CN104013480A - Artificial cochlea acoustic nerve conductive electrode array capable of sensing music melodies - Google Patents

Artificial cochlea acoustic nerve conductive electrode array capable of sensing music melodies Download PDF

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CN104013480A
CN104013480A CN201410264627.8A CN201410264627A CN104013480A CN 104013480 A CN104013480 A CN 104013480A CN 201410264627 A CN201410264627 A CN 201410264627A CN 104013480 A CN104013480 A CN 104013480A
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note
pitch
electrode
spent
frequency band
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CN104013480B (en
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田岚
宋清华
黄静如
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Shandong University
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Shandong University
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Abstract

The invention discloses an artificial cochlea acoustic nerve conductive electrode array capable of sensing music melodies. According to the base frequency of music notes, at the frequency sensing position of a human ear basilar membrane, the area between the top of a cochlea and the bottom of the cochlea is divided into frequency areas with specific stimulation signals according to a frequency band corresponding to a note with a half pitch; a specific electrode for conducting signals of the frequency band is arranged in each audio frequency area, namely the electrode is arranged at the frequency band corresponding to a possible base frequency and harmonic frequency of the music notes. The number of the electrodes is 80, and the electrodes correspond to the music audio frequency range of 60-6000 Hz. The artificial cochlea electrodes are distributed according to the scheme, harmonic features of music notes of various musical instruments within the range of 60-6000 Hz can be accurately transmitted in a relative complete mode, and subharmonic elements of each note can be accurately expressed; meanwhile, according to the electrode distribution scheme, the electrodes are distributed more densely than existing electrodes capable of sensing voice information, and voice feature information can still be transmitted accurately.

Description

Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm
Technical field
The present invention relates to a kind of artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm.
Background technology
As everyone knows, the melody of music is the length of the note (the namely fundamental frequency of sound, claims again pitch) by music and just changes and represent.But people's in ear ear portions (being cochlea) is analyzer or the sensor of sound spectrum information, from cupula cochleae to snail at the bottom of with the topological corresponding relation of sound frequency, as shown in Figure 1.Just according to this theory listen perception corresponding relation, artificial cochlea device has solved the repair function of listening that human language sound rebuilds.Due to spectrum structure and the characteristic distributions of speech, artificial cochlea's product of main flow mostly is 8 to 22 and leads metal electrode at present.Table 1 provides 22 passage artificial cochleas' distribution of electrodes situation, i.e. roughly corresponding each mid-band frequency and bandwidth of 22 electrodes of corresponding people's ear cochlea at the bottom of from cupula cochleae to snail.Press the non-linear relation of auditory perceptual frequency, cupula cochleae part induction low-frequency component conventionally, distribution of electrodes is closeer, snail bottom point induction of high frequency composition, distribution of electrodes is relatively sparse.
Table 1 22 passage artificial cochlea electrode array layout respective frequencies tables
Passage Mid frequency (Hz) Bandwidth range (Hz)
1 250 120
2 375 130
3 500 120
4 625 130
5 750 120
6 875 130
7 940 120
8 1125 130
9 1250 120
10 1435 250
11 1685 250
12 1935 250
13 2185 250
14 2500 380
15 2875 370
16 3310 500
17 3810 500
18 4375 630
19 5000 620
20 5685 750
21 6500 880
22 7440 1000
Because communication is primary demand and the object that the mankind listen perception, solving the perception of voice and understanding is artificial cochlea's top priority, and this problem has been the problem that artificial cochlea better solves at present.But, while carrying out perception music information with this device, also there is more problem.A lot of scholars have carried out the evaluation studies of perception of sound effect to existing artificial cochlea, assessment result shows, to severe sensorineural deafness patient before language, it is deaf congenital deafness patient before normal communication skills is grasped, after artificial cochlea implants, speech exchange is substantially no problem, but is difficult to accurately set up the cognition to music.Analyzing its reason can find, music signal and voice signal all have larger difference in spectrum structure distribution and signal time structure distribution, the finer and closely woven complexity of music signal, existing acoustic nerve conducting electrode array layout should be the bottleneck of the music information of accurately transmission and the fine and closely woven complexity of perception.
For voice signal, its frequency coverage relative narrower, approximately 60-5000Hz, its fundamental frequency (being pitch) excursion is approximately 60-400Hz, and sound spectrum structure generally only has 3 to 5 frequency spectrum formants, formant distribution characteristics is characterizing the pronunciation content of word, take feature as the leading factor, voice height (being fundamental frequency) and the harmonic components thereof of speaker also have in spectrum structure distribution, but formant feature relatively, a little less than performance.Broadband language spectrum as shown in Fig. 2 (a), dark wide whippletree is resonance peak structure, Fig. 2 (c) is arrowband language spectrum, dark whippletree band is still the resonance peak structure of voice signal, two collection of illustrative plates structures all represent with long whippletree, illustrate that the sound spectrum " position encoded " of voice signal is mainly set to feature with resonance peak.Therefore, excite acoustic nerve granting by less electrod-array, can transmit more exactly or express the frequency estimation information of voice signal.
For music, wherein most important melodic information can simply be interpreted as pattern arrangement and the combination that note height changes and note length changes.Note, as the basic composition unit of music expression, topmost feature is exactly pitch, and its corresponding physical parameter is exactly " fundamental frequency " in sound.The height excursion of musical tones is wider, generally arrives several thousand Hz at tens Hz.The sound spectrum feature of music: frequency coverage region is wide more a lot of than voice, and spectrum energy overall distribution is more smooth, without obvious resonance peak structure, as Fig. 2 (b), but the equally spaced harmonic structure in respective frequencies is very abundant, as Fig. 2 (d).These harmonic structures of uniformly-spaced arranging are principal character performances of music signal pitch (as Fig. 3), tone color (being musical instrument kind) (as Fig. 4), and different pitches and tone color, the frequency difference of corresponding Resonance Wave Composition is very fine and closely woven.If allow these differences of cochlear implant energy perception or feature, need to carry out more dense layout to the conducting electrode array that triggers acoustic nerve granting, to realize principal character and the information that can accurately transmit voiceprint feature and also can more accurately transmit music sound spectrum.
Summary of the invention
The defect existing in order to solve existing artificial cochlea electrode placement position, the invention discloses a kind of artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm.
