What is modulation law invariance? What is the law of pitch change of one and no

Modulation frequency: In the case of commonly used and common sine waves, frequency is the number of 360-degree cycles that can be generated per unit of time (usually measured in 1 second). Then the time it takes to complete each cycle is the cycle.

Apparently they are reciprocal! "If part of the potential of the carrier becomes lower due to the low potential of the remote control information, its period will change." I'll tell you more about it:

You should know that each scale in ** is a sine wave of one frequency. 1 2 2 3 4 5 6 7 i .For example, if you use the frequency of 3---mi--- as the carrier, the remote control command code you want to send is 10011010.

Then the remote control signal I described to you becomes--- 3 0 0 3 0 3 0 --- of course, each 3 must contain at least 6 sine waves with a frequency of 3! Note: 0 means that there is no sound at rest!

This is the on-off control in digital coding. The change in level controls the presence and absence of the carrier, not the change in frequency!

The mixing circuit is to change the high-frequency modulated signal into an intermediate frequency modulated signal, and the modulation law of the modulated signal remains unchanged.

The dividend and the divisor are multiplied or divided by the same number at the same time (except 0), and the quotient does not change.

Basic Nature of Fractions:

The numerator of the fraction and the denominator are expanded or contracted by the same multiple at the same time, and the fractional value remains the same.

The pitch change rules of one and no are as follows:

1) The pitch change of "one":

The original tone of "一" is a sound, which is still pronounced when used alone, at the end of a word, or as an omission of the ordinal number "first". For example: one, two.

Ten. I.

First, the beginning. 1. Class 1. There are several situations in which the "one" is transposed:

1) Recite two tones before the four tones. For example: all at once, one, one, once, together.

2) Recite four tones before one, two, and three tones. For example: Surprise, General, Year, One Door, One Mouthful, Together, One.

3) Pronounce softly when sandwiched between overlapping verbs. For example: give it a try, think about it, take a look.

4) It is also commonly pronounced softly between verbs, adjectives and quantifiers. For example: a trip, get acquainted, a little better, a little more expensive.

2) "No" pitch change:

The tone of "no" is a four-tone tone, which is still pronounced when used alone, at the end of a sentence, or before a non-four-tone word. For example: no, not high, don't know, different, not used to, don't lie to you, a lot, bad, dissatisfied.

There are a few situations where "no" will be transposed:

1) Recite two tones in front of the four tones. For example: don't, good, no, no more, don't know.

2) Pronounce softly in the middle of a verbal structure or in the middle of the same word. For example: can't get up, maybe, don't need it, almost, can't wait, can't it, will it be, expensive or not, know or not.

The law of no pitch change is:

1. When the following words are one, two, and three, the word "no" should be read four times.

2. When the following word is four tones, the word "no" should be read twice. For example: no (four tones) no (second tone) wrong.

Pitch change refers to the phenomenon that when Chinese syllables are continuously pronounced, the tonality of some syllables will be affected by the tone of the following syllables, thus changing. The procedure of changing the pitch in all tonal languages is an active act, but in some respects it is also a linguistically more universal form of tonal conjunction.

One" of the law of pitch change:

1) Single pronunciation or used at the end of the word, or to indicate ordinal numbers, cardinal numbers, etc., read the original tone Yin Ping, for example: say one is not two, count one and count two, one class, first floor, unity, uniformity, in case.

2) Read Yang Ping before going out of voice e.g. Consistent, Burst, Everything, One Piece.

3) Read the avocalization before non-detonation, for example: a cup, all the time, in the morning.

4) Sandwich between the words and become soft, take a look, try it, wait a minute, read Yin Ping.

The inflection law of the pronunciation of "no" is that when the word after "no" is one, two, or three tones, the word "no" should be read four times; When the word after "no" is four tones, the word "no" should be read twice. Such as: no (four tones) no (two tones) wrong; No (two tones) to no (two tones) will; No (four tones) is good (four tones) yes.

How do "one" and "no" change tone? There are 4 situations in total, and the tone is different.

Original pronunciation: bù

Examples: No, no.

The first type of pitch is pronounced bú

Examples: No, don't.

Judgment method: when the words after "no" are one, two, or three, "no" should be read four times; When the word after "no" is four tones, "no" should be read twice.

"不" should be pronounced as "yangping" bú in front of "go to sound" (the fourth tone), e.g., no, don't wait. In "Yin Ping, Yang Ping and Shang Sheng" (p.

1, 2, 3) should be read before "to sound" bù, such as: do not follow, can't, don't give, etc.

How do "one" and "no" change tone? There are 4 situations in total, and the tone is different.

"Ah" is pronounced as "a" alone, but when it is used at the end of a sentence, the pronunciation changes due to the influence of the previous vowel or ending. Its changes are mainly as follows:

The rhyme ending of the previous one is "a, o, e, i, u, 時, pronounced "ia", and the Chinese character is written "呀".

Such as: aWhat a good rice (ya) (ya) b快去(呀) (ya) When the rhyme ending of the previous one is "u, ao, ou", it is pronounced as "ua", and the Chinese character is written as "wow".

Such as: aHow nice this man is (wow) (wa) b快走 (wow) (wa) When the rhyme ending of the previous one is "n", it is pronounced as "na", and the Chinese character is written as "which".

Such as: aQuickly open the door (which) (na) bIt's really worrying (which) (na) When the rhyme ending of the previous one is "ng", it is pronounced as "nga", and the Chinese character is still written as "ah".

Such as: aTrue Jing (Ah) (NGA) BListen (ah) (nga).

The transposition of "Ahhhh

Ah" has six forms of pitch change, let's take a look:

First: When the end of the previous syllable is a, o (except ao), e, i, ě, pronounce ya (ya).

For example: You go and say!

Type 1: The end of the previous syllable is u or ao, which is pronounced wa (wow).

For example: He's a pretty good person!

First: When the end of the syllable of the previous one is n, read na (that).

For example: What a wonderful person!

Type: When the end of the previous syllable is ng, it is pronounced nga.

For example: Listen up!

Type 1: When used alone, it still reads a.

The first type is used at the beginning of the sentence to read four tones.

For example: āah! You've let him go? (Surprised, surprised) Ah! Haven't you finished yet? (to express impatience or to come back to one's senses) ǎah! You're Xiao Ming. (I confirm and understand).

Yes! What a blue sky! (exclamation).