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METHOD AND DEVICE FOR NORMALIZED PLAYING AUDIO MEDIADATA WITH EMBEDDED VOLUME METADATA AND WITHOUT THEM ON NEW MEDIA DEVICES
METHOD AND DEVICE FOR NORMALIZED PLAYING AUDIO MEDIADATA WITH EMBEDDED VOLUME METADATA AND WITHOUT THEM ON NEW MEDIA DEVICES
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机译:在新媒体设备上没有嵌入音量元数据的情况下正常播放音频媒体数据的方法和设备
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摘要
FIELD: physics.;SUBSTANCE: device decodes a bitstream containing audio data and volume metadata containing a reference loudness value to generate an audio output signal. The device comprises a signal processor comprising a gain control device configured to adjust the output audio signal level. The gain control device includes a reference volume decoder configured to generate a loudness value, a gain calculator configured to calculate the gain value based on the loudness value and based on the sound power control value, and a volume processor configured to control the volume of the audio output signal based on the gain value.;EFFECT: providing the ability to normalize the playback volume both the content containing metadata of loudness, and the content that does not contain volume metadata.;16 cl, 5 dwg
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