The technical solution used in the present invention is as follows:
A kind of artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, on basilar membrane, according to the characteristic frequency corresponding relation of musical tones, cupula cochleae is separated into the music response region of response particular note stimulus signal to corresponding phonosensitive Whole frequency band at the bottom of snail; In each music response region, place one for conducting or the counter electrode of this band signal of perception, each electrode is placed in the character pair frequency band at musical tones place.
If described electrode taking half pitch as interval, corresponding 60-6000Hz phonosensitive scope, need to arrange that number of poles be 80; 80 electrodes are divided into 8 groups according to the corresponding relation of scale, pitch, and first group comprises an electrode, and to spend frequency band corresponding with B scale, pitch 1; Second to seven group comprises respectively 12 electrodes, and each electrode is corresponding with the frequency band of the corresponding C note of pitch 2-7 degree, C#Db note, D note, D#/Eb note, E note, F note, F#/Eb note, G note, G#/Ab note, A note, A#/Bb note, B note; The 8th group comprises 7 electrodes, and it is corresponding to the frequency band of F#/Eb scale that each electrode and pitch 8 are spent corresponding C scale.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the electrode of first group is corresponding with the frequency band 59.9--63.6HZ that B note, pitch 1 are spent.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the electrode of first group is corresponding with the mid frequency 61.7HZ that B note, pitch 1 are spent.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, second group:
First electrode is corresponding with the frequency band 63.6--67.4HZ that C note, pitch 2 are spent;
Frequency band 67.4-71.2HZ that second electrode spent with C#Db note, pitch 2 is corresponding;
Frequency band 71.2 – 75.5 that the 3rd electrode spent with D note, pitch 2 are corresponding;
Frequency band 75.6-80.0HZ that the 4th electrode spent with D#/Eb note, pitch 2 is corresponding;
Frequency band 80.0-84.8HZ that the 5th electrode spent with E note, pitch 2 is corresponding;
Frequency band 84.8-89.8HZ that the 6th electrode spent with F note, pitch 2 is corresponding;
Frequency band 89.8-95.1HZ that the 7th electrode spent with F#/Eb note, pitch 2 is corresponding;
Frequency band 95.1-100.9HZ that the 8th electrode spent with G note, pitch 2 is corresponding;
Frequency band 100.9-106.8HZ that the 9th electrode spent with G#/Ab note, pitch 2 is corresponding;
Frequency band 106.8-113.2HZ that the tenth electrode spent with A note, pitch 2 is corresponding;
Frequency band 113.2-119.9HZ that the 11 electrode spent with A#/Bb note, pitch 2 is corresponding;
Frequency band 119.9-127.1HZ that the 12 electrode spent with B note, pitch 2 is corresponding.
Described artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, second group
First electrode is corresponding with the mid frequency 65.4HZ that C note, pitch 2 are spent;
The mid frequency 69.3HZ that second electrode spent with C#Db note, pitch 2 is corresponding;
The mid frequency 73.4 that the 3rd electrode spent with D note, pitch 2 is corresponding;
The mid frequency 77.8HZ that the 4th electrode spent with D#/Eb note, pitch 2 is corresponding;
The mid frequency 82.4HZ that the 5th electrode spent with E note, pitch 2 is corresponding;
The mid frequency 87.3HZ that the 6th electrode spent with F note, pitch 2 is corresponding;
The mid frequency 92.4HZ that the 7th electrode spent with F#/Eb note, pitch 2 is corresponding;
The mid frequency 98.0HZ that the 8th electrode spent with G note, pitch 2 is corresponding;
The mid frequency 103.8HZ that the 9th electrode spent with G#/Ab note, pitch 2 is corresponding;
The mid frequency 110.0HZ that the tenth electrode spent with A note, pitch 2 is corresponding;
The mid frequency 116.5HZ that the 11 electrode spent with A#/Bb note, pitch 2 is corresponding;
The mid frequency 123.5HZ that the 12 electrode spent with B note, pitch 2 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 3rd group:
First electrode is corresponding with frequency band 127.1-134.5HZ that C note, pitch 3 are spent;
Frequency band 134.5-142.6HZ that second electrode spent with C#Db note, pitch 3 is corresponding;
Frequency band 142.6-151.0HZ that the 3rd electrode spent with D note, pitch 3 is corresponding;
Frequency band 151.0-160.1HZ that the 4th electrode spent with D#/Eb note, pitch 3 is corresponding;
Frequency band 160.1-169.5HZ that the 5th electrode spent with E note, pitch 3 is corresponding;
Frequency band 169.5-179.7HZ that the 6th electrode spent with F note, pitch 3 is corresponding;
Frequency band 179.7-190.3HZ that the 7th electrode spent with F#/Eb note, pitch 3 is corresponding;
Frequency band 190.3-201.7HZ that the 8th electrode spent with G note, pitch 3 is corresponding;
Frequency band 201.7-213.6HZ that the 9th electrode spent with G#/Ab note, pitch 3 is corresponding;
Frequency band 213.6-226.4HZ that the tenth electrode spent with A note, pitch 3 is corresponding;
Frequency band 226.4-239.8HZ that the 11 electrode spent with A#/Bb note, pitch 3 is corresponding;
Frequency band 239.8-254.1HZ that the 12 electrode spent with B note, pitch 3 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 3rd group:
First electrode is corresponding with the mid frequency 130.8HZ that C note, pitch 3 are spent;
The mid frequency 138.6HZ that second electrode spent with C#Db note, pitch 3 is corresponding;
The mid frequency 146.8HZ that the 3rd electrode spent with D note, pitch 3 is corresponding;
The mid frequency 155.6HZ that the 4th electrode spent with D#/Eb note, pitch 3 is corresponding;
The mid frequency 164.8HZ that the 5th electrode spent with E note, pitch 3 is corresponding;
The mid frequency 174.6HZ that the 6th electrode spent with F note, pitch 3 is corresponding;
The mid frequency 185.0HZ that the 7th electrode spent with F#/Eb note, pitch 3 is corresponding;
The mid frequency 196.0HZ that the 8th electrode spent with G note, pitch 3 is corresponding;
The mid frequency 207.7HZ that the 9th electrode spent with G#/Ab note, pitch 3 is corresponding;
The mid frequency 220.0HZ that the tenth electrode spent with A note, pitch 3 is corresponding;
