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Free automatic stereo balancing plug-in!
Automatically evens out L/R gain errors, to prevent over-enhancing channel balance errors.
ITU BS. 1770 loudness-based, not peak based.
[attachment=0:2xzb42pq]dsp_AutoBalance.zip[/attachment:2xzb42pq]
Best,
///LeifCan you make a quick doc about this ?
What can it do exactly ?
Wich are recommanded parameters ?
What’s the order place of this dsp in dsp chain with impact and clunk for example ….What are the attack and release times for this plug in?
Attack and Release times are as fast as the loudness measurement, which you can configure. The default settings are +/- 1.5dB, 3 seconds measurement time. However, at Radio 88 we just switched it to +/- 6dB yesterday so that it can really correct channel imbalance errors.
The purpose of the plug-in is to correct channel imbalance errors. For example, if the Right channel is 3dB quieter than the left channel, and you then run a stereo enhancer on this, the error will be greater, for example 6dB!
With an AutoBalance plug-in the error can be eliminated.
Best,
///Leif[quote author=”Leif”]
The purpose of the plug-in is to correct channel imbalance errors. For example, if the Right channel is 3dB quieter than the left channel, and you then run a stereo enhancer on this, the error will be greater, for example 6dB!
[/quote]I havn’t tried it yeat, but what happens to 60′ music like Beatles where L&R are very different some times.
/Ken
Hmmm, seems to me this could have been done easier by splitting L/R of the wideband AGC.
Even better still by allowing a optional split of L/R on all portions of processor! (By splitting the channels you reduce g/r induced intermodulation distortion for a more open sound, plus an extra dB of loudness. 😉 ).
Sorry I don’t want to poo-poo this new plug-in but I seems like there is another way to do this, that might make some of us more satisfied customers. 😀
The #1 reason for not doing it in the AGC is because the AGC is way faster than this plugin. Ideally any channel imbalance correction be done with a very slow time constant.
AGC… not so slow. 😉 If you’ve heard a processor that does it, you’ve hopefully also heard how the stereo image whips all over kingdom come.
I never heard that on any audio that was sanely produced (IE ones that weren’t trying too hard to create a "fake" one). Look at your audience, overwhelmingly autos and boom boxes in the corner of the office or kitchen, or clock radio, not a big problem there anyway. Get out and listen in the real world, not in the test lab on your Dolby 5.1 😉
It’s not uncommon for me to request that record companies fix a song that is screwed up (usually clipping). They either fix it or the song doesn’t get played. So far I’ve never had them say no to me (helps to work at a reporting station)!
Some of the same arguments could made against stereo enhancement (which I will probablynever use), or stereo for that matter, when your reciever is blending in and out of stereo.
I will say the combination of the stereo enhancement and split L/R system would not something I would suggest, unless the stereo enhancement is done prior to L/R processing.
For a fun project, listen to your favorite songs in one channel (even at a low or moderate level) that you normally only listen on the radio. You’ll hear all kinds of detail you never knew were in the song! Split L/R processing often will bring out that detail, plus lower G/R induced IM and more loudness.
Life is a tradeoff.
JesseG is back ! 😉
What do you think about stereo enhancer ? What kind of settings would you use ?
I ask you this, because your messages are very interresting !He leif,
Thank you for it works verry nice 😉 the big problems with some audio app. l > r . there are no problems no more 🙂 greats
Audiophile, if I didn’t know better I’d say you just suggested I optimize the audio for boomboxes (i.e. listeners who don’t care) rather than optimizing for proper stereo systems (i.e. listeners who do care). Interesting use of "audiophile" as a nickname. Just sayin’.
The beauty of plug-ins is that they are optional and very much opt-in. There’s just no reasonable arguing with a free plug-in. If you don’t like the idea, don’t download it 🙂.
For L/R agc, Jesse got it exactly right. The needs of an auto balancing plug-in are very different from a AGC, and the implementations are very different.
///Lef
No, I think you missed the point, Leif. You need to look at what your audience is and what he or she listens to you on.
For instance if your audience is "Becky", age 35, she has two kids and she drives a 2003 Chrysler Mini-van, how does it sound to her? Do they use a lot of cheap recievers (clock radios, $29 boom boxes at work in case it gets coffee dumped on it) , have a lot of distractions, or does over-brightness sound strident-fatiguing to her? I did this test with BBP and had some interesting results.
Now on the other hand if you’re a classical station and your audience is "Bob" Age 55, retired with a vintage McIntosh, different settings!
Audio processing to the faceless masses of "insert anything here" audio playback systems is actually about the law of averages. The more that one tries to make an audio processor’s output sound "good" on a totally crappy system, the worse it sounds on yet another totally crappy yet different system.
I’m not saying there isn’t concerns that you can have with how one should design a sound, with regard to these "lesser" playback systems. But if it ever becomes something that is "un-enjoyable" on a system that is really transparent… then DE FACTO your station WILL sound worse on average. It is an inescapable fact.
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