Modulation Synthesis

Jan 12, 2013

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Modulation Synthesis

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Modulation Synthesis

258 views • 12 slides

Angle Modulation – Frequency Modulation

Angle Modulation – Frequency Modulation. Consider again the general carrier . represents the angle of the carrier. . There are two ways of varying the angle of the carrier. By varying the frequency,  c – Frequency Modulation. By varying the phase,  c – Phase Modulation. 1.

1.33k views • 48 slides

MODULATION

MODULATION. 1. What is modulation?. 1. What is modulation?. Modulation is the process of putting information onto a high frequency carrier for transmission ( frequency translation).

1.46k views • 72 slides

Non-linear Synthesis: Beyond Modulation

Non-linear Synthesis: Beyond Modulation. Feedback FM. Invented and implemented by Yamaha Solves the problem of the rough changes in the harmonic amplitudes caused by Chowning FM. Single Osc Feedback FM.

324 views • 17 slides

Modulation

Modulation. Digital data can be transmitted via an analog carrier signal by modulating one or more of the carrier's three characteristics: amplitude frequency phase . Modulation.

597 views • 22 slides

Modulation

Modulation. Modulation: Encoding information in baseband signal and then translating (shifting) signal to much higher frequency prior to transmission Primary goal is to transport information thru MRC with the best quality (low BER), lowest power, & least amount of frequency spectrum

497 views • 16 slides

Modulation

Modulation. Chapter 15. Modulation. Process that results in a shift of tonal center Commonly called a key change. Closely Related Keys. Keys that differ by no more than one accidental in the key signature and the relative major or minor Example: a minor

284 views • 6 slides

Modulation

Modulation. Shifting from one established key to a new key. . Closely Related Keys. Most modulations occur between closely related keys. . Each key signature has FIVE closely related keys: Relative minor/major Key signatures with one more and one less accidental than the original

466 views • 7 slides

Modulation

Modulation. Conversion of digital information to analog signals Example: Telephone lines are band-limited (300-3300Hz) Modem = mo dulator/ dem odulator Characteristics of defining sine waves: Amplitude Frequency Phase. Change one or more of them to send information. Modulation.

522 views • 10 slides

Modulation

206 views • 7 slides

Modulation

Modulation. Third Meeting. Bandwidth. Analogue bandwidth Sharp cut-off frequencies f 1 and f 2, has bandwidth f 1 – f 2 Idealized spectrum is impossible to achieve in practice The cut-off frequency has dropped to 1/√2 ≈ 0.707 of its maximum value Digital Bandwidth

453 views • 19 slides

Modulation

Modulation. Modulation to the Dominant Key. Let’s consider a chord progression in the key of C C, Am, F, G The Dominant key of C is G. Dominant Key. A simple way to get to the key of G is by playing a D7 at the end of the sequence.

479 views • 11 slides

Modulation

Modulation. Kevin Bolding Electrical Engineering Seattle Pacific University. Digital Transmission of Analog Data. Analog signal. Sampling. Convert to discrete samples (time domain). Quantizing. Convert to discrete levels (amplitude). Digital data.

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Angle Modulation: Phase Modulation or Frequency Modulation

Angle Modulation: Phase Modulation or Frequency Modulation. Basic Form of FM signal: Constant Amplitude Information is contained in D f (t). Instantaneous Phase: q (t). Define Phase Modulation Index, m p , to restrict D f ( t ) such that. Phase Deviation.

1.1k views • 8 slides

Modulation

Modulation. Suppose we take the product of two signals:. In general, for any function X(f) , we have. In general, for DSB-SC, we have. X. m(t). x c (t). cos w c t. Phase Modulation. Equating the real and the imaginary parts, we have. A general sketch of the spectrum is shown below.

1.34k views • 112 slides

Modulation

Modulation. Low-frequency messages cannot be sent over an airwave medium. The low-frequency messages can be converted into high-frequency signals for the purpose of airwave communication.

903 views • 50 slides

Angle Modulation – Frequency Modulation

Angle Modulation – Frequency Modulation. Consider again the general carrier. represents the angle of the carrier. There are two ways of varying the angle of the carrier. By varying the frequency,  c – Frequency Modulation. By varying the phase,  c – Phase Modulation. 1.

644 views • 48 slides

Modulation

Modulation. Definitions. Amplitude: “Size” Frequency: “Rate of occurrence” Phase: “Position or interval within a cycle” Modulation: “To vary amplitude, frequency, or phase”. “Magical”. “Carrier”. Voltage or Current. Pure Sine Wave (146 MHz, no info). NOT These. Time or Distance.

930 views • 66 slides

Modulation Synthesis

Modulation Synthesis. Amplitude and Ring Modulation. Modulation. In electronic and computer music terms, modulation means that some aspect of one signal (the carrier ) varies according to an aspect of a second signal (the modulator )

171 views • 5 slides

Modulation

Modulation. Modulation => Converts from digital to analog signal. Demodulation => Converts from analog to digital signal.

337 views • 22 slides

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