The mid frequency 233.1HZ that the 11 electrode spent with A#/Bb note, pitch 3 is corresponding;
The mid frequency 246.9HZ that the 12 electrode spent with B note, pitch 3 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 4th group:
First electrode is corresponding with frequency band 254.1-269.1HZ that C note, pitch 4 are spent;
Frequency band 269.1-285.2HZ that second electrode spent with C#Db note, pitch 4 is corresponding;
Frequency band 285.2-302.1HZ that the 3rd electrode spent with D note, pitch 4 is corresponding;
Frequency band 302.1-320.2HZ that the 4th electrode spent with D#/Eb note, pitch 4 is corresponding;
Frequency band 320.2-339.1HZ that the 5th electrode spent with E note, pitch 4 is corresponding;
Frequency band 339.1-359.4HZ that the 6th electrode spent with F note, pitch 4 is corresponding;
Frequency band 359.4-380.6HZ that the 7th electrode spent with F#/Eb note, pitch 4 is corresponding;
Frequency band 380.6-403.4HZ that the 8th electrode spent with G note, pitch 4 is corresponding;
Frequency band 403.4-427.2HZ that the 9th electrode spent with G#/Ab note, pitch 4 is corresponding;
Frequency band 427.2-452.8HZ that the tenth electrode spent with A note, pitch 4 is corresponding;
Frequency band 452.8-479.5HZ that the 11 electrode spent with A#/Bb note, pitch 4 is corresponding;
Frequency band 479.5-508.2HZ that the 12 electrode spent with B note, pitch 4 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 4th group:
First electrode is corresponding with the mid frequency 261.6HZ that C note, pitch 4 are spent;
The mid frequency 277.2HZ that second electrode spent with C#Db note, pitch 4 is corresponding;
The mid frequency 293.7HZ that the 3rd electrode spent with D note, pitch 4 is corresponding;
The mid frequency 311.1HZ that the 4th electrode spent with D#/Eb note, pitch 4 is corresponding;
The mid frequency 329.6HZ that the 5th electrode spent with E note, pitch 4 is corresponding;
The mid frequency 349.2HZ that the 6th electrode spent with F note, pitch 4 is corresponding;
The mid frequency 370.0HZ that the 7th electrode spent with F#/Eb note, pitch 4 is corresponding;
The mid frequency 392.0HZ that the 8th electrode spent with G note, pitch 4 is corresponding;
The mid frequency 415.3HZ that the 9th electrode spent with G#/Ab note, pitch 4 is corresponding;
The mid frequency 440.0HZ that the tenth electrode spent with A note, pitch 4 is corresponding;
The mid frequency 466.2HZ that the 11 electrode spent with A#/Bb note, pitch 4 is corresponding;
The mid frequency 493.9HZ that the 12 electrode spent with B note, pitch 4 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 5th group:
First electrode is corresponding with frequency band 508.2-538.3HZ that C note, pitch 5 are spent;
Frequency band 538.3-570.5HZ that second electrode spent with C#Db note, pitch 5 is corresponding;
Frequency band 570.5-604.1HZ that the 3rd electrode spent with D note, pitch 5 is corresponding;
Frequency band 604.1-640.5HZ that the 4th electrode spent with D#/Eb note, pitch 5 is corresponding;
Frequency band 640.5-678.1HZ that the 5th electrode spent with E note, pitch 5 is corresponding;
Frequency band 678.1-718.9HZ that the 6th electrode spent with F note, pitch 5 is corresponding;
The frequency band 718.9---761.1HZ that the 7th electrode spent with F#/Eb note, pitch 5 is corresponding;
The frequency band 761.1---806.9HZ that the 8th electrode spent with G note, pitch 5 is corresponding;
The frequency band 806.9---854.3HZ that the 9th electrode spent with G#/Ab note, pitch 5 is corresponding;
Frequency band 854.3-905.7HZ that the tenth electrode spent with A note, pitch 5 is corresponding;
Frequency band 905.7-958.9HZ that the 11 electrode spent with A#/Bb note, pitch 5 is corresponding;
Frequency band 958.9-1016.7HZ that the 12 electrode spent with B note, pitch 5 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 5th group:
First electrode is corresponding with the mid frequency 523.3HZ that C note, pitch 5 are spent;
The mid frequency 554.4HZ that second electrode spent with C#Db note, pitch 5 is corresponding;
The mid frequency 587.3HZ that the 3rd electrode spent with D note, pitch 5 is corresponding;
The mid frequency 622.3HZ that the 4th electrode spent with D#/Eb note, pitch 5 is corresponding;
The mid frequency 659.3HZ that the 5th electrode spent with E note, pitch 5 is corresponding;
The mid frequency 698.5HZ that the 6th electrode spent with F note, pitch 5 is corresponding;
The mid frequency 740.0HZ that the 7th electrode spent with F#/Eb note, pitch 5 is corresponding;
The mid frequency 784.0HZ that the 8th electrode spent with G note, pitch 5 is corresponding;
The mid frequency 830.6HZ that the 9th electrode spent with G#/Ab note, pitch 5 is corresponding;
The mid frequency 880.0HZ that the tenth electrode spent with A note, pitch 5 is corresponding;
The mid frequency 932.3HZ that the 11 electrode spent with A#/Bb note, pitch 5 is corresponding;
The mid frequency 987.8HZ that the 12 electrode spent with B note, pitch 5 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 6th group:
First electrode is corresponding with frequency band 1016.7-1076.3HZ that C note, pitch 6 are spent;
Frequency band 1076.3-1141.1HZ that second electrode spent with C#Db note, pitch 6 is corresponding;
Frequency band 1141.1-1208.3HZ that the 3rd electrode spent with D note, pitch 6 is corresponding;
Frequency band 1208.3-1280.7HZ that the 4th electrode spent with D#/Eb note, pitch 6 is corresponding;
Frequency band 1280.7-1356.3HZ that the 5th electrode spent with E note, pitch 6 is corresponding;
Frequency band 1356.3-1437.5HZ that the 6th electrode spent with F note, pitch 6 is corresponding;
Frequency band 1437.5-1522.5HZ that the 7th electrode spent with F#/Eb note, pitch 6 is corresponding;
Frequency band 1522.5-1613.5HZ that the 8th electrode spent with G note, pitch 6 is corresponding;
Frequency band 1613.5-1708.9HZ that the 9th electrode spent with G#/Ab note, pitch 6 is corresponding;
Frequency band 1708.9-1811.1HZ that the tenth electrode spent with A note, pitch 6 is corresponding;
Frequency band 1811.1-1918.3HZ that the 11 electrode spent with A#/Bb note, pitch 6 is corresponding;
Frequency band 1918.3-2032.7HZ that the 12 electrode spent with B note, pitch 6 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 6th group:
First electrode is corresponding with the frequency band 1046.5HZ that C note, pitch 6 are spent;
The frequency band 1108.7HZ that second electrode spent with C#Db note, pitch 6 is corresponding;
The frequency band 1174.7HZ that the 3rd electrode spent with D note, pitch 6 is corresponding;
The frequency band 1244.5HZ that the 4th electrode spent with D#/Eb note, pitch 6 is corresponding; The frequency band 1318.5HZ that the 5th electrode spent with E note, pitch 6 is corresponding;
The frequency band 1396.9HZ that the 6th electrode spent with F note, pitch 6 is corresponding;
The frequency band 1480.0HZ that the 7th electrode spent with F#/Eb note, pitch 6 is corresponding;
The frequency band 1568.0HZ that the 8th electrode spent with G note, pitch 6 is corresponding;
The frequency band 1661.2HZ that the 9th electrode spent with G#/Ab note, pitch 6 is corresponding;
The frequency band 1760.0HZ that the tenth electrode spent with A note, pitch 6 is corresponding;
The frequency band 1864.7HZ that the 11 electrode spent with A#/Bb note, pitch 6 is corresponding;
The frequency band 1975.5HZ that the 12 electrode spent with B note, pitch 6 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 7th group:
First electrode is corresponding with frequency band 2032.7-2153.3HZ that C note, pitch 7 are spent;
Frequency band 2153.3-2281.7HZ that second electrode spent with C#Db note, pitch 7 is corresponding;
Frequency band 2281.7-2416.9HZ that the 3rd electrode spent with D note, pitch 7 is corresponding;
The frequency band 2416.9---2561.1HZ that the 4th electrode spent with D#/Eb note, pitch 7 is corresponding;
Frequency band 2561.1-2712.9HZ that the 5th electrode spent with E note, pitch 7 is corresponding;
Frequency band 2712.9-2874.7HZ that the 6th electrode spent with F note, pitch 7 is corresponding;
Frequency band 2874.7-3045.3HZ that the 7th electrode spent with F#/Eb note, pitch 7 is corresponding;
Frequency band 3045.3-3226.7HZ that the 8th electrode spent with G note, pitch 7 is corresponding;
Frequency band 3226.7-3418.1HZ that the 9th electrode spent with G#/Ab note, pitch 7 is corresponding;
Frequency band 3418.1-3621.9HZ that the tenth electrode spent with A note, pitch 7 is corresponding;
Frequency band 3621.9-3836.7HZ that the 11 electrode spent with A#/Bb note, pitch 7 is corresponding;
Frequency band 3836.7-4065.5HZ that the 12 electrode spent with B note, pitch 7 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 7th group:
First electrode is corresponding with the mid frequency 2093.0HZ that C note, pitch 7 are spent;
The mid frequency 2217.5HZ that second electrode spent with C#Db note, pitch 7 is corresponding;
The mid frequency 2349.3HZ that the 3rd electrode spent with D note, pitch 7 is corresponding;
The mid frequency 2489.0HZ that the 4th electrode spent with D#/Eb note, pitch 7 is corresponding;
The mid frequency 2637.0HZ that the 5th electrode spent with E note, pitch 7 is corresponding;
The mid frequency 2793.8HZ that the 6th electrode spent with F note, pitch 7 is corresponding;
The mid frequency 2960.0HZ that the 7th electrode spent with F#/Eb note, pitch 7 is corresponding;
The mid frequency 3136.0HZ that the 8th electrode spent with G note, pitch 7 is corresponding;
The mid frequency 3322.4HZ that the 9th electrode spent with G#/Ab note, pitch 7 is corresponding;
The mid frequency 3520.0HZ that the tenth electrode spent with A note, pitch 7 is corresponding;
The mid frequency 3729.3HZ that the 11 electrode spent with A#/Bb note, pitch 7 is corresponding;
The mid frequency 3951.1HZ that the 12 electrode spent with B note, pitch 7 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 8th group:
First electrode is corresponding with frequency band 4065.5-4306.5HZ that C note, pitch 8 are spent;
Frequency band 4306.5-4563.3HZ that second electrode spent with C#Db note, pitch 8 is corresponding;
Frequency band 4563.3-4833.9HZ that the 3rd electrode spent with D note, pitch 8 is corresponding;
Frequency band 4833.9-5122.1HZ that the 4th electrode spent with D#/Eb note, pitch 8 is corresponding;
Frequency band 5122.1-5425.9HZ that the 5th electrode spent with E note, pitch 8 is corresponding;
Frequency band 5425.9-5749.5HZ that the 6th electrode spent with F note, pitch 8 is corresponding;
Frequency band 5749.5-6090.3HZ that the 7th electrode spent with F#/Eb note, pitch 8 is corresponding.
Artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, the 8th group:
First electrode is corresponding with the mid frequency 4186.0HZ that C note, pitch 8 are spent;
The mid frequency 4434.9HZ that second electrode spent with C#Db note, pitch 8 is corresponding;
The mid frequency 4698.6HZ that the 3rd electrode spent with D note, pitch 8 is corresponding;
The mid frequency 4978.0HZ that the 4th electrode spent with D#/Eb note, pitch 8 is corresponding;
The mid frequency 5274.0HZ that the 5th electrode spent with E note, pitch 8 is corresponding;
The mid frequency 5587.7HZ that the 6th electrode spent with F note, pitch 8 is corresponding;
The mid frequency 5919.9HZ that the 7th electrode spent with F#/Eb note, pitch 8 is corresponding.
If the musical tones that can hear is to frequency low side, the high-end 30Hz-8000Hz that extends to respectively, by this rule reckoning, electrode number will increase to 97, and each passband distributes by that analogy.
Beneficial effect of the present invention is as follows:
If artificial cochlea electrode is carried out to layout according to such scheme, can be than more completely the harmonic characteristic of note in 60～6000Hz accurately being transmitted, and the each harmonic composition of each note also can be expressed preferably.Taking Fig. 2 (d) as example, all harmonic waves (being all dark whippletree frequency contents in narrow band spectrum) in this figure can be delivered on the acoustic nerve of internal ear by such electrod-array correspondence; Fig. 3 (a)-Fig. 3 (d) is sound spectrum (rightmost side legend) distribution situation of same musical instrument under different pitches interval, and Fig. 4 (1)-Fig. 4 (8) is the distribution situation of the sound spectrum of the same note C3 of different cultivars instrument playing; By that analogy, the musical sound of multiple instrument playing, the distribution of its sound spectrum should be combination or the stack of above various situations, adopt the electrode lay-out of this scheme all can transmit exactly or characterize the Superposition Characteristics information in various sound spectrums distributions, thereby make the Music perception effect of cochlear implant have very large improvement.
Brief description of the drawings
Fig. 1 cochlea position topological diagram corresponding to frequency;
Fig. 2 (a) voice " yi1 " broadband language spectrum;
Fig. 2 (b) piano C4 sound broadband language spectrum;
Fig. 2 (c) voice " yi1 " arrowband language spectrum;
Fig. 2 (d) piano C4 sound arrowband language spectrum.
Fig. 3 (a) differs the broadband sound spectrograph of continuous five notes of 1 semitone for accordion;
Fig. 3 (b) differs the arrowband sound spectrograph of continuous five notes of 1 semitone for accordion;
Fig. 3 (c) differs the broadband sound spectrograph of continuous five notes of 5 semitones for accordion
Fig. 3 (d) differs the arrowband sound spectrograph of continuous five notes of 5 semitones for accordion;
The oscillogram of Fig. 4 (1) clarinet musical notes C3;
The arrowband sound spectrograph of Fig. 4 (2) clarinet musical notes C3;
The oscillogram of Fig. 4 (3) piano performance note C3;
The arrowband sound spectrograph of Fig. 4 (4) piano performance note C3;
The oscillogram of Fig. 4 (5) violin note C3;
The arrowband sound spectrograph of Fig. 4 (6) violin note C3;
The oscillogram of Fig. 4 (7) carillon musical notes C3;
The arrowband sound spectrograph of Fig. 4 (8) carillon musical notes C3.
Detailed description of the invention
On people's basilar membrane, different positions responds corresponding different sound frequency signals as Fig. 1, is the position frequency topological diagram of cochlea, and this is the Important Theoretic Foundation of artificial cochlea's frequency (or position) coding.
From music knowledge, the pitch of music has seven scales of C D E F G A B, i.e. " 1,2,3,4,5,6,7 " in music numerical notation, are an octave, and all music pitches can be divided into ten octaves.It is a semitone that the minimum of pitch is differentiated pitch poor, if taking semitone as unit, all the fundamental frequency synopsis of note is as shown in table 2.
Table 2 music " note-fundamental frequency " synopsis (with semitone interval, unit: Hz)
If complete and accurate is expressed music rhythm information, make cochlear implant perception music rhythm, will make in theory frequency information or the harmonic information of 120 notes in table in artificial cochlea's position encoded accurate transfer, need on people's ear basement membrane respective frequencies position, arrange 120 electrodes by " frequency-position " topological relation, and the structure of maximum 22 electrodes of current artificial cochlea cannot realize.Therefore the present invention proposes a kind of artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm, on basilar membrane, according to the characteristic frequency corresponding relation of musical tones, cupula cochleae is separated into the music response region of response particular note stimulus signal to corresponding phonosensitive Whole frequency band at the bottom of snail; In each music response region, place one for conducting or the counter electrode of this band signal of perception, each electrode is placed in the character pair frequency band at musical tones place.
If consider people's ear normal perceived frequency scope, and note the most often adopts scope, and only to pitch, the note in 60～6000Hz is arranged electrode, and number of poles is 80; 80 electrodes are divided into 8 groups according to the corresponding relation of scale, pitch, and first group comprises an electrode, and to spend frequency band corresponding with B scale, pitch 1; Second to seven group comprises respectively 12 electrodes, and each electrode is corresponding with the frequency band of the corresponding C note of pitch 2-7 degree, C#Db note, D note, D#/Eb note, E note, F note, F#/Eb note, G note, G#/Ab note, A note, A#/Bb note, B note; The 8th group comprises 7 electrodes, and it is corresponding to the frequency band of F#/Eb scale that each electrode and pitch 8 are spent corresponding C scale; Specifically as shown in table 2; This electrode lay-out both can meet the needs that original voice messaging transmits, also can accurately transmit the information of music rhythm, each band connection frequency that concrete each electrode pair is answered distributes as shown in table 3: certainly, realize the accurate transmission of all acoustic informations, except the transformation of the electrod-array of the auditory perceptual correspondence position coding that proposes here, in the time encoding of signal conduction, also should there is supporting coding strategy, not launch in detail at this;
The corresponding each band connection frequency distribution of artificial cochlea electrode array (unit: Hz) that table 3 can be listened to the music
(note: be as the criterion with each mid frequency, slightly error of each passband span)
If the musical tones that can hear is to frequency low side, the high-end 30Hz-8000Hz that extends to respectively, by this rule reckoning, electrode number will increase to 97, and each passband distributes by that analogy.
If artificial cochlea electrode is carried out to layout according to such scheme, can be than more completely the harmonic characteristic of note in 60～6000Hz accurately being transmitted, and the each harmonic composition of each note also can accurately be expressed.Taking Fig. 2 (d) as example, all harmonic waves (i.e. all dark whippletree frequency contents) in this figure can be delivered on the acoustic nerve of internal ear by such electrod-array correspondence, can make the Music perception effect of cochlear implant have very large improvement.
Moreover, this more intensive configuration of electrodes can not have any adverse influence to the perception of voice signal, because the required number of electrodes of the perception of voice is less, in the time of perceptual speech, only need to activate a small amount of counter electrode real work in this array layout.

Claims (18)

  1. One kind can perception music rhythm artificial cochlea's acoustic nerve conducting electrode array, it is characterized in that, on basilar membrane, according to the characteristic frequency corresponding relation of musical tones, cupula cochleae is separated into the music response region of response particular note stimulus signal to corresponding phonosensitive Whole frequency band at the bottom of snail; In each music response region, place one for conducting or the counter electrode of this band signal of perception, each electrode is placed in the character pair frequency band at musical tones place.
  2. 2. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 1, is characterized in that, if described electrode taking half pitch as interval, corresponding 60-6000Hz phonosensitive scope, need to arrange that number of poles be 80; 80 electrodes are divided into 8 groups according to the corresponding relation of scale, pitch, and first group comprises an electrode, and to spend frequency band corresponding with B scale, pitch 1; Second to seven group comprises respectively 12 electrodes, and each electrode is corresponding with the frequency band of the corresponding C note of pitch 2-7 degree, C#Db note, D note, D#/Eb note, E note, F note, F#/Eb note, G note, G#/Ab note, A note, A#/Bb note, B note; The 8th group comprises 7 electrodes, and it is corresponding to the frequency band of F#/Eb scale that each electrode and pitch 8 are spent corresponding C scale.
