Thanks, Juan :)

Your code crashes my faustide on firefox and on chromium (both linux).
Here is the error message:

ASSERT : please report this message and the failing DSP file to Faust
developers (file: wasm_instructions.hh, line: 918, version: 2.32.16,
options: -lang wasm-ib -es 1 -single -ftz 0)

When 'realtime compile' is active, the only way to gain control again is
to delete all cookies and cache from the site.

I'll try Dario's workaround now ;)

Cheers, Klaus


On 09.07.21 18:08, Juan Carlos Blancas wrote:
> Hi Klaus, 
> 
> For me ms_envelope and rms_envelope functions are not working properly. I’ve 
> done some test in my Mac Pro with High Sierra, porting without barograph to 
> Max or Supercollider and I get the strange gate behaviour in low levels.
> 
> My workaround at the moment is using ba.slidingMeanp instead of ms_envelope, 
> but it’s 2x cpu intense, so I guess Dario solution of 1plp filter would be 
> the best for the mean square stage.
> 
>>> lp1p(cf, x) = fi.pole(b, x * (1 - b))
>>>    with {
>>>    b = exp(-2 * ma.PI * cf / ma.SR);
>>>    };
>>>    zi_lp(x) = lp1p(1 / Tg, x * x);
> 
> 
> Cheers,
> Juan Carlos
> 
> 
> // Mono Momentary LUFS meter without gate of Julius, using slidingMeanp 
> instead of ms_envelope
> 
> import("stdfaust.lib");
> 
> A48kHz = ( /* 1.0, */ -1.99004745483398, 0.99007225036621);
> B48kHz = (1.0, -2.0, 1.0);
> highpass48kHz = fi.iir(B48kHz,A48kHz);
> highpass = fi.highpass(2, 40);
> 
> boostDB = 4;
> boostFreqHz = 1430;
> highshelf = fi.high_shelf(boostDB, boostFreqHz);
> kfilter = highshelf : highpass;
> 
> MAXN = 262144;
> Tg = 0.4;
> Lk = kfilter <: _*_ : ba.slidingMeanp(Tg*ma.SR, MAXN) : ba.linear2db : *(0.5);
> 
> process = _ <: attach(_, Lk : hbargraph("[1]Momentary LUFS",-70,0));
> 
> //
> 
>> El 9 jul 2021, a las 16:55, Klaus Scheuermann <kla...@posteo.de> escribió:
>>
>> Ha, so I was really on to something ;)
>>
>> Is the bug in the meter or in the envelope?
>> Would you have a workaround for me to get on with the lufs analyser?
>>
>> Thanks, Klaus
>>
>> On 08.07.21 19:19, Julius Smith wrote:
>>> Hi Dario,
>>>
>>> The problem seems to be architecture-dependent.  I am on a Mac (latest
>>> non-beta software) using faust2caqt.  What are you using?
>>>
>>> I do not see the "strange behavior" you describe.
>>>
>>> Your test looks good for me in faust2octave, with gain set to 0.01 (-40
>>> dB, which triggers the display bug on my system).  In
>>> Octave, faustout(end,:) shows
>>>
>>>  -44.744  -44.968  -44.708
>>>
>>> which at first glance seems close enough for noise input and slightly
>>> different averaging windows.  Changing the signal to a constant 0.01, I get
>>>
>>>  -39.994  -40.225  -40.000
>>>
>>> which is not too bad, but which should probably be sharpened up.  The
>>> third value (zi_lp) is right on, of course.
>>>
>>> gain = 0.01; // hslider("Gain [unit:dB]",-70,-70,0,0.1) : ba.db2linear;
>>> sig = gain;  //sig = no.noise * gain;
>>>
>>> On Thu, Jul 8, 2021 at 3:53 AM Dario Sanfilippo
>>> <sanfilippo.da...@gmail.com <mailto:sanfilippo.da...@gmail.com>> wrote:
>>>
>>>    Hi, Julius.
