Home » Arts and Entertainment » Music

All You Want To Know About FM Synthesis

Nov 15, 2007
FM synthesis stands for Frequency Modulation synthesis. Its initial uses were in the field of radio transmission. It was in the year of 1970 that it began to be used in the field of music. It is considered important as it can create complex sounds from simple sine waves. In other words, it is a form of audio synthesis where the timbre of a simple waveform is changed by frequency. It is altered with a modulating frequency, which is also in the audio range. This further results in a more complex waveform and a dissimilar sounding tone.

However, to synthesis a harmonic sound, the modulating signal must have a harmonic relationship to the original carrier signal. It is very good in creating harmonic as well as inharmonic sound. Proper and complex FM synthesis that uses analog oscillator is not generally feasible due to the presence of inherent pitch instability. However, with the input from frequency stable phase modulation variant is uncomplicated for implementing in a digital set up.

Radio Engineers describes, when f(t) is directly proportional to the derivative of the modulating signal. Here f(t) stands for some arbitrary function added to the carrier. In FM synthesis with the increase of frequency modulation the sound too grows progressively quite complex. Also, with the use of the modulators along with the frequencies that are non integer multiples, the non harmonic signals can easily be created.

The FM synthesis is a type of distortion synthesis or better explained as nonlinear synthesis. It starts with an oscillator generating an audio frequency known as carrier waveform with a frequency of Fc. An audio frequency modulating waveform, with a frequency Fm is further applied to change or alter the frequency of the carrier oscillator. As explained before, this means that the louder the modulating signal, the more the carrier frequency changes.

A modulating waveform containing many frequencies will create many FM sidebands. The deviation is partly responsible for the power of each component of the output audio signals. You should know that the larger the deviation, the more power is shifted to the sidebands. As you vary deviation through modulation amplitude, and vary the spectrum of the modulating waveform, the resulting audio can be progressed without any further instrument complication.

FM synthesis was first discovered somewhere in the year of 1967 or 1968 at Stanford University by John Chowning. Mr. Chowning discovered it when he sped up the vibrato to the point that it started creating audible sidebands rather than faster warbling. The audible sidebands are perceived as timbral change. On the other hand the warbling is perceived as a frequency change.

In the year 1975, it was patented and licensed to Yamaha. Yamaha later patented its hardware implementation; this almost created a monopoly in the technology based areas. The patent however, expired in the year 1995.

FM synthesis is now a common part of the synthesis collection of most of the modern synthesizers. They are usually in combination with additive, subtractive and sampling techniques.
About the Author
Victor Epand is an expert consultant for guitars, drums, and synthesizers. You can find the best marketplace for guitars, drums, and synthesizers at these 3 sites: guitars, drums, drum sets, drum kits, and synthesizers set up, keyboards set up.
Rating:
Please Rate:
(Average: Not rated)
Views: 123
Print Email Report Share
Article Categories
    • Classic Cars
    • Motorcycles
    • Recreational Vehicles
    • SUVs
    • Trucks
    • Vans
    • Branding
    • Business Opportunities
    • Careers and Jobs
    • Corporate
    • Customer Service
    • Direct Mail
    • Entrepreneurship
    • Ethics
    • Financing
    • Franchising
    • Home-Based Business
    • Human Resources
    • Import and Export
    • Leadership
    • Management
    • Market Research
    • Marketing and Advertising
    • Negotiation
    • Network Marketing
    • Networking
    • Organizational
    • Presentation
    • Project Management
    • Public Relations
    • Small Business
    • Strategic Planning
    • Team Building
    • Telemarketing
    • Training
    • Data Recovery
    • Databases
    • Games
    • Hardware
    • Networks
    • Operating Systems
    • Programming
    • Security
    • Software
    • Spyware and Viruses
    • Ask an Expert
    • College and University
    • Home Schooling
    • K-12
    • Languages
    • Online Education
    • Psychology
    • Accounting
    • Credit
    • Currency Trading
    • Debt Consolidation
    • Insurance
    • Investing
    • Leasing
    • Loans
    • Mortgage
    • Mutual Funds
    • Personal Finance
    • Stock Market
    • Structured Settlements
    • Taxes
    • Wealth Building
    • Coffee
    • Cooking
    • Gourmet
    • Recipes
    • Wine and Spirits
    • Acne
    • Aerobics
    • Alternative Medicine
    • Beauty
    • Cancer
    • Cosmetics
    • Depression
    • Diabetes
    • Diseases and Conditions
    • Fitness Equipment
    • Fitness
    • Hair Loss
    • Heart Disease
    • Medicine
    • Men's Health
    • Muscle Building
    • Nutrition
    • Skin Care
    • Supplements and Vitamins
    • Weight Loss
    • Women's Health
    • Yoga
    • Arts and Crafts
    • Babies
    • Collecting
    • Elderly Care
    • Genealogy
    • Hobbies
    • Parenting
    • Pets
    • Pregnancy
    • Woodworking
    • Feng Shui
    • Gardening
    • Home Appliances
    • Home Security
    • Interior Design
    • Landscaping
    • Affiliate Programs
    • Article Marketing
    • Auctions
    • Audio
    • Banner Advertising
    • Blogging
    • Broadband
    • Domain Names
    • E-Books
    • E-Commerce
    • Email Marketing
    • Ezines and Newsletters
    • Forums
    • Internet Marketing
    • Link Popularity
    • Pay-Per-Click
    • Podcasting
    • RSS
    • Search Engine Marketing
    • Search Engine Optimization
    • Security
    • Social Media
    • Spam
    • Video
    • Viral Marketing
    • Web Design
    • Web Development
    • Web Hosting
    • Copyright
    • Cyber Law
    • Intellectual Property
    • National, State, Local
    • Patents
    • Regulatory Compliance
    • Trademarks
    • Buying
    • Selling
    • Baseball
    • Basketball
    • Boating
    • Cycling
    • Extreme Sports
    • Fishing
    • Football
    • Golf
    • Hockey
    • Hunting
    • Martial Arts
    • Running
    • Scuba Diving
    • Soccer
    • Swimming
    • Tennis
    • Dating
    • Divorce
    • Marriage
    • Weddings
    • Astrology
    • Buddhism
    • Christianity
    • Faith
    • Hinduism
    • Islam
    • Judaism
    • Meditation
    • Metaphysical
    • New Age
    • Cable and Satellite TV
    • Cell Phones
    • Communication
    • Gadgets and Gizmos
    • GPS
    • Satellite Radio
    • Video Conferencing
    • VoIP
    • Addictions
    • Coaching
    • Goal Setting
    • Motivational
    • Stress Management
    • Time Management
    • Clothing
    • Electronics
    • Fashion
    • Gifts
    • Jewelry
    • Causes and Organizations
    • Environment
    • History
    • Holidays
    • Men's Issues
    • Nature
    • Philosophy
    • Politics
    • Women's Issues
    • World Affairs
    • Air Travel
    • Camping
    • Cruises
    • Destinations
    • Outdoors
    • Article Writing
    • Book Reviews
    • Copywriting
    • Fiction
    • Non-Fiction
    • Poetry
    • Quotes
    • Screenplay
    • Tools and Resources