  3. 3. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 2, is characterized in that, the electrode of first group is corresponding with the frequency band 59.9--63.6HZ that B note, pitch 1 are spent.
  4. 4. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 3, is characterized in that, the electrode of first group is corresponding with the mid frequency 61.7HZ that B note, pitch 1 are spent.
  5. 5. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 2, is characterized in that, second group:
    First electrode is corresponding with the frequency band 63.6--67.4HZ that C note, pitch 2 are spent;
    Frequency band 67.4-71.2HZ that second electrode spent with C#Db note, pitch 2 is corresponding;
    Frequency band 71.2 – 75.5 that the 3rd electrode spent with D note, pitch 2 are corresponding;
    Frequency band 75.6-80.0HZ that the 4th electrode spent with D#/Eb note, pitch 2 is corresponding;
    Frequency band 80.0-84.8HZ that the 5th electrode spent with E note, pitch 2 is corresponding;
    Frequency band 84.8-89.8HZ that the 6th electrode spent with F note, pitch 2 is corresponding;
    Frequency band 89.8-95.1HZ that the 7th electrode spent with F#/Eb note, pitch 2 is corresponding;
    Frequency band 95.1-100.9HZ that the 8th electrode spent with G note, pitch 2 is corresponding;
    Frequency band 100.9-106.8HZ that the 9th electrode spent with G#/Ab note, pitch 2 is corresponding;
    Frequency band 106.8-113.2HZ that the tenth electrode spent with A note, pitch 2 is corresponding;
    Frequency band 113.2-119.9HZ that the 11 electrode spent with A#/Bb note, pitch 2 is corresponding;
    Frequency band 119.9-127.1HZ that the 12 electrode spent with B note, pitch 2 is corresponding.
  6. 6. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 5, is characterized in that, second group
    First electrode is corresponding with the mid frequency 65.4HZ that C note, pitch 2 are spent;
    The mid frequency 69.3HZ that second electrode spent with C#Db note, pitch 2 is corresponding;
    The mid frequency 73.4 that the 3rd electrode spent with D note, pitch 2 is corresponding;
    The mid frequency 77.8HZ that the 4th electrode spent with D#/Eb note, pitch 2 is corresponding;
    The mid frequency 82.4HZ that the 5th electrode spent with E note, pitch 2 is corresponding;
    The mid frequency 87.3HZ that the 6th electrode spent with F note, pitch 2 is corresponding;
    The mid frequency 92.4HZ that the 7th electrode spent with F#/Eb note, pitch 2 is corresponding;
    The mid frequency 98.0HZ that the 8th electrode spent with G note, pitch 2 is corresponding;
    The mid frequency 103.8HZ that the 9th electrode spent with G#/Ab note, pitch 2 is corresponding;
    The mid frequency 110.0HZ that the tenth electrode spent with A note, pitch 2 is corresponding;
    The mid frequency 116.5HZ that the 11 electrode spent with A#/Bb note, pitch 2 is corresponding;
    The mid frequency 123.5HZ that the 12 electrode spent with B note, pitch 2 is corresponding.
  7. 7. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 2, is characterized in that, the 3rd group:
    First electrode is corresponding with frequency band 127.1-134.5HZ that C note, pitch 3 are spent;
    Frequency band 134.5-142.6HZ that second electrode spent with C#Db note, pitch 3 is corresponding;
    Frequency band 142.6-151.0HZ that the 3rd electrode spent with D note, pitch 3 is corresponding;
    Frequency band 151.0-160.1HZ that the 4th electrode spent with D#/Eb note, pitch 3 is corresponding;
    Frequency band 160.1-169.5HZ that the 5th electrode spent with E note, pitch 3 is corresponding;
    Frequency band 169.5-179.7HZ that the 6th electrode spent with F note, pitch 3 is corresponding;
    Frequency band 179.7-190.3HZ that the 7th electrode spent with F#/Eb note, pitch 3 is corresponding;
    Frequency band 190.3-201.7HZ that the 8th electrode spent with G note, pitch 3 is corresponding;
    Frequency band 201.7-213.6HZ that the 9th electrode spent with G#/Ab note, pitch 3 is corresponding;
    Frequency band 213.6-226.4HZ that the tenth electrode spent with A note, pitch 3 is corresponding;
    Frequency band 226.4-239.8HZ that the 11 electrode spent with A#/Bb note, pitch 3 is corresponding;
    Frequency band 239.8-254.1HZ that the 12 electrode spent with B note, pitch 3 is corresponding.
  8. 8. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 7, is characterized in that, the 3rd group:
    First electrode is corresponding with the mid frequency 130.8HZ that C note, pitch 3 are spent;
    The mid frequency 138.6HZ that second electrode spent with C#Db note, pitch 3 is corresponding;
    The mid frequency 146.8HZ that the 3rd electrode spent with D note, pitch 3 is corresponding;
    The mid frequency 155.6HZ that the 4th electrode spent with D#/Eb note, pitch 3 is corresponding;
    The mid frequency 164.8HZ that the 5th electrode spent with E note, pitch 3 is corresponding;
    The mid frequency 174.6HZ that the 6th electrode spent with F note, pitch 3 is corresponding;
    The mid frequency 185.0HZ that the 7th electrode spent with F#/Eb note, pitch 3 is corresponding;
    The mid frequency 196.0HZ that the 8th electrode spent with G note, pitch 3 is corresponding;
    The mid frequency 207.7HZ that the 9th electrode spent with G#/Ab note, pitch 3 is corresponding;
    The mid frequency 220.0HZ that the tenth electrode spent with A note, pitch 3 is corresponding;
    The mid frequency 233.1HZ that the 11 electrode spent with A#/Bb note, pitch 3 is corresponding;
    The mid frequency 246.9HZ that the 12 electrode spent with B note, pitch 3 is corresponding.
