![]() ![]() To well understanding of the concept of chromatic, you must first become acquainted with the concept of the musical scale in a more general sense. that is chromatic scale (twelve-tone scale) and scales in general Process of searching right sound is repeated ten times per second, for currently processed sample sound from a microphone.That makes it possible to tune the instrument in real time. Such situations are indicated by the corresponding red LED on the screen. They are more similar to the sound of sound reference surroundings (higher or lower) than the specific sound scale. This allows catching out of tuned sounds. Additionally, program checks slightly higher frequency and lower than the standard frequencies (kind of surroundings of sound reference). Cosine wave is the sine wave shifted by & Pi / 2 (one-fourth of the period). In order to take account of the so-called phase shift, there is also performed a comparison with the cosine wave reference frequency. The higher the score, the greater the similarity. The result sum illustrates how wave entered through a microphone is similar to the pattern. Operation of the transformation is in this case multiplying successive points of the input waveform (usually 1 / 44100s on the time axis) to the corresponding values of the sine wave with frequency of reference standard. Frequency comparison algorithm is based on calculation of the Fourier transform. Checks each of the frequencies and remembers this, which are most congruent to the frequency received by the microphone. The tuner works by comparing the frequency of the sound from the microphone of Your computer to the sounds of the chromatic scale (c, d, e, f, g, and h). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |