<< Click to display table of contents >> TRVAudioPlayer.EncodeAudioCodec, EncodeAudioCodecName, EncodeBitrate, EncodeChannels, EncodeSampleFormat, EncodeSampleRate

The properties defining parameters for sound recording.

property EncodeAudioCodec: TRVAudioCodec;

property EncodeAudioCodecName: String;

property EncodeBitrate: Integer;

property EncodeSampleRate: Integer;
property EncodeChannels: Integer;
property EncodeSampleFormat: TRVSampleFormat;

EncodeSampleRate is a number of audio samples played in 1 second. EncodeSampleFormat defines format of each audio sample.

EncodeChannels is a number of audio channels (1 – mono, 2 – stereo, etc.).

EncodeBitrate is a number of bits processed in 1 second when playing sound from a recorded file, it affects compression quality.

EncodeAudioCodec is a codec type. It must correspond to the extension of OutputFileName. This is a recommended way to specify the file format. You can use GetListOfAvailableFFmpegAudioCodecs function to get possible values of this property.

EncodeAudioCodecName is a codec name. This is an alternative way to specify the file format. It is useful if you want to use a codec that is not default for the file format (such as codecs that uses a hardware acceleration and depends on a specific hardware). If the specified codec is not available, the component falls back to EncodeAudioCodec. You can use GetListOfAudioEncoders function to get possible values of this property.

Assign Recording = True to start recording.

If you assign values to these properties while sound is being recorded, recording is stopped.

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.

 

Default values

•EncodeBitrate: 64000

•EncodeSampleRate: 8000

•EncodeChannels: 1

•EncodeAudioCodec: rvmeacWAV

•tEncodeSampleFormat: rvsf8