  9. 9. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 2, is characterized in that, the 4th group:
    First electrode is corresponding with frequency band 254.1-269.1HZ that C note, pitch 4 are spent;
    Frequency band 269.1-285.2HZ that second electrode spent with C#Db note, pitch 4 is corresponding;
    Frequency band 285.2-302.1HZ that the 3rd electrode spent with D note, pitch 4 is corresponding;
    Frequency band 302.1-320.2HZ that the 4th electrode spent with D#/Eb note, pitch 4 is corresponding;
    Frequency band 320.2-339.1HZ that the 5th electrode spent with E note, pitch 4 is corresponding;
    Frequency band 339.1-359.4HZ that the 6th electrode spent with F note, pitch 4 is corresponding;
    Frequency band 359.4-380.6HZ that the 7th electrode spent with F#/Eb note, pitch 4 is corresponding;
    Frequency band 380.6-403.4HZ that the 8th electrode spent with G note, pitch 4 is corresponding;
    Frequency band 403.4-427.2HZ that the 9th electrode spent with G#/Ab note, pitch 4 is corresponding;
    Frequency band 427.2-452.8HZ that the tenth electrode spent with A note, pitch 4 is corresponding;
    Frequency band 452.8-479.5HZ that the 11 electrode spent with A#/Bb note, pitch 4 is corresponding;
    Frequency band 479.5-508.2HZ that the 12 electrode spent with B note, pitch 4 is corresponding.
  10. 10. artificial cochlea's acoustic nerve conducting electrode array that can perception music rhythm as claimed in claim 9, is characterized in that, the 4th group:
    First electrode is corresponding with the mid frequency 261.6HZ that C note, pitch 4 are spent;
    The mid frequency 277.2HZ that second electrode spent with C#Db note, pitch 4 is corresponding;
    The mid frequency 293.7HZ that the 3rd electrode spent with D note, pitch 4 is corresponding;
    The mid frequency 311.1HZ that the 4th electrode spent with D#/Eb note, pitch 4 is corresponding;
    The mid frequency 329.6HZ that the 5th electrode spent with E note, pitch 4 is corresponding;
    The mid frequency 349.2HZ that the 6th electrode spent with F note, pitch 4 is corresponding;
    The mid frequency 370.0HZ that the 7th electrode spent with F#/Eb note, pitch 4 is corresponding;
    The mid frequency 392.0HZ that the 8th electrode spent with G note, pitch 4 is corresponding;
    The mid frequency 415.3HZ that the 9th electrode spent with G#/Ab note, pitch 4 is corresponding;
    The mid frequency 440.0HZ that the tenth electrode spent with A note, pitch 4 is corresponding;
    The mid frequency 466.2HZ that the 11 electrode spent with A#/Bb note, pitch 4 is corresponding;
    The mid frequency 493.9HZ that the 12 electrode spent with B note, pitch 4 is corresponding.
  11. 11. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 2, is characterized in that, the 5th group:
    First electrode is corresponding with frequency band 508.2-538.3HZ that C note, pitch 5 are spent;
    Frequency band 538.3-570.5HZ that second electrode spent with C#Db note, pitch 5 is corresponding;
    Frequency band 570.5-604.1HZ that the 3rd electrode spent with D note, pitch 5 is corresponding;
    Frequency band 604.1-640.5HZ that the 4th electrode spent with D#/Eb note, pitch 5 is corresponding;
    Frequency band 640.5-678.1HZ that the 5th electrode spent with E note, pitch 5 is corresponding;
    Frequency band 678.1-718.9HZ that the 6th electrode spent with F note, pitch 5 is corresponding;
    The frequency band 718.9---761.1HZ that the 7th electrode spent with F#/Eb note, pitch 5 is corresponding;
    The frequency band 761.1---806.9HZ that the 8th electrode spent with G note, pitch 5 is corresponding;
    The frequency band 806.9---854.3HZ that the 9th electrode spent with G#/Ab note, pitch 5 is corresponding;
    Frequency band 854.3-905.7HZ that the tenth electrode spent with A note, pitch 5 is corresponding;
    Frequency band 905.7-958.9HZ that the 11 electrode spent with A#/Bb note, pitch 5 is corresponding;
    Frequency band 958.9-1016.7HZ that the 12 electrode spent with B note, pitch 5 is corresponding.
  12. 12. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 11, is characterized in that, the 5th group:
    First electrode is corresponding with the mid frequency 523.3HZ that C note, pitch 5 are spent;
    The mid frequency 554.4HZ that second electrode spent with C#Db note, pitch 5 is corresponding;
    The mid frequency 587.3HZ that the 3rd electrode spent with D note, pitch 5 is corresponding;
    The mid frequency 622.3HZ that the 4th electrode spent with D#/Eb note, pitch 5 is corresponding;
    The mid frequency 659.3HZ that the 5th electrode spent with E note, pitch 5 is corresponding;
    The mid frequency 698.5HZ that the 6th electrode spent with F note, pitch 5 is corresponding;
    The mid frequency 740.0HZ that the 7th electrode spent with F#/Eb note, pitch 5 is corresponding;
    The mid frequency 784.0HZ that the 8th electrode spent with G note, pitch 5 is corresponding;
    The mid frequency 830.6HZ that the 9th electrode spent with G#/Ab note, pitch 5 is corresponding;
    The mid frequency 880.0HZ that the tenth electrode spent with A note, pitch 5 is corresponding;
    The mid frequency 932.3HZ that the 11 electrode spent with A#/Bb note, pitch 5 is corresponding;
    The mid frequency 987.8HZ that the 12 electrode spent with B note, pitch 5 is corresponding.
  13. 13. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 2, is characterized in that, the 6th group:
    First electrode is corresponding with frequency band 1016.7-1076.3HZ that C note, pitch 6 are spent;
    Frequency band 1076.3-1141.1HZ that second electrode spent with C#Db note, pitch 6 is corresponding;
    Frequency band 1141.1-1208.3HZ that the 3rd electrode spent with D note, pitch 6 is corresponding;
    Frequency band 1208.3-1280.7HZ that the 4th electrode spent with D#/Eb note, pitch 6 is corresponding;
    Frequency band 1280.7-1356.3HZ that the 5th electrode spent with E note, pitch 6 is corresponding;
    Frequency band 1356.3-1437.5HZ that the 6th electrode spent with F note, pitch 6 is corresponding;
    Frequency band 1437.5-1522.5HZ that the 7th electrode spent with F#/Eb note, pitch 6 is corresponding;
    Frequency band 1522.5-1613.5HZ that the 8th electrode spent with G note, pitch 6 is corresponding;
    Frequency band 1613.5-1708.9HZ that the 9th electrode spent with G#/Ab note, pitch 6 is corresponding;
    Frequency band 1708.9-1811.1HZ that the tenth electrode spent with A note, pitch 6 is corresponding;
    Frequency band 1811.1-1918.3HZ that the 11 electrode spent with A#/Bb note, pitch 6 is corresponding;
    Frequency band 1918.3-2032.7HZ that the 12 electrode spent with B note, pitch 6 is corresponding.
