intpoll.ps

DSP6000＋AD535语音采集的单频噪声消除的C语音代码

50 28 33 44 50 25 25 25 61 35 48 25 28 50 26 44 51 50 28 44 28 50 25 28 50 28 39 25 44 50 50 50
28 28 28 50 50 25 25 25 89 67 66 55 56 50 50 56 56 66 67 25 33 44 33 44 33 39  0]xS 
475 1533 M (to the serial port control register \(SPCR\) contents.  \(The address for this register is defined in )
[28 50 25 28 50 44 25 39 44 33 28 44 28 25 50 50 33 28 25 44 50 50 28 33 50 28 25 34 44 49 28 39
28 45 33 25 33 56 56 67 67 33 25 44 50 50 28 44 50 28 39 25 25 25 33 61 50 44 25 44 50 50 34 44
39 39 25 33 50 33 25 28 50 28 39 25 34 45 50 28 39 28 44 33 25 28 39 25 50 44 33 28 50 44 50 25
28 50  0]xS 
475 1648 M (the C6x)[28 50 44 25 67 50  0]xS 
790 1648 M (11)[50  0]xS 
890 1648 M (dsk.h file.\)  )[50 39 50 25 50 25 33 28 28 44 25 33 25  0]xS 
1370 1648 M ( )S 
475 1763 M ( )S 
F3S64 Ji 
475 1878 M (## Answer the following:)[50 51 25 61 50 39 67 44 39 25 28 50 44 25 28 50 28 28 49 67 28 50 50  0]xS 
1483 1878 M ( )S 
475 1993 M (9)S 
525 1993 M (.  What is )[25 25 26 81 50 50 28 25 28 39  0]xS 
927 1993 M (the peak)[28 50 44 25 50 44 51  0]xS 
1263 1993 M (-)S 
1296 1993 M (to)[28  0]xS 
1374 1993 M (-)S 
1407 1993 M (peak voltage of the output of the codec according to the scope?)
[51 44 50 44 25 44 50 28 28 50 50 44 25 50 28 25 28 50 44 25 50 50 28 50 50 28 26 50 28 25 28 50
44 25 44 50 50 44 44 25 51 44 44 50 39 50 28 50 50 25 28 50 25 28 50 44 25 39 44 50 50 44  0]xS 
3937 1993 M ( )S 
475 2108 M (10)[50  0]xS 
575 2108 M (.  What is the offset?)[25 25 26 81 50 50 28 25 28 39 25 28 50 44 25 50 28 28 39 44 28  0]xS 
1391 2108 M ( )S 
475 2223 M (11)[50  0]xS 
575 2223 M (.  What is the frequency of the signal according to the scope?)
[25 25 26 81 50 50 28 25 28 39 25 28 50 44 25 28 39 44 50 50 44 51 45 44 25 50 28 25 28 50 44 25
39 28 50 50 50 28 25 50 44 44 50 39 50 28 50 50 25 28 50 25 28 50 44 25 39 44 50 50 44  0]xS 
3021 2223 M ( )S 
475 2338 M (12)[50  0]xS 
575 2338 M (.  What is the peak)[25 25 26 81 50 50 28 25 28 39 25 28 50 44 25 50 44 51  0]xS 
1313 2338 M (-)S 
1346 2338 M (to)[28  0]xS 
1424 2338 M (-)S 
1458 2338 M (peak amplitude according to the graph in CCS?  Based on this, wha)
[50 44 50 44 25 50 72 50 28 28 28 50 50 44 25 50 45 44 50 39 50 28 50 50 25 28 50 25 28 50 44 25
50 39 50 50 50 25 28 50 25 67 67 50 50 25 24 61 50 39 44 50 25 50 50 25 28 50 28 39 25 25 67 50
 0]xS 
4183 2338 M (t )[28  0]xS 
475 2453 M (is approximately the output voltage of the codec per 1000 bits sent to the DAC?)
