[X3D-Public] potential free audio formats for X3D - ogg and flac

Dave A dave at realmofconcepts.com
Fri May 10 10:41:22 PDT 2013


You know, I would like that. I understand that wav and mp3 are probably 
the most common files out there, but if there are technical or financial 
reasons to avoid them, that would be up to the app developer to support. 
But if it's free and the code is available, it just makes sense. Then, 
if someone wants to make content that 'just works everywhere' they will 
know to use the base-line standard universally-supported assets.

Dave A.

On 5/10/2013 8:40 AM, Don Brutzman wrote:
> Of broad interest:  Wikipedia is now support the .ogg vorbis audio 
> format.
>     http://en.wikipedia.org/wiki/List_of_national_anthems
>     http://en.wikipedia.org/wiki/Ogg#File_format
> Of further interest:  FLAC (Free Lossless Audio Codec)
>     http://en.wikipedia.org/wiki/Flac
> Broad question:  shall we add .ogg vorbis and FLAC to the list of 
> _required_ audio formats for X3D?
>     16.4.1 AudioClip
>     http://www.web3d.org/files/specifications/19775-1/V3.3/Part01/components/sound.html#AudioClip 
>> Browsers shall support at least the wavefile format in uncompressed 
>> PCM format (see [WAV]). It is recommended that browsers also support 
>> the MIDI file type 1 sound format (see 2.[MIDI]) and the MP3 
>> compressed format (see 2.[I11172-1]). MIDI files are presumed to use 
>> the General MIDI patch set. 9.2.1 URLs contains details on the url 
>> field.
> X3D working group:  we should also consider improving the aural 
> spatialization model in next year's X3D v3.4.
>     16.4.2 Sound
>     http://www.web3d.org/files/specifications/19775-1/V3.3/Part01/components/sound.html#Sound 
> all the best, Don

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