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I had to think about this for awhile...... What it tells me is fairly impressive, but may prove to be problematic. Theoretically, the pouch should inflate regardless of the amount (or volume) of atmospheric air that gets inside the pouch well. That stands to reason. However, what it also says is that the pouches are extremely sensitive. What concerns me is they might respond to the slightest signal that comes along. Consider that in the early days of music roll production, they used what are known as 'chain perforations' to extend the duration of a note. And, like a chain, which is comprised of individual links, a chain perforation was comprised of a series of equally sized holes that were all in a row. 'Connecting them', as it were, was done by leaving a space of paper between two adjoining holes. (As I have personally experienced this problem, I know from where I speak.) Now, in reality, this 'space' between the adjoining holes actually closes the hole in the trackerbar for a split second, and if a pouch is extremely sensitive, it will respond to that 'closing' of the trackerbar port. The result is what is known as 'chatter', or 'fluttering'. So, instead of the note just staying 'on' for the full length of the chain perforation, it turns 'on' and 'off' exceedingly fast and creates what might also be referred to as a 'buzzing' sound.
Fortunately, the technology of roll manufacturing improved in the mid-teens and chain perforations basically disappeared for about the next 75 years. Then QRS got the bright idea (said with sarcasm) of using thinner paper, to save money. Problem was, the paper was so 'weak' that longer perforations starter 'collapsing' (or folding in on themselves). To solve this problem, QRS (in a sense) 're-introduced' the chain perforation. But instead of returning to the use of round circles separated by blank spaces, they used squares separated by spaces. (Are you getting the picture?) So, now you have a 'space' that really does 'close' the hole in the trackerbar for a split second.
Again, fortunately, QRS realized the folly of their ways and started using a strong paper, which in turn allowed them to decrease the distance between the links of a chain perforation. Still, hundreds of thousands of their rolls with the wider spacing do exist.
Why am I going through this lengthily explanation? Just so you'll be aware of the fact that your system -with it's sensitive pouches- is not at fault. It's just very sensitive.... and I think that's a good thing!
John A Tuttle
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