DM41 another beep bug ?

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EM41
Posts: 168
Joined: Mon Mar 30, 2020 12:10 am
Location: Overijssel Netherlands

DM41 another beep bug ?

Post by EM41 »

The first tone of beep is shorter than the other ones, I didn't hear this on the previous firmwares.
See picture for a comparison with the HP41CX
My beta DM41 is not at this location so I cannot compare, does anyone hear this.
I have a history with morse code so I always recognise problems in timing, maybe others don't hear.
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HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
rprosperi
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Location: New York

Re: DM41 another beep bug ?

Post by rprosperi »

No changes were made in this area for a long time, so it's likely this was simply never noticed before. Which version of f/w did you notice this on?

I can see the difference in the chart, and I don't doubt it's correct, but I sure can't hear the difference even doing them side-by-side. But since it seems to be about (1/4) sec. vs. ~1.1*(1/4 sec.) I'm not surprised it's undetectable.

I presume this is reported as a curiosity and is not a problem of any kind, is that correct?
--bob p

DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
EM41
Posts: 168
Joined: Mon Mar 30, 2020 12:10 am
Location: Overijssel Netherlands

Re: DM41 another beep bug ?

Post by EM41 »

The calc has DMCP 3.20 IFC 3.15 DM41X v2.1 so the latest.
No it is not something that needs to be solved, I was just wondering if it is only me that hears it.
I am not using beep all the time so maybe it was already there before but not just after solving the first beep bug.
Starting the HP and DM beep simultaneously doesn't work the HP beep masks the DM beep.
I will do a test with old firmware later.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
reavy
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Re: DM41 another beep bug ?

Post by reavy »

How consistent are the beeps between individual units of SM or HP models? It seems like a piezo buzzer wouldn’t be manufactured in such a way as to lend close consistency between individual units, anyway. Temperature and other factors might come into play as well.
bernouilli
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Location: France

Re: DM41 another beep bug ?

Post by bernouilli »

I can't hear the difference. When you write "the first beep", the first since when or after what?
The first after you turn it on?
DM15L - DM42 - DM41x
EM41
Posts: 168
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Re: DM41 another beep bug ?

Post by EM41 »

bernouilli wrote:
Thu Mar 25, 2021 10:47 am
I can't hear the difference. When you write "the first beep", the first since when or after what?
The first after you turn it on?
Sorry for not being precise its the first of the four tones of the beep that is shorter.
I am an ex radio telegraphist and radio amateur and I can hear these irregularities.
Take a HP41, if you have one, and play the beep, after that play it on the DM 41 repeat a few times and you recognise the difference.
If you cant hear it its either not there or you failed you audition as a telegraphist :lol:
You can use audacity to make a recording like I did.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
bernouilli
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Location: France

Re: DM41 another beep bug ?

Post by bernouilli »

Sorry I didn’t understand, but you were quite clear.
I can hear it too when I compare it to the beep of a HP41.
DM15L - DM42 - DM41x
EM41
Posts: 168
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Location: Overijssel Netherlands

Re: DM41 another beep bug ?

Post by EM41 »

I just checked the last 3 firmwares and it is only present in the last version DMCP_flash_3.20_DM41X-2.1.bin
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
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