>>>
>>>    I must be missing something, but I couldn't see the behaviour that
>>>    you described, that is, the gating behaviour happening only for the
>>>    display and not for the output.
>>>
>>>    If a removethe hbargraphaltogether, I can still see the strange
>>>    behaviour. Just so we're all on the same page, the strange behaviour
>>>    we're referring to is the fact that, after going back to low input
>>>    gains, the displayed levels are -inf instead of some low,
>>>    quantifiable ones, right?
>>>
>>>    Using a leaky integrator makes the calculations rather inaccurate.
>>>    I'd say that, if one needs to use single-precision, averaging with a
>>>    one-pole lowpass would be best:
>>>
>>>    import("stdfaust.lib");
>>>    zi = an.ms_envelope_rect(Tg);
>>>    slidingSum(n) = fi.pole(.999999) <: _, _@int(max(0,n)) :> -;
>>>    slidingMean(n) = slidingSum(n)/rint(n);
>>>    zi_leaky(x) = slidingMean(Tg*ma.SR, x * x);
>>>    lp1p(cf, x) = fi.pole(b, x * (1 - b))
>>>    with {
>>>    b = exp(-2 * ma.PI * cf / ma.SR);
>>>    };
>>>    zi_lp(x) = lp1p(1 / Tg, x * x);
>>>    Tg = 0.4;
>>>    sig = no.noise * gain;
>>>    gain = hslider("Gain [unit:dB]",-70,-70,0,0.1) : ba.db2linear;
>>>    level = ba.linear2db : *(0.5);
>>>    process = sig <: level(zi) , level(zi_leaky) , level(zi_lp);
>>>
>>>    Ciao,
>>>    Dr Dario Sanfilippo
>>>    http://dariosanfilippo.com <http://dariosanfilippo.com>
>>>
>>>
>>>    On Thu, 8 Jul 2021 at 00:39, Julius Smith <julius.sm...@gmail.com
>>>    <mailto:julius.sm...@gmail.com>> wrote:
>>>
>>>> I think that the problem is in an.ms_envelope_rect,
>>>        particularly the fact that it has a non-leaky integrator. I
>>>        assume that when large values recirculate in the integrator, the
>>>        smaller ones, after pushing the gain down, are truncated to 0
>>>        due to single-precision. As a matter of fact, compiling the code
>>>        in double precision looks fine here.
>>>
>>>        I just took a look and see that it's essentially based on + ~ _
>>>        : (_ - @(rectWindowLenthSamples))
>>>        This will indeed suffer from a growing roundoff error variance
>>>        over time (typically linear growth).
>>>        However, I do not see any noticeable effects of this in my
>>>        testing thus far.
>>>        To address this properly, we should be using TIIR filtering
>>>        principles ("Truncated IIR"), in which two such units pingpong
>>>        and alternately reset.
>>>        Alternatively, a small exponential decay can be added: + ~
>>>        *(0.999999) ... etc.
>>>
>>>        - Julius
>>>
>>>        On Wed, Jul 7, 2021 at 12:32 PM Dario Sanfilippo
>>>        <sanfilippo.da...@gmail.com <mailto:sanfilippo.da...@gmail.com>>
>>>        wrote:
>>>
>>>            I think that the problem is in an.ms_envelope_rect,
>>>            particularly the fact that it has a non-leaky integrator. I
>>>            assume that when large values recirculate in the integrator,
>>>            the smaller ones, after pushing the gain down, are truncated
>>>            to 0 due to single-precision. As a matter of fact, compiling
>>>            the code in double precision looks fine here.
>>>
>>>            Ciao,
>>>            Dr Dario Sanfilippo
>>>            http://dariosanfilippo.com <http://dariosanfilippo.com>
>>>
>>>
>>>            On Wed, 7 Jul 2021 at 19:25, Stéphane Letz <l...@grame.fr
>>>            <mailto:l...@grame.fr>> wrote:
>>>
>>>                « hargraph seems to have some kind of a gate in it that
>>>                kicks in around -35 dB. » humm…. hargraph/vbargrah only
>>>                keep the last value of their written FAUSTFLOAT* zone,
>>>                so once per block, without any processing of course…
>>>
>>>                Have you looked at the produce C++ code?
