28 Jul IEC Standard | Digital audio – Interface for non-linear PCM encoded audio bitstreams applying IEC – Part Non-linear. INTERNATIONAL. STANDARD. IEC. First edition. Digital audio –. Interface for non-linear PCM encoded audio bitstreams applying IEC INTERNATIONAL. STANDARD. IEC. Second edition. Digital audio –. Interface for non-linear PCM encoded audio bistreams applying IEC.
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The characteristics of a decoded audio stream on the target device. Recommended for surround-sound high definition movies.
GstAudio IEC GStreamer Base Plugins Library Reference Manual
The characteristics of an encoded audio stream to be transmitted. Maximum bit rate in an audio frame is bps. Maximum rate in an audio frame is bps. To represent an encoded audio stream to be transmitted over an IEC compatible interface, an application must provide: With the increase in media storage devices that require compressed audio formats, applications must identify, describe, and use a variety of new encoded audio content for transmitting content from PCs to devices such as HDMI or DisplayPort receiver.
Recommended for over-the-air music and streaming.
The new structure explicitly specifies the effective number of channels, sample size, and data rate of a non-PCM format. For a non-PCM format, these three members have been commandeered to store information about the compressed data in the audio stream.
However, this structure is also not adequate in describing the stream for IEC transmissions because it was intended to represent a single set of characteristics and used for uncompressed, multi-channel PCM data.
With this information, an application can infer the quality level of ied non-PCM stream after it is decompressed and played. When Dolby Digital Plus content is transmitted over IECthe link-sampling rate must be four times the sampling rate of the content. Since Dolby MAT 2.
To represent an encoded audio stream to be transmitted over an IEC compatible interface, an application must provide:. The GUIDs for the compressed audio formats that are transmitted in high bit-rate audio sample packets are listed in the following table. Based on the information in this structure, a user or an application might have difficulty inferring the quality uec of the non-PCM stream.
Dolby Digital Plus supports content sample rates of 32 KHz, The GUIDs for the compressed audio formats that are available as standard IEC encoded audio formats are listed in the following table. Recommended for surround-sound standard definition movies.
The GUIDs for the compressed audio formats that are not supported by the HD audio class driver and can be implemented by third-party solutions are listed in the following table.