IEC 61937 PDF

IEC /AMD Standard | Amendment 1 – Digital audio – Interface for non-linear PCM encoded audio bitstreams applying IEC. IEC Standard | Digital audio – Interface for non-linear PCM encoded audio bitstreams applying IEC – Part MPEG-H. IEC /AMD Standard | Amendment 2 – Digital audio – Interface for non-linear PCM encoded audio bitstreams applying IEC.

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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. To represent an encoded audio stream to be transmitted over an IEC compatible interface, an application must provide: To represent an encoded audio stream to be transmitted over an IEC compatible interface, an application must provide:.

With this information, an application can infer the quality level of the non-PCM stream after it is decompressed and played.

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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. Recommended for surround-sound standard definition movies. Maximum rate in an audio frame is bps.

The GUIDs for the compressed audio formats that are transmitted in high bit-rate audio sample packets are listed in the following table. The characteristics of a decoded audio stream on the target iev. Maximum bit rate in an audio frame is bps.

Since Dolby MAT 2. Recommended for over-the-air music and streaming. For a non-PCM format, these three members have been commandeered to store information about the compressed data in the audio stream.

Recommended for surround-sound high definition movies. Based on the information in this structure, a user or an application might have difficulty inferring the quality level of the non-PCM stream.

When Dolby Digital Plus content is transmitted over IECthe link-sampling rate must be four times the sampling rate of the content. The GUIDs for the compressed audio formats that are available as standard IEC encoded audio formats are listed in the following table.

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Representing Formats for IEC Transmissions – Windows applications | Microsoft Docs

The characteristics of an encoded audio stream to be transmitted. 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 6137 transmitting content from PCs to devices such as HDMI or DisplayPort receiver. The new structure explicitly specifies the effective number of channels, sample size, and data rate of a non-PCM format.

Dolby Digital Plus supports content sample rates of 32 Ied,