>>>
>>>                Stéphane
>>>
>>>> Le 7 juil. 2021 à 18:31, Julius Smith
>>>                <julius.sm...@gmail.com <mailto:julius.sm...@gmail.com>>
>>>                a écrit :
>>>>
>>>> That is strange - hbargraph seems to have some kind of
>>>                a gate in it that kicks in around -35 dB.
>>>>
>>>> In this modified version, you can hear that the sound
>>>                is ok:
>>>>
>>>> import("stdfaust.lib");
>>>> Tg = 0.4;
>>>> zi = an.ms_envelope_rect(Tg);
>>>> gain = hslider("Gain [unit:dB]",-10,-70,0,0.1) :
>>>                ba.db2linear;
>>>> sig = no.noise * gain;
>>>> process = attach(sig, (sig : zi : ba.linear2db :
>>>                *(0.5) : hbargraph("test",-70,0)));
>>>>
>>>> On Wed, Jul 7, 2021 at 12:59 AM Klaus Scheuermann
>>>                <kla...@posteo.de <mailto:kla...@posteo.de>> wrote:
>>>> Hi all,
>>>> I did some testing and
>>>>
>>>> an.ms_envelope_rect()
>>>>
>>>> seems to show some strange behaviour (at least to me).
>>>                Here is a video
>>>> of the test:
>>>> https://cloud.4ohm.de/s/64caEPBqxXeRMt5
>>>                <https://cloud.4ohm.de/s/64caEPBqxXeRMt5>
>>>>
>>>> The audio is white noise and the testing code is:
>>>>
>>>> import("stdfaust.lib");
>>>> Tg = 0.4;
>>>> zi = an.ms_envelope_rect(Tg);
>>>> process = _ : zi : ba.linear2db : hbargraph("test",-95,0);
>>>>
>>>> Could you please verify?
>>>>
>>>> Thanks, Klaus
>>>>
>>>>
>>>>
>>>> On 05.07.21 20:16, Julius Smith wrote:
>>>>> Hmmm, '!' means "block the signal", but attach
>>>                should save the bargraph
>>>>> from being optimized away as a result.  Maybe I
>>>                misremembered the
>>>>> argument order to attach?  While it's very simple in
>>>                concept, it can be
>>>>> confusing in practice.
>>>>>
>>>>> I chose not to have a gate at all, but you can grab
>>>                one from
>>>>> misceffects.lib if you like.  Low volume should not
>>>                give -infinity,
>>>>> that's a bug, but zero should, and zero should
>>>                become MIN as I mentioned
>>>>> so -infinity should never happen.
>>>>>
>>>>> Cheers,
>>>>> Julius
>>>>>
>>>>>
>>>>> On Mon, Jul 5, 2021 at 10:39 AM Klaus Scheuermann
>>>                <kla...@posteo.de <mailto:kla...@posteo.de>
>>>>> <mailto:kla...@posteo.de <mailto:kla...@posteo.de>>>
>>>                wrote:
>>>>>
>>>>>      Cheers Julius,
>>>>>
>>>>>
>>>>>
>>>>>      At least I understood the 'attach' primitive now
>>>                ;) Thanks.
>>>>>
>>>>>
>>>>>
>>>>>      This does not show any meter here...
>>>>>      process(x,y) = x,y <: (_,_), attach(x, (Lk2 :
>>>                vbargraph("LUFS",-90,0)))
>>>>>      : _,_,!;
>>>>>
>>>>>      But this does for some reason (although the
>>>                output is 3-channel then):
>>>>>      process(x,y) = x,y <: (_,_), attach(x, (Lk2 :
>>>                vbargraph("LUFS",-90,0)))
>>>>>      : _,_,_;
>>>>>
>>>>>      What does the '!' do?