  14. 14. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 13, is characterized in that, the 6th group:
    First electrode is corresponding with the frequency band 1046.5HZ that C note, pitch 6 are spent;
    The frequency band 1108.7HZ that second electrode spent with C#Db note, pitch 6 is corresponding;
    The frequency band 1174.7HZ that the 3rd electrode spent with D note, pitch 6 is corresponding;
    The frequency band 1244.5HZ that the 4th electrode spent with D#/Eb note, pitch 6 is corresponding; The frequency band 1318.5HZ that the 5th electrode spent with E note, pitch 6 is corresponding;
    The frequency band 1396.9HZ that the 6th electrode spent with F note, pitch 6 is corresponding;
    The frequency band 1480.0HZ that the 7th electrode spent with F#/Eb note, pitch 6 is corresponding;
    The frequency band 1568.0HZ that the 8th electrode spent with G note, pitch 6 is corresponding;
    The frequency band 1661.2HZ that the 9th electrode spent with G#/Ab note, pitch 6 is corresponding;
    The frequency band 1760.0HZ that the tenth electrode spent with A note, pitch 6 is corresponding;
    The frequency band 1864.7HZ that the 11 electrode spent with A#/Bb note, pitch 6 is corresponding;
    The frequency band 1975.5HZ that the 12 electrode spent with B note, pitch 6 is corresponding.
  15. 15. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 2, is characterized in that, the 7th group:
    First electrode is corresponding with frequency band 2032.7-2153.3HZ that C note, pitch 7 are spent;
    Frequency band 2153.3-2281.7HZ that second electrode spent with C#Db note, pitch 7 is corresponding;
    Frequency band 2281.7-2416.9HZ that the 3rd electrode spent with D note, pitch 7 is corresponding;
    The frequency band 2416.9---2561.1HZ that the 4th electrode spent with D#/Eb note, pitch 7 is corresponding;
    Frequency band 2561.1-2712.9HZ that the 5th electrode spent with E note, pitch 7 is corresponding;
    Frequency band 2712.9-2874.7HZ that the 6th electrode spent with F note, pitch 7 is corresponding;
    Frequency band 2874.7-3045.3HZ that the 7th electrode spent with F#/Eb note, pitch 7 is corresponding;
    Frequency band 3045.3-3226.7HZ that the 8th electrode spent with G note, pitch 7 is corresponding;
    Frequency band 3226.7-3418.1HZ that the 9th electrode spent with G#/Ab note, pitch 7 is corresponding;
    Frequency band 3418.1-3621.9HZ that the tenth electrode spent with A note, pitch 7 is corresponding;
    Frequency band 3621.9-3836.7HZ that the 11 electrode spent with A#/Bb note, pitch 7 is corresponding;
    Frequency band 3836.7-4065.5HZ that the 12 electrode spent with B note, pitch 7 is corresponding.
  16. 16. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 15, is characterized in that, the 7th group:
    First electrode is corresponding with the mid frequency 2093.0HZ that C note, pitch 7 are spent;
    The mid frequency 2217.5HZ that second electrode spent with C#Db note, pitch 7 is corresponding;
    The mid frequency 2349.3HZ that the 3rd electrode spent with D note, pitch 7 is corresponding;
    The mid frequency 2489.0HZ that the 4th electrode spent with D#/Eb note, pitch 7 is corresponding;
    The mid frequency 2637.0HZ that the 5th electrode spent with E note, pitch 7 is corresponding;
    The mid frequency 2793.8HZ that the 6th electrode spent with F note, pitch 7 is corresponding;
    The mid frequency 2960.0HZ that the 7th electrode spent with F#/Eb note, pitch 7 is corresponding;
    The mid frequency 3136.0HZ that the 8th electrode spent with G note, pitch 7 is corresponding;
    The mid frequency 3322.4HZ that the 9th electrode spent with G#/Ab note, pitch 7 is corresponding;
    The mid frequency 3520.0HZ that the tenth electrode spent with A note, pitch 7 is corresponding;
    The mid frequency 3729.3HZ that the 11 electrode spent with A#/Bb note, pitch 7 is corresponding;
    The mid frequency 3951.1HZ that the 12 electrode spent with B note, pitch 7 is corresponding.
  17. 17. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 2, is characterized in that, the 8th group:
    First electrode is corresponding with frequency band 4065.5-4306.5HZ that C note, pitch 8 are spent;
    Frequency band 4306.5-4563.3HZ that second electrode spent with C#Db note, pitch 8 is corresponding;
    Frequency band 4563.3-4833.9HZ that the 3rd electrode spent with D note, pitch 8 is corresponding;
    Frequency band 4833.9-5122.1HZ that the 4th electrode spent with D#/Eb note, pitch 8 is corresponding;
    Frequency band 5122.1-5425.9HZ that the 5th electrode spent with E note, pitch 8 is corresponding;
    Frequency band 5425.9-5749.5HZ that the 6th electrode spent with F note, pitch 8 is corresponding;
    Frequency band 5749.5-6090.3HZ that the 7th electrode spent with F#/Eb note, pitch 8 is corresponding.
  18. 18. artificial cochlea's acoustic nerve conducting electrode arrays that can perception music rhythm as claimed in claim 17, is characterized in that, the 8th group:
    First electrode is corresponding with the mid frequency 4186.0HZ that C note, pitch 8 are spent;
    The mid frequency 4434.9HZ that second electrode spent with C#Db note, pitch 8 is corresponding;
    The mid frequency 4698.6HZ that the 3rd electrode spent with D note, pitch 8 is corresponding;
    The mid frequency 4978.0HZ that the 4th electrode spent with D#/Eb note, pitch 8 is corresponding;
    The mid frequency 5274.0HZ that the 5th electrode spent with E note, pitch 8 is corresponding;
    The mid frequency 5587.7HZ that the 6th electrode spent with F note, pitch 8 is corresponding;
    The mid frequency 5919.9HZ that the 7th electrode spent with F#/Eb note, pitch 8 is corresponding.
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