The Making of Music and Basic Digital Synthesis

Posted on April 8, 2009 @ 3:15 am
by Dean Hunt

Playing around with Fm synthesis or the general approaches is fantastic