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Replace word using dictionary Program  to replace word using dictionary javascript Here is an example of a program in JavaScript that replaces a word in a string using a dictionary:   const dictionary = { "{NANE}": "Jhon", "{DESIGNATION}": "Software Engineer", };  const replaceWord = (sentence, dictionary) =>  {   let newSentence = sentence;  for (let key in dictionary) {       newSentence = newSentence.replace(key, dictionary[key]);  }  return newSentence;  };  const sentence = "My name is {NAME} and I am {DESIGNATION}";  console.log(replaceWord(sentence, dictionary));  // Output: "My name is John and I am SoftwareEngineer. "  In this example, the dictionary object contains key-value pairs of words to be replaced and their replacements. The replaceWord function takes a sentence and the dictionary as input, and loops through the keys in the dictionary. For each key, it replaces all occurrences...

  Change Audio Pitch FFmpeg Change audio pitch ffmpeg To change the pitch of an audio file using ffmpeg, you can use the "asetrate" filter. For example, to increase the pitch by one octave (double the frequency), you can use the following command: ffmpeg -i input.mp3 -filter:a "asetrate=2*44100" output.mp3 An octave is a musical interval that spans 12 semitones on a standard piano keyboard. Doubling the frequency of a note results in an increase in pitch by one octave. A semitone is the smallest musical interval commonly used in Western tonal music, and it is equal to the interval between two adjacent notes on a piano or other musical keyboard. It is also known as a half step or a half tone. For example, the interval between C and C# is a semitone. In Western music, there are 12 semitones in an octave, which is the interval between two notes that have the same letter name but are separated by an interval of 12 pitch classes. To decrease the pitch by one octave (half...