DTMF Dial Function In the class you were given the first part of the function named dtmf m to implement a DTMF dialer based on the frequency table defined in Figure 1 Figure 2 is the skeleton of the function presented in the class Row Column 4 1209Hz 1336Hz1477Hz1633Hz 1 697Hz 2 770Hz 3 852Hz 4 941Hz 4 Figure 1 DTMF Frequency Table function xx dtmfdial (keyNames, fs) DTMFDIAL Create signal vector of DTMF tones that will dial a Touch Tone telephone usage xx dtmfdial (keyNames, f3) keyNames character string with valid key names fs sampling frequency xx signal vector that is the concatenation of DTMF tones 10 11 dtmf keys 13 14 ff rows 697 770 852 941 15dtmf colTones ones (4,1)ff cols 16 dtmf rowTones ff rows nes (1,4) ff cols 1209, 1336, 1477, 16331 Figure 2 First part of the dtmf m (a DTMF phone dialer) Complete this function with additional lines of code so that it implements the following 1 The input to the function is a vector of characters, each one being equal to one of the key names on the telephone ( The MATLAB structure called dtmf contains the key names in the field dtmf keys which is a 4 4 array that corresponds exactly to the keyboard layout in Fig 1) DTMF Dial Function In the class you were given the first part of the function named dtmf m to implement a DTMF dialer based on the frequency table defined in Figure 1 Figure 2 is the skeleton of the function presented in the class Row Column 4 1209Hz 1336Hz1477Hz1633Hz 1 697Hz 2 770Hz 3 852Hz 4 941Hz 4 Figure 1 DTMF Frequency Table function xx dtmfdial (keyNames, fs) DTMFDIAL Create signal vector of DTMF tones that will dial a Touch Tone telephone usage xx dtmfdial (keyNames, f3) keyNames character string with valid key names fs sampling frequency xx signal vector that is the concatenation of DTMF tones 10 11 dtmf keys 13 14 ff rows 697 770 852 941 15dtmf colTones ones (4,1)ff cols 16 dtmf rowTones ff rows nes (1,4) ff cols 1209, 1336, 1477, 16331 Figure 2 First part of the dtmf m (a DTMF phone dialer) Complete this function with additional lines of code so that it implements the following 1 The input to the function is a vector of characters, each one being equal to one of the key names on the telephone ( The MATLAB structure called dtmf contains the key names in the field dtmf keys which is a 4 4 array that corresponds exactly to the keyboard layout in Fig 1)

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DTMF Dial Function In the class you were given the first part of the function named  dtmf m  to implement a DTMF dialer based on the frequency table defined in Figure 1  Figure 2 is the skeleton of the function presented in the class Row Column 4 1209Hz 1336Hz1477Hz1633Hz 1 697Hz 2 770Hz 3 852Hz 4 941Hz 4 Figure 1  DTMF Frequency Table function xx dtmfdial (keyNames, fs)  DTMFDIAL Create signal vector of DTMF tones that will dial a Touch Tone telephone   usage  xx dtmfdial (keyNames, f3) keyNames   character string with valid key names fs  sampling frequency xx  signal vector that is the concatenation of DTMF tones 10 11 dtmf keys    13 14 ff rows  697  770  852  941  15dtmf colTones ones (4,1)ff cols  16  dtmf  rowTones ff rows  nes (1,4)   ff cols  1209, 1336, 1477, 16331  Figure 2  First part of the dtmf m (a DTMF phone dialer) Complete this function with additional lines of code so that it implements the following 1  The input to the function is a vector of characters, each one being equal to one of the key names on the telephone  ( The MATLAB structure called dtmf contains the key names in the field dtmf keys which is a 4 4 array that corresponds exactly to the keyboard layout in Fig 1) DTMF Dial Function In the class you were given the first part of the function named  dtmf m  to implement a DTMF dialer based on the frequency table defined in Figure 1  Figure 2 is the skeleton of the function presented in the class Row Column 4 1209Hz 1336Hz1477Hz1633Hz 1 697Hz 2 770Hz 3 852Hz 4 941Hz 4 Figure 1  DTMF Frequency Table function xx dtmfdial (keyNames, fs)  DTMFDIAL Create signal vector of DTMF tones that will dial a Touch Tone telephone   usage  xx dtmfdial (keyNames, f3) keyNames   character string with valid key names fs  sampling frequency xx  signal vector that is the concatenation of DTMF tones 10 11 dtmf keys    13 14 ff rows  697  770  852  941  15dtmf colTones ones (4,1)ff cols  16  dtmf  rowTones ff rows  nes (1,4)   ff cols  1209, 1336, 1477, 16331  Figure 2  First part of the dtmf m (a DTMF phone dialer) Complete this function with additional lines of code so that it implements the following 1  The input to the function is a vector of characters, each one being equal to one of the key names on the telephone  ( The MATLAB structure called dtmf contains the key names in the field dtmf keys which is a 4 4 array that corresponds exactly to the keyboard layout in Fig 1)

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DTMF Dial Function In the class you were given the first part of the function named dtmf.m to implement a DTMF dialer based on the

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