[Consortium] [LAU] First release of jkmeter

Raphaël Doursenaud rdoursenaud at free.fr
Sun Aug 3 10:34:05 EDT 2008

Hash: SHA1

Fons Adriaensen a écrit :
> Hello all,
> The first release of jkmeter is now available in the
> usual place:
> <www.kokkizinita.net/linuxaudio/downloads>
> Also updates of japa and jnoise (mostly maintenance,
> but see also below).
> From the README:
> jkmeter-0.1.0 (03/08/2008)
> --------------------------
> Jkmeter is a horizontal or vertical bargraph level
> meter based on the ideas of mastering guru Bob Katz.
> See <http://www.digido.com/bob-katz/index.php> and
> follow the links on 'level practices'.
> This is the type of meter you want for live recording,
> mixing and mastering. It probably makes no sense to
> use it on all tracks of a DAW, where keeping digital
> level within limits is the main purpose of metering.
> This release implements the K-20 meter. Future
> releases will include the K-14 meter as well.
> A K-meter displays both the true RMS level and the
> digital peak level. The ballistics as defined by Bob
> Katz are somewhat ambiguous. In this implementation 
> the RMS meter is about 15% faster than an VU, but
> without the overshoot. This provides a good indication
> of subjective loudness.
> Instead of providing extra gain for the RMS level,
> the K-meter displays it on the same scale as the
> digital peak level, but puts the '0dB' mark and the
> color change well below the OdB full scale level.
> For the K-20 meter it is 20dB down, for the K-14
> this is (surprise !) 14 dB. 
> To use the meter as envisaged by Bob Katz, you
> should have a fixed monitoring level, adjusted
> so that pink noise indicating 0dB on the meter
> corresponds to 83 dB(C) (from each speaker) as
> indicated by an sound level meter. Note the (C)
> - not (A) - weighting.
> As of release 0.4.0, both japa and jnoise provide
> a pink noise source at exactly this level.
> The current release does not include the 22kHz
> lowpass filter required for frequencies such as
> 96kHz and higher.
> Enjoy !
Thanks a lot! It's been some time I was waiting for such a meter!

Of course the adress is : http://www.kokkinizita.net/linuxaudio/downloads/

- --
Raphaël Doursenaud
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