[28 39 25 50 50 50 39 50 44 28 72 50 28 44 28 44 25 28 50 44 25 50 50 28 50 50 28 25 44 50 28 28
50 50 44 25 50 28 25 28 50 44 25 44 50 50 44 44 25 51 44 39 25 50 50 50 50 25 50 28 28 39 25 39
44 50 28 25 28 50 25 28 50 44 25 72 61 67  0]xS 
3663 2453 M ( )S 
475 2568 M (13)[50  0]xS 
575 2568 M (.  What is the frequency of the signal from the FFT?)[25 25 26 81 50 50 28 25 28 39 25 28 50 44 25 28 39 44 50 50 44 51 45 44 25 50 28 25 28 50 44 25
39 28 50 50 50 28 25 28 39 50 72 25 28 50 44 25 61 61 56  0]xS 
2653 2568 M ( )S 
475 2683 M (14.  Explain the test condition for acquiring data while polling.)
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28 50 39 25 50 44 50 50 28 39 28 50 50 25 50 50 28 50 24 67 50 28 28 44 25 50 50 28 28 28 50 50
 0]xS 
3010 2683 M ( )S 
475 2798 M ( )S 
F0S64 Ji 
475 2915 M (III.)[39 39 39  0]xS 
617 2915 M (  )[25  0]xS 
667 2915 M (ECHO)[67 67 78  0]xS 
951 2915 M ( )S 
F1S64 Ji 
475 3028 M ( )S 
475 3143 M (You will need to create a project and ad)[72 50 50 25 72 28 28 28 25 50 44 44 50 25 28 50 25 44 33 45 44 28 44 25 45 25 50 33 50 28 44 44
28 25 44 50 50 25 44  0]xS 
2067 3143 M (d the following files:)[50 25 28 51 44 25 33 50 28 28 51 72 28 50 49 25 33 28 28 44 39  0]xS 
2904 3143 M ( )S 
475 3258 M ( )S 
775 3373 M (echo.c and the support files)[44 44 50 50 25 44 26 44 50 50 25 28 50 44 25 39 50 50 50 50 33 28 25 33 28 29 44  0]xS 
1872 3373 M (.  Also, put the echo.ge)[25 25 25 72 28 39 50 25 25 50 50 28 25 28 50 44 25 44 44 50 50 26 49  0]xS 
2794 3373 M (l)S 
2822 3373 M ( file in the project folder.)[25 33 28 28 44 25 28 50 25 28 50 44 25 50 33 50 28 44 44 28 25 33 50 28 50 44 34  0]xS 
3821 3373 M ( )S 
775 3488 M ( )S 
475 3603 M (The file echo.c creates an echo of the input)[61 50 44 25 33 28 28 44 25 45 44 50 50 25 44 25 45 33 44 44 29 44 39 25 44 51 25 44 44 50 50 25
50 33 25 28 50 44 25 28 50 50 50  0]xS 
2193 3603 M ( by adding a de)[25 52 48 25 44 50 50 29 50 49 25 44 25 51  0]xS 
2804 3603 M (/)S 
2832 3603 M (amplified version of the delayed )[44 78 50 28 28 33 28 44 50 25 50 45 33 39 28 50 50 25 50 33 25 28 50 44 25 50 44 28 46 48 44 50
 0]xS 
475 3718 M (input to the current input and using that as the output.)[28 50 50 50 28 25 28 50 25 28 50 44 25 44 50 33 33 44 50 28 25 28 50 50 50 28 25 44 50 50 25 50
39 28 50 49 25 28 50 44 28 25 44 39 25 28 51 44 25 50 50 28 50 50 28  0]xS 
2616 3718 M (  The delayed input is created through )[25 25 61 50 44 25 50 44 28 46 48 44 50 25 28 50 50 50 28 25 28 39 26 44 33 44 44 29 44 50 25 28
50 33 50 51 49 50  0]xS 
475 3833 M (the use of a buffer.)[28 50 44 25 50 39 44 25 50 33 25 44 25 50 51 33 33 44 34  0]xS 
1227 3833 M (  )[25  0]xS 
1277 3833 M ( )S 
475 3948 M ( )S 
