types.
AudioManager.AudioRingMode	Describes ringer modes.
AudioManager.AudioVolumeType	Describes audio stream types.
AudioManager.CallState	Describes call states.
AudioManager.RingtoneType	Describes ringtone types.
AudioRenderer.PlayMode	Describes playback modes.
AudioRenderer.State	Describes player status.
AudioRendererInfo.AudioStreamOutputFlag	Defines audio stream output flags.
AudioRendererInfo.PrivilegedMode	Enumerates the privileged modes used for audio stream playback.
AudioStreamInfo.AudioStreamFlag	Describes audio stream flags.
AudioStreamInfo.ChannelMask	Describes the channel mask.
AudioStreamInfo.ContentType	Describes types of audio stream content.
AudioStreamInfo.EncodingFormat	Describes the stream encoding format.
AudioStreamInfo.StreamType	Describes audio stream type.
AudioStreamInfo.StreamUsage	Indicates the audio stream usage type.
SoundPlayer.SoundType	Indicates the system sound type.
Timestamp.Timebase	Enumerates the time base of this Timestamp.
ToneDescriptor.ToneType	The ToneType define different dtmf type.

异常错误概要

异常错误	说明
AudioRemoteException	Provides audio management exception information.