Re: tech spec on audio format on the Java Sound Server ?

[Neil C Smith]

Carl,

Firstly, please post support queries to the list. I've CC'd the list.
Answers below.

Thanks, Neil

On 16 February 2012 07:12, Carl H Janson <c...@hdsoundlab.com> wrote:
>
> Is it correct that the JavaSound Server is offering what Java offers with regards to audio formats, e.g. 16bit only, no 24 nor 32 bit ?
>

No. Currently the JavasoundAudioServer is hardcoded to use 16bit
audio (as well as signed and little endian). The JavaSound API is not
necessarily limited to 16bit audio - on Linux I get access to 20, 24
and 32 bit lines as well. You could check with
http://www.jsresources.org/apps/jsinfo.html (use the download
version).

While the hardcoded values seem to offer a good default position, it
would be better to provide a way to make these settable (there's even
a comment to that affect in the current code). Ideally, the
JavasoundAudioServer should be able to handle anything that JavaSound
can, though it will never be able to offer anything more than that!
I'm currently planning on adding an extension mechanism to the
AudioConfiguration class. It's likely that I'll look at passing in an
optional AudioFormat instance as the way of controlling this.

> We have customers rolling in that have hifi setups and therefore is requesting compliance to better than cd quality formats.
>

I hope to work on the extension mechanism next month. If you need
this facility sooner, you could fork the JavasoundAudioServer and play
with the hardcoded values here -
http://code.google.com/p/praxis/source/browse/audio.servers.javasound/src/org/jaudiolibs/audioservers/javasound/JavasoundAudioServer.java#99
All being well, it should work - the conversion code should be able
to handle the different bit sizes.

>
>
> Kind regards
>
> Carl Henrik Janson
>
>
>
> HD SoundLab as
>
> Drammensveien 123, N-0277 Oslo
>
> Phone +47 951 048 00
>
> www.soundpimp.com
>
>
>
>

--
Neil C Smith
Artist : Technologist : Adviser
http://neilcsmith.net

[Carl H Janson]

As assumed, which to my understanding has the consequence that
JackAudioServer should be the natural choice when on Windows, until Java
starts to deliver bitrates and sample rates beyond the cd quality.

Carl

Carl,

Thanks, Neil

--
JAudioLibs - http://code.google.com/p/java-audio-utils/

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