>>>>>
>>>>>
>>>>>
>>>>>      I still don't quite get the gating topic. In my
>>>                understanding, the meter
>>>>>      should hold the current value if the input
>>>                signal drops below a
>>>>>      threshold. In your version, the meter drops to
>>>                -infinity when very low
>>>>>      volume content is played.
>>>>>
>>>>>      Which part of your code does the gating?
>>>>>
>>>>>      Many thanks,
>>>>>      Klaus
>>>>>
>>>>>
>>>>>
>>>>>      On 05.07.21 18:06, Julius Smith wrote:
>>>>>      > Hi Klaus,
>>>>>      >
>>>>>      > Yes, I agree the filters are close enough.  I
>>>                bet that the shelf is
>>>>>      > exactly correct if we determined the exact
>>>                transition frequency, and
>>>>>      > that the Butterworth highpass is close enough
>>>                to the
>>>>>      Bessel-or-whatever
>>>>>      > that is inexplicably not specified as a filter
>>>                type, leaving it
>>>>>      > sample-rate dependent.  I would bet large odds
>>>                that the differences
>>>>>      > cannot be reliably detected in listening tests.
>>>>>      >
>>>>>      > Yes, I just looked again, and there are
>>>                "gating blocks" defined,
>>>>>      each Tg
>>>>>      > = 0.4 sec long, so that only ungated blocks
>>>                are averaged to form a
>>>>>      > longer term level-estimate.  What I wrote
>>>                gives a "sliding gating
>>>>>      > block", which can be lowpass filtered further,
>>>                and/or gated, etc. 
>>>>>      > Instead of a gate, I would simply replace 0 by
>>>                ma.EPSILON so that the
>>>>>      > log always works (good for avoiding denormals
>>>                as well).
>>>>>      >
>>>>>      > I believe stereo is supposed to be handled
>>>                like this:
>>>>>      >
>>>>>      > Lk2 = _,0,_,0,0 : Lk5;
>>>>>      > process(x,y) = Lk2(x,y);
>>>>>      >
>>>>>      > or
>>>>>      >
>>>>>      > Lk2 = Lk(0),Lk(2) :> 10 * log10 : -(0.691);
>>>>>      >
>>>>>      > but since the center channel is processed
>>>                identically to left
>>>>>      and right,
>>>>>      > your solution also works.
>>>>>      >
>>>>>      > Bypassing is normal Faust, e.g.,
>>>>>      >
>>>>>      > process(x,y) = x,y <: (_,_), attach(x, (Lk2 :
>>>>>      vbargraph("LUFS",-90,0)))
>>>>>      > : _,_,!;
>>>>>      >
>>>>>      > Cheers,
>>>>>      > Julius
>>>>>      >
>>>>>      >
>>>>>      > On Mon, Jul 5, 2021 at 1:56 AM Klaus
>>>                Scheuermann <kla...@posteo.de <mailto:kla...@posteo.de>
>>>>>      <mailto:kla...@posteo.de <mailto:kla...@posteo.de>>
>>>>>      > <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de> <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de>>>> wrote:
>>>>>      >
>>>>>      >
>>>>>      >     > I can never resist these things!   Faust
>>>                makes it too
>>>>>      enjoyable :-)
>>>>>      >
>>>>>      >     Glad you can't ;)
>>>>>      >
>>>>>      >     I understood you approximate the filters
>>>                with standard faust
>>>>>      filters.
>>>>>      >     That is probably close enough for me :)
>>>>>      >
>>>>>      >     I also get the part with the sliding
>>>                window envelope. If I
>>>>>      wanted to
>>>>>      >     make the meter follow slowlier, I would
>>>                just widen the window
>>>>>      with Tg.
>>>>>      >
>>>>>      >     The 'gating' part I don't understand for
>>>                lack of mathematical
>>>>>      knowledge,
>>>>>      >     but I suppose it is meant differently.
>>>                When the input signal
>>>>>      falls below
>>>>>      >     the gate threshold, the meter should stay
>>>                at the current
>>>>>      value, not drop
>>>>>      >     to -infinity, right? This is so 'silent'
>>>                parts are not taken into
>>>>>      >     account.