475 4063 M (GEL stands for general extension language.  It is used to make a nice little interface to vary )
[72 62 59 25 39 28 44 51 50 39 25 33 50 33 26 49 44 51 44 34 44 28 25 45 51 28 44 50 39 28 50 50
25 28 44 50 49 50 44 50 44 25 25 26 32 28 25 28 39 26 50 39 44 50 25 28 50 25 78 44 50 44 25 44
25 50 28 45 44 25 28 28 28 28 28 44 25 28 50 28 44 33 33 44 45 44 25 28 50 25 50 44 35 48  0]xS 
475 4178 M (parameters within a program.)[50 44 33 44 78 44 28 45 33 39 25 72 28 28 50 28 50 25 44 25 50 33 51 50 33 44 78  0]xS 
1652 4178 M ( )S 
475 4293 M ( )S 
F2S64 Ji 
475 4410 M (Goldwave)[77 50 28 56 73 50 50  0]xS 
903 4410 M ( )S 
F1S64 Ji 
475 4523 M ( )S 
475 4638 M (For this section, we will use a voice file called THEFORCE)[55 50 33 25 28 50 28 39 25 39 44 44 28 28 50 50 25 25 72 44 26 72 28 28 28 25 50 39 44 25 44 25
50 50 28 44 44 26 33 28 28 44 25 44 44 28 28 44 50 25 62 72 61 55 72 67 67  0]xS 
2871 4638 M (.wav.  Load this into Goldwave.)[25 72 44 50 25 25 26 60 51 44 50 25 29 50 28 39 25 28 50 28 50 25 72 50 28 50 72 44 50 44  0]xS 
4155 4638 M ( )S 
475 4753 M ( )S 
F2S64 Ji 
475 4870 M (Set)[56 44  0]xS 
608 4870 M (-)S 
641 4870 M (up)[56  0]xS 
F1S64 Ji 
753 4870 M ( )S 
475 4983 M ( )S 
475 5098 M (For this section, you need to disconnect the output from the scope and attach the speakers to )
[55 50 33 25 28 50 28 39 25 39 44 44 28 28 50 50 25 27 48 50 50 25 50 44 45 50 25 28 50 25 50 28
39 44 50 50 50 44 44 28 25 28 50 44 25 50 50 28 50 50 28 25 33 33 50 78 25 28 50 44 25 39 44 50
50 44 25 44 50 50 26 44 28 28 45 44 50 25 28 50 44 25 39 50 44 44 51 44 33 39 25 28 50  0]xS 
475 5213 M (the output.)[28 50 44 25 50 50 28 50 50 28  0]xS 
903 5213 M ( )S 
475 5328 M ( )S 
F2S64 Ji 
475 5445 M (Running the program)[72 56 56 56 27 56 50 25 33 56 44 25 56 44 50 50 44 51  0]xS 
1408 5445 M ( )S 
F1S64 Ji 
475 5558 M ( )S 
475 5673 M (Run TheForce file in Goldwave.)[67 50 50 25 61 50 44 55 50 34 44 44 25 33 28 28 44 25 28 50 25 72 50 29 50 72 44 50 44  0]xS 
1771 5673 M ( )S 
475 5788 M (Load)[60 50 44  0]xS 
679 5788 M ( and run )[26 44 50 50 25 33 50 50  0]xS 
1032 5788 M (the )[28 50 44  0]xS 
1180 5788 M (echo )[44 44 50 50  0]xS 
1393 5788 M (program.  You should hear a)[50 34 50 49 34 44 78 25 25 25 72 50 50 25 39 50 50 50 28 50 25 50 44 45 33 26  0]xS 
2538 5788 M ( voice )[25 50 50 28 44 44  0]xS 
2804 5788 M (with echo from the speakers.)[72 28 28 50 25 45 44 50 50 25 33 33 50 78 25 29 50 44 25 39 50 44 44 50 45 33 39  0]xS 
3957 5788 M ( )S 
475 5903 M ( )S 
475 6018 M (Go to File > Load Gel.  Load the echo.gel program.  Go to GEL > Echo Control > Amplitude.  )
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25 44 44 50 50 26 50 44 28 25 50 33 51 49 34 44 78 25 25 25 72 50 25 28 50 25 72 62 59 26 56 25
