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I think I knew one once, but I'm old and memory may well be mistaken.

Simplest door that would be a sound barrier would be a fire door, or as the booth seems to be double glazed panels in a frame, add a PVC double glazed door. That would match the acoustic performance of the booth. Hinging out would seem to be necessary. The killer will be that it will get hot and...

We can certainly use the inverse square law to describe what happens but realistically, the key feature is gain before feedback. The sensitivity is pretty irrelevant when it comes to radio systems as they're designed to cope with an untrained quiet voice with no power or an opera singer, capable...

I can't read the Facebook post, not being a member, but surely we're comparing apples with oranges here? Function One had some great boxes, and still do - and for the kinds of shows I do, I have no problem with a single box approach - and those Function One units could be used upside down if...

I'm convinced that few real PA speakers have flat frequency response as a design feature. It's not what PA is about. Studio monitors have frequency responses that allow accurate and delicate adjustment of EQ, balance, stereo imaging, compression and quality. PA systems don't and often...

What are you going to achieve with filtering the analogue output - that's not what digital filters do? You seem to have a basic grasp, but your analogies are a bit odd. Sound pressure is an analogue function between a source and a transducer. If a sample goes out of the range you do NOT hear a...

I'm not irritated, but the concept of quality PA and hifi simply do not go together. What I mean is that you seem to think that buy-in g Meyer or other similar products means it's better than a decent hifi system? They were very much different beasts. Hifi is chosen so that what goes in, comes...

You are very mixed up in your focus here. I have in stock a 12 box JBL VRX system, It has the sort of bass that you feel and is really in your face - for live shows. It does it's job well and earns its keep. However - it is not remotely accurate and revealing. It kicks ar5e. If you want a...

No, the captured sampled digital waveform is always positive. I'm OK with computers, but the maths element of sampling is usually actioned with an offset, so say a -.5 to +.5 voltage swing has to be converted to a 0 to 1V version to be sampled in the usual manner. This conversion is the aspect I...

I'm still very confused, I'm afraid. How is this strange -1/+1 stream created? Surely it has to go back to 0/5V to be processed? I really can't help as the filters you're talking about are something I have never looked into. I always thought the filter was to remove the harmonics of the square...

Sorry - I'm totally lost now. Are you making filters for audio circuits? Low cut is a frequent demand on audio, but low pass is not really something I've ever done - well, for practical music - I've clearly done it to remove the treble and leave the bass, but I don't think this is what you're...

What exactly are you trying to do? You mentioned a C sharp filter? You actually want a filter that will reduce or eliminate just one note, leaving C and D intact? You've got a little caught up in the clever stuff but have missed quite a bit out. An audio waveform is an AC voltage, that swings...

Sadly Chamsys also used to be a cheap way in, but all their hardware is now ‘normal’ priced. I’ve had 20+ years of good experiences with it.

No brainier. Chamsys MagicQ with a cheap dongle.

The thing to remember about flying anything is that it’s a simple job for a manufacturer to put in a top hat mount. Pennies on the price. If they don’t, there’s a reason. Here, the solution works. The question is how strong is it? We’ve all done home brew adaptions. It comes down to liability in...

I bought a replacement vrx 932 that turned out, I think, to be a chinese one. i used it, with my others for two years before I realised. It sounded identical. I only realised when instead of using it as the extra ground stacked fill pair, I brought in the wrong case and tried to hang it to...

In that scale I rather like the Turbosound TFM122 passives, but they're probably overpriced - not sure if they're easy to source in the US. A few shows came through last year with the active dB Technologies DVX - but I cannot remember the full model - they sounded pretty good.

It can't be helped, just a cross you have to bear. How much do you have to spend?

In the UK we see quite a lot of Thomann's own brand, and I always kept a 15" powered one on the van just in case, even though we were on IEMs - damn good. T-Box is the brand. How much do you want to spend?

Fred - you still provided no details? What do you wish to do - attenuation is obvious, but what? Can you hear people speaking, or are worried they can hear you, or is it that you are a budding opera singer and don't wish to annoy neighbours, or do you not like the next door neighbours home...