>>>>>      >
>>>>>      >     If I wanted to make a stereo version it
>>>                would be something like
>>>>>      >     this, right?
>>>>>      >
>>>>>      >     Lk2 = par(i,2, Lk(i)) :> 10 * log10 :
>>>                -(0.691);
>>>>>      >     process = _,_ : Lk2 : vbargraph("LUFS",-90,0);
>>>>>      >
>>>>>      >     Probably very easy, but how do I attach
>>>                this to a stereo
>>>>>      signal (passing
>>>>>      >     through the stereo signal)?
>>>>>      >
>>>>>      >     Thanks again!
>>>>>      >     Klaus
>>>>>      >
>>>>>      >
>>>>>      >
>>>>>      >     >
>>>>>      >     > I made a pass, but there is a small
>>>                scaling error.  I think
>>>>>      it can be
>>>>>      >     > fixed by reducing boostFreqHz until the
>>>                sine_test is nailed.
>>>>>      >     > The highpass is close (and not a source
>>>                of the scale error),
>>>>>      but I'm
>>>>>      >     > using Butterworth instead of whatever
>>>                they used.
>>>>>      >     > I glossed over the discussion of
>>>                "gating" in the spec, and
>>>>>      may have
>>>>>      >     > missed something important there, but
>>>>>      >     > I simply tried to make a sliding
>>>                rectangular window, instead
>>>>>      of 75%
>>>>>      >     > overlap, etc.
>>>>>      >     >
>>>>>      >     > If useful, let me know and I'll propose
>>>                it for analyzers.lib!
>>>>>      >     >
>>>>>      >     > Cheers,
>>>>>      >     > Julius
>>>>>      >     >
>>>>>      >     > import("stdfaust.lib");
>>>>>      >     >
>>>>>      >     > // Highpass:
>>>>>      >     > // At 48 kHz, this is the right highpass
>>>                filter (maybe a
>>>>>      Bessel or
>>>>>      >     > Thiran filter?):
>>>>>      >     > A48kHz = ( /* 1.0, */ -1.99004745483398,
>>>                0.99007225036621);
>>>>>      >     > B48kHz = (1.0, -2.0, 1.0);
>>>>>      >     > highpass48kHz = fi.iir(B48kHz,A48kHz);
>>>>>      >     > highpass = fi.highpass(2, 40); //
>>>                Butterworth highpass:
>>>>>      roll-off is a
>>>>>      >     > little too sharp
>>>>>      >     >
>>>>>      >     > // High Shelf:
>>>>>      >     > boostDB = 4;
>>>>>      >     > boostFreqHz = 1430; // a little too high
>>>                - they should give
>>>>>      us this!
>>>>>      >     > highshelf = fi.high_shelf(boostDB,
>>>                boostFreqHz); // Looks
>>>>>      very close,
>>>>>      >     > but 1 kHz gain has to be nailed
>>>>>      >     >
>>>>>      >     > kfilter = highshelf : highpass;
>>>>>      >     >
>>>>>      >     > // Power sum:
>>>>>      >     > Tg = 0.4; // spec calls for 75% overlap
>>>                of successive
>>>>>      rectangular
>>>>>      >     > windows - we're overlapping MUCH more
>>>                (sliding window)
>>>>>      >     > zi = an.ms_envelope_rect(Tg); // mean
>>>                square: average power =
>>>>>      >     energy/Tg
>>>>>      >     > = integral of squared signal / Tg
>>>>>      >     >
>>>>>      >     > // Gain vector Gv = (GL,GR,GC,GLs,GRs):
>>>>>      >     > N = 5;
>>>>>      >     > Gv = (1, 1, 1, 1.41, 1.41); // left
>>>                GL(-30deg), right GR
>>>>>      (30), center
>>>>>      >     > GC(0), left surround GLs(-110), right
>>>                surr. GRs(110)
>>>>>      >     > G(i) = *(ba.take(i+1,Gv));
>>>>>      >     > Lk(i) = kfilter : zi : G(i); // one
>>>                channel, before summing
>>>>>      and before
>>>>>      >     > taking dB and offsetting
>>>>>      >     > LkDB(i) = Lk(i) : 10 * log10 : -(0.691);
>>>                // Use this for a mono
>>>>>      >     input signal
>>>>>      >     >
>>>>>      >     > // Five-channel surround input:
>>>>>      >     > Lk5 = par(i,5,Lk(i)) :> 10 * log10 :
>>>                -(0.691);
>>>>>      >     >
>>>>>      >     > // sine_test = os.oscrs(1000); // should
>>>                give –3.01 LKFS, with
>>>>>      >     > GL=GR=GC=1 (0dB) and GLs=GRs=1.41 (~1.5 dB)
>>>>>      >     > sine_test = os.osc(1000);
>>>>>      >     >           
>>>>>      >     > process = sine_test : LkDB(0); // should
>>>                read -3.01 LKFS -
>>>>>      high-shelf
>>>>>      >     > gain at 1 kHz is critical
>>>>>      >     > // process = 0,sine_test,0,0,0 : Lk5; //
>>>                should read -3.01
>>>>>      LKFS for
>>>>>      >     > left, center, and right
>>>>>      >     > // Highpass test: process = 1-1' <:
