![]() So make sure to aim your iPhone so the the tones show up in the spectrum display. Please note that it is easy to mis-aim an iPhone's microphone so that its noise cancelling microphone will cancel out any Morse Code tones. (QRQ mode also supports higher frequency dot-dash tones.) There is a QRQ High Speed WPM Mode which will work better for code speeds in the range of 30 to 80 WPM. ![]() You can also manually set the WPM code speed using the plus and minus symbols that appear in the waveform graph, or the slider control on an iPad. One the iPhone, tap the lock button to the right of the waveform graph to lock and unlock automatic WPM detection. The Morse code WPM (words per minute) detection speed is automatically adaptive from about 8 to 40 WPM, and can be locked to the current estimated WPM dot speed (WPM lock icon locked). On the iPhone, tap the lock button to the right of the spectrum graph to toggle the filter off and on. Tap the spectrogram to set the audio filter to the frequency of a selected frequency peak. The filter can also be left off in a wide-band mode (frequency lock icon unlocked). If the audio filter is enabled (frequency lock icon locked), it can be set for frequencies in the range of 400 to 1400 Hz. You can then use the optional narrow-band audio filter to help filter out background noise. The Morse Code Decoder includes a built-in spectrogram to help determine the audio frequency of the Morse Code tones. Decoding parameters that can be manually adjusted include the audio frequency of an optional narrow-band DSP filter, the WPM dot/dash speed used for detecting characters, the threshold level of background noise, and whether Farnsworth timing is to be used for detecting spaces between individual characters. It includes both automatic decoding of longer clean signals and manual controls to allow the decoding of more difficult signals in QRM. The HotPaw Morse Code Decoder takes audio input from the microphone or headset input on your iPhone or iPad, decodes Morse Code, and displays the results in text form. Just contact us and we'll see about adding your word list to our list of packages.Translate Morse Code or CW audio to text. Have an idea or suggestion? We are always happy to receive feedback, ideas, word lists that you think would make the game better and help you learn. You can also create your own package and levels, and share these with others. Packages and levels will be improving all the time and we will be adding new packages based on user feedback to challenge you and help you learn morse code / cw faster. * Free to try with the Free Package and Levels. Sound only levels make you listen to the dit and dash sequence and then choose the correct letter from a list before it hits the bottom. Levels help you get the timing right, and each level progressively gets faster to work on your speed and to challenge you. Sound hints and visual clues help you with beginner levels, showing you the sequence for the letter that is up and playing the sound for that letter to help you recognize it both visually and with audio. Tap fast for a dit, and hold a little longer for a dash. You tap the dit and dash sequence on the tap pad at the bottom of the screen to create the correct letter. Great for learning morse code for amateur radio, ham radio, military, or just tapping out a message to your friends. Each level challenges you to learn the correct sequence of dits and dashes to zap the letter before it hits the bottom of the screen. It's a fun and unique CW trainer of International Morse Code. MorseZapp is a great way to learn morse code. Make sure you try out public packages and personal levels. ![]() Contact us if you have any problems and we'll take care of them quickly.
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