Release Ver.2
テキサス大学図書館蔵
intelli-Morse iPhone Application Ver.2 Release
include Recording Analyzer The Morse code comprehensive learning tool
Manual Keyer
It is a function to input Morse code using a key (button) and learn the link between a code and a key, and it simulates a vertical key and a Paddle key.
If the length and speed of the short points and long points of the typed code are correct, it will be converted into characters.
It takes a lot of skill to display it neatly, such as not being a character string if the spacing is bad.
Set the parameters for key switching and Morse conversion from "Setting".
You can also turn off the sound and set only the LED.
For character string conversion, you can switch between English and Japanese with the "Eng" / "JPN" keys.
The code table also switches in conjunction with the switch.
The key can be switched between the vertical key and the paddle key, and the paddle key can select the long and short points on the left and right.
The paddle key can be used to enable / disable the key-in repeat function.
When this function is enabled, you can enter short points / long points continuously while pressing.
However, this feature requires considerable skill.
Try to abuse the repeat function.
If you hit it correctly, it will be converted correctly.
Veterans will also help you understand your habits.
Vertical key
Puddle（Dot/Dash）
Puddle（Dash/Dot）
iPhone7 Size
Analyzer
Auto Keyer
iPhone7 Size
A tool for converting text into Morse code, a function for listening practice.
You can edit the character string by touching the text box.
You can save 5 types of character strings (5 types of text files).
Characters can be a mixture of English and Japanese.
You can turn off the sound and set only the LED, so at the campsite
Optical Morse communication between tents ... maybe fun!
The speed setting range has been expanded for
Morse code with light from Ver2.
・ーー ・・・・ ・ー ー
・ー ・ー・ ・
ー・ーー ーーー ・・ー
ー・・ ーーー ・・ ー・ ーー・
・ーー・ ・ー・ ・ ・ーー・ ・ー ・ー・ ・・ ー・ ーー・
ー・・ ・・ ー・ ー・ ・ ・ー・
Recoder Dialog
Player Dialog
You can also change the sound pressure and adjust the speed during playback,
Initially demodulated using the iPhone's UV meter feature,
When using the UV meter function, the amplitude follows the actual sound slowly, so even if you set a threshold value
It was enough to demodulate a fairly slow Morse code.
From the beginning of development, I thought that FFT (Fast Fourier Transform) could be used, but it was a complicated operation even though it was a high-speed transform, so I was wondering how much response I could get.
However, when I tried it with a prototype, I found that I got a much more accurate response than I expected, so I implemented an analysis engine using FFT in Ver.1.3 and officially released intelli-Morse. ..
Since then, there has been a growing trend from Morse code practice apps to Morse code analysis apps.
For chord analysis, it can be pronounced correctly in Morse code format
The accuracy of analysis by the simulator is about 80 to 90%.
On the other hand, in the case of handmade, even if it does not fit the format correctly, it can be identified by the human ear, so we devised an analysis algorithm to handle this.
Not perfect, but much more accurate.
Once you have an idea, implement it, repeat the test, and reflect it in your product. (Secret algorithm ...!)
NOTE
Characters that can be converted to Morse code
1. Alphabet full-width / half-width uppercase / lowercase
2. Japanese full-width hiragana katakana voiced sound mark semi-voiced sound mark half-width (katakana)
Full-width lowercase letters in that line, lowercase letters of "tsu"
3. Symbol period "." Comma "," colon ":" question mark "?" Underscore "_"
Plus "+" hyphen "-" multiplication "x" exponentiation "^" diagonal line "/"
At sign "@" left parenthesis "(" right parenthesis ")" double quotation "" "
Apostrophe "'" correction (HH)
Four. If you enclose the Q code in curly braces [], it will be converted in continuous type.
Example [VA] ・・・－・－ [CQ] ー・ー・ーー・ー etc.
However, it is limited to the commonly used Q code.
It analyzes the sound picked up by the iPhone microphone (Morse code sound) and converts it into a character string.
The speed and sound pressure thresholds are automatically adjusted.
One day, from an amateur radio station director
Request "I wish I had a recording analysis function"
Implemented record analysis function and released as Ver2!
You can listen to it repeatedly, and if you slow down, you can use it for hearing practice.
This is a video of Ver.1.7.
This is a video of Ver.1.8.
Thankyou!!
