linuxaudio.org

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Fons Adriaensen a écrit :

quoted text
> Hello all,

>

> The first release of jkmeter is now available in the

> usual place:

>

>

>

> 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  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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