Sustainability of Digital Formats: Planning for Library of Congress Collections |
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Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact |
Full name | Broadcast WAVE file, version 1, with LPCM encoded audio. |
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Description | Broadcast WAVE file, version 1, with LPCM encoded audio. |
Production phase | Used for content in initial, middle, and final states. |
Relationship to other formats | |
Subtype of | WAVE_BWF_1, Broadcast WAVE Audio File Format, Version 1 |
Contains | LPCM, Linear Pulse Code Modulated Audio (LPCM) |
Used by | IMF_Package, Interoperable Master Format (IMF). IMF does not specify a version of Broadcast WAVE. Identified in Warner Brothers IMF specification as of January 2024. |
LC experience or existing holdings | When reformatting analog sound recordings, the Broadcast WAVE format (either version), wrapping LPCM, is used as the archival master format for mono and stereo audio at the Packard Campus for Audio-Visual Conservation and by the American Folklife Center. |
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LC preference | The Broadcast WAVE format (either version), wrapping LPCM, is preferred as the archival master format for mono and stereo audio when reformatting analog sound recordings. The Library is a participant in the Federal Agencies Digital Guidelines Initiative (FADGI) Audio-Visual Working Group that published a recommended guideline for BWF bext metadata conforming to version 1 in 2009, with an update conforming to version 2 in 2012. Additional updates supporting use of the CUE and ADTL chunks were published in 2021. |
Disclosure | See WAVE_BWF_1 and LPCM. |
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Documentation | See WAVE_BWF_1 and LPCM. |
Adoption | See WAVE_BWF_1 and LPCM. |
Licensing and patents | See WAVE_BWF_1 and LPCM. |
Transparency | See WAVE_BWF_1 and LPCM. |
Self-documentation | See WAVE_BWF_1 and LPCM. |
External dependencies | See WAVE_BWF_1 and LPCM. |
Technical protection considerations |
Sound | |
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Normal rendering | Supported |
Fidelity (high audio resolution) | See LPCM. |
Multiple channels | See WAVE_BWF_1. |
Support for user-defined sounds, samples, and patches | See WAVE_BWF_1. |
Functionality beyond normal rendering | Not applicable. |
Tag | Value | Note |
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Filename extension | wav |
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Internet Media Type | See related format. | See WAVE. |
Magic numbers | See related format. | See WAVE. |
Pronom PUID | See notes |
Pronom's fmt/704 covers Broadcast WAVE 1 PCM Encoding but this is not precisely the same as an LPCM encoding. |
Wikidata Title ID | See related format. |
General | |
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History |
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