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https://issues.apache.org/jira/browse/NIFI-615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15124386#comment-15124386
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Joe Skora commented on NIFI-615:
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I'm planning to work on this and would appreciate any input on the properties
and formats that need to be supported.
My preliminary research shows some common WAV file metadata includes, but might
not be limited to
* audio format (pcm/mp3/gsm),
* framerate or bitrate (fps/Kbps), and
* framelength or size (frames/bytes), and time (seconds).
Also, WAV files can optionally include blocks of other metadata formats such as
* XMP - Extensible Metadata Platform,
* ID3 - MP3 metadata including title, artist, album, year, etc., and
* other possible metadata formats.
Beyond WAV files, there are other audio file formats as well, such as AAC,
AC-3, MP2/MP3, OGG/VORBIS, etc.
*Your thoughts and input will be especially appreciated on two questions:*
# *For WAV files, what other metadata formats beyond the standard WAV file
attributes should the processor extract?* (if present)
# *Should the initial implementation of the processor handle other audio
formats or at least be designed for future support of other formats such as
MP3, OGG, etc.?* (or should that be left for future enhancements or other
processors)
References:
* [Wikipedia WAV|https://en.wikipedia.org/wiki/WAV]
** [Extensible Metadata
Platform|https://en.wikipedia.org/wiki/Extensible_Metadata_Platform]
** [MP3 ID3|https://en.wikipedia.org/wiki/ID3]
* [WAV & BWF Metadata Guide|http://wavmetadata.blogspot.com/]
> Create a processor to extract WAV file characteristics
> ------------------------------------------------------
>
> Key: NIFI-615
> URL: https://issues.apache.org/jira/browse/NIFI-615
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Brandon DeVries
> Assignee: Joe Skora
> Priority: Minor
>
> Create a processor to extract information from a WAV file, including
> encoding, bit rate, metadata, etc...
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