>>>                highpass, highpass48kHz;
>>>>>      // fft in
>>>>>      >     > Octave
>>>>>      >     > // High shelf test: process = 1-1' :
>>>                highshelf; // fft in Octave
>>>>>      >     >
>>>>>      >     > On Sat, Jul 3, 2021 at 1:08 AM Klaus
>>>                Scheuermann
>>>>>      <kla...@posteo.de <mailto:kla...@posteo.de>
>>>                <mailto:kla...@posteo.de <mailto:kla...@posteo.de>>
>>>>>      >     <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de> <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de>>>
>>>>>      >     > <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de> <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de>>
>>>>>      <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de> <mailto:kla...@posteo.de
>>>                <mailto:kla...@posteo.de>>>>> wrote:
>>>>>      >     >
>>>>>      >     >     Hello everyone :)
>>>>>      >     >
>>>>>      >     >     Would someone be up for helping me
>>>                implement an LUFS
>>>>>      loudness
>>>>>      >     analyser
>>>>>      >     >     in faust?
>>>>>      >     >
>>>>>      >     >     Or has someone done it already?
>>>>>      >     >
>>>>>      >     >     LUFS (aka LKFS) is becoming more and
>>>                more the standard for
>>>>>      >     loudness
>>>>>      >     >     measurement in the audio industry.
>>>                Youtube, Spotify and
>>>>>      broadcast
>>>>>      >     >     stations use the concept to
>>>                normalize loudness. A very
>>>>>      >     positive side
>>>>>      >     >     effect is, that loudness-wars are
>>>                basically over.
>>>>>      >     >
>>>>>      >     >     I looked into it, but my programming
>>>                skills clearly
>>>>>      don't match
>>>>>      >     >     the level for implementing this.
>>>>>      >     >
>>>>>      >     >     Here is some resource about the topic:
>>>>>      >     >
>>>>>      >     >     https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>
>>>>>      <https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>>
>>>>>      >     <https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>
>>>>>      <https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>>>
>>>>>      >     <https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>
>>>>>      <https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>>
>>>>>      >     <https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>
>>>>>      <https://en.wikipedia.org/wiki/LKFS
>>>                <https://en.wikipedia.org/wiki/LKFS>>>>
>>>>>      >     >
>>>>>      >     >     Specifications (in Annex 1):
>>>>>      >     >   
>>>>>      >   
>>>>>      
>>>                 
>>> https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>
>>>>>    
>>>                 
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>>
>>>>>      >   
>>>>>      
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>
>>>>>    
>>>                 
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>>>
>>>>>      >     >   
>>>>>      >   
>>>>>      
>>>                 
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>
>>>>>    
>>>                 
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>>
>>>>>      >   
>>>>>      
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>
>>>>>    
>>>                 
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf
>>>                
>>> <https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1770-3-201208-S!!PDF-E.pdf>>>>
>>>>>      >     >
>>>>>      >     >     An implementation by 'klangfreund'
>>>                in JUCE / C:
>>>>>      >     >   
>>>                 https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>
>>>>>      <https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>>
>>>>>      >     <https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>
>>>>>      <https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>>>
>>>>>      >     >   
>>>                 <https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>
>>>>>      <https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>>
>>>>>      >     <https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>
>>>>>      <https://github.com/klangfreund/LUFSMeter
>>>                <https://github.com/klangfreund/LUFSMeter>>>>
>>>>>      >     >
>>>>>      >     >     There is also a free LUFS Meter in
>>>                JS / Reaper by
>>>>>      Geraint Luff.
