rvaudioplayer TRVAudioPlayer

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A sound playing and recording component.

Unit MRVAudioPlayer;

Syntax

TRVAudioPlayer = class (TCustomRVAudioPlayer)

hmtoggle_arrow1Hierarchy

Description

This component must be linked to TRVMicrophone or TRVCamReceiver components to play sound.

Without TRVAudioPlayer, TRVMicrophone cannot play or record sound. TRVCamReceiver can play sound even without TRVAudioPlayer, but only on the default audio output device, with default sound parameters, and without recording to a file.

To play sound with this component, assign it to TRVMicrophone.AudioOutput or TRVCamReceiver.AudioOutput properties.

Playing sound

See the topic on TCustomRVAudioPlayer for properties controlling sound playing.

Recoding

The component can record sound to a file. FFmpeg library must be available to the application for this feature.

The component supports recording to mp3, ogg, wav, flac and other formats, see EncodeAudioCodec property.

Warning: Some audio formats may be patent-protected in some countries, and supporting these formats will require from you obtaining licenses from the patent owners.

Recording is started when you assign True to Recording property. Sound is recorded to OutputFileName.

Recording is stopped when you assign False to Recording property, or change any of Encode* properties. When it is stopped, OnStopRecording occurs.

Alternatively, you can use TRVCamRecorder component for sound recording.