61 44 50 50 25 67 50 51 28 33 50 28 25 56 25 72 78 50 28 28 28 50 50 44 25 25  0]xS 
475 6133 M (Repeat for Delay.  Amplitude changes the amplitude within the program and Delay changes )
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51 49 44 39 25 28 50 44 26 44 78 50 28 28 28 50 50 44 25 72 28 28 50 28 50 25 28 50 44 25 50 33
50 50 33 44 78 25 44 51 50 25 72 44 28 46 48 25 44 51 44 51 49 44 39  0]xS 
LH
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0 0 0 1 scol 475 498 M (the buffer size within the program.  The buffer)[28 50 44 25 50 50 33 33 44 33 25 39 28 45 44 25 72 28 28 50 28 50 25 28 50 45 25 50 33 50 50 33
44 78 25 25 25 61 50 44 25 50 51 33 33 45  0]xS 
2338 498 M ( size is Delay x 1000.  Rerun the program and )[25 39 28 45 44 25 28 39 25 72 44 28 46 48 25 51 25 50 50 50 50 25 25 25 67 44 33 50 50 25 28 50
44 25 50 33 50 50 33 44 78 25 44 50 50  0]xS 
475 613 M (change the amplitude and time delay.)[44 50 44 51 49 44 25 28 50 44 26 44 78 50 28 28 28 50 50 44 25 44 51 50 25 28 28 78 44 25 50 44
28 45 48  0]xS 
1968 613 M ( )S 
475 728 M ( )S 
475 843 M (Change the echo.c program so that now the output is stored in the buffer rather than the input.  )
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44 25 50 50 33 33 44 33 26 33 44 29 50 44 33 25 28 50 44 50 25 28 50 44 25 28 50 50 50 28 25 25
 0]xS 
475 958 M (This creates a fading echo.  )[61 50 28 39 25 44 33 44 44 28 44 39 26 44 25 33 44 50 28 51 49 26 44 44 51 50 25 25  0]xS 
1594 958 M ( )S 
475 1073 M ( )S 
F3S64 Ji 
475 1188 M (## Answer the following:)[50 51 25 61 50 39 67 44 39 25 28 50 44 25 28 50 28 28 49 67 28 50 50  0]xS 
1483 1188 M ( )S 
475 1303 M (15.  )[50 50 25 25  0]xS 
651 1303 M (What amplitude)[81 50 50 28 25 50 72 50 28 28 28 50 50  0]xS 
1285 1303 M ( and buffer size do you like the best, i.e. to create the echo that you like?)
[25 50 50 50 26 50 50 28 28 44 39 25 39 28 39 44 25 50 50 25 44 50 50 25 28 28 44 44 25 28 50 44
25 50 44 39 28 25 25 28 25 44 25 25 28 50 25 44 39 44 50 28 44 25 28 51 44 25 45 44 50 50 25 28
50 50 28 25 44 50 50 25 28 28 44 44  0]xS 
4176 1303 M ( )S 
475 1418 M (16.  What amplitude and buffer size do you like the best for a fading echo?)
[50 50 25 25 26 81 50 50 28 25 50 72 50 28 28 28 50 50 44 25 50 50 50 26 50 50 28 28 44 39 25 39
28 39 44 25 50 50 25 44 50 50 25 28 28 44 44 25 28 50 44 25 50 44 39 28 25 28 50 39 25 50 25 28
50 50 28 50 50 25 44 44 50 50  0]xS 
3458 1418 M ( )S 
475 1533 M ( )S 
475 1648 M (1)S 
525 1648 M (7)S 
575 1648 M (.)S 
600 1648 M (  Did you run into any problems in this lab?)[25 25 72 28 50 25 44 50 50 25 39 50 50 25 28 50 28 50 25 50 50 44 25 50 39 50 50 28 44 72 39 25
28 50 25 28 50 28 39 25 28 50 50  0]xS 
2356 1648 M ( )S 
475 1763 M ( )S 
LH
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