>>>>>      >     >     (The code can be seen in reaper, but
>>>                I don't know if I
>>>>>      should
>>>>>      >     paste it
>>>>>      >     >     here.)
>>>>>      >     >
>>>>>      >     >     Please let me know if you are up for it!
>>>>>      >     >
>>>>>      >     >     Take care,
>>>>>      >     >     Klaus
>>>>>      >     >
>>>>>      >     >
>>>>>      >     >   
>>>                 _______________________________________________
>>>>>      >     >     Faudiostream-users mailing list
>>>>>      >     >   
>>>                 Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>
>>>>>      <mailto:Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>>
>>>>>      >   
>>>                 <mailto:Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>
>>>>>      <mailto:Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>>>
>>>>>      >     >   
>>>                 <mailto:Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>
>>>>>      <mailto:Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>>
>>>>>      >   
>>>                 <mailto:Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>
>>>>>      <mailto:Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>>>>
>>>>>      >     >   
>>>>>      >   
>>>>>      
>>>                 
>>> https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>
>>>>>    
>>>                 
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>>
>>>>>      >   
>>>>>      
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>
>>>>>    
>>>                 
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>>>
>>>>>      >     >   
>>>>>      >   
>>>>>      
>>>                 
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>
>>>>>    
>>>                 
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>>
>>>>>      >   
>>>>>      
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>
>>>>>    
>>>                 
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>>>>
>>>>>      >     >
>>>>>      >     >
>>>>>      >     >
>>>>>      >     > --
>>>>>      >     > "Anybody who knows all about nothing
>>>                knows everything" --
>>>>>      Leonard
>>>>>      >     Susskind
>>>>>      >
>>>>>      >
>>>>>      >
>>>>>      > --
>>>>>      > "Anybody who knows all about nothing knows
>>>                everything" -- Leonard
>>>>>      Susskind
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> "Anybody who knows all about nothing knows
>>>                everything" -- Leonard Susskind
>>>>
>>>>
>>>> --
>>>> "Anybody who knows all about nothing knows everything"
>>>                -- Leonard Susskind
>>>> _______________________________________________
>>>> Faudiostream-users mailing list
>>>> Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>
>>>>
>>>                
>>> https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>
>>>
>>>
>>>
>>>                _______________________________________________
>>>                Faudiostream-users mailing list
>>>                Faudiostream-users@lists.sourceforge.net
>>>                <mailto:Faudiostream-users@lists.sourceforge.net>
>>>                
>>> https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>                
>>> <https://lists.sourceforge.net/lists/listinfo/faudiostream-users>
>>>
>>>
>>>
>>>        -- 
>>>        "Anybody who knows all about nothing knows everything" --
>>>        Leonard Susskind
>>>
>>>
>>>
>>> -- 
>>> "Anybody who knows all about nothing knows everything" -- Leonard Susskind
>>>
>>>
>>> _______________________________________________
>>> Faudiostream-users mailing list
>>> Faudiostream-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/faudiostream-users
>>>
>>
>>
>> _______________________________________________
>> Faudiostream-users mailing list
>> Faudiostream-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/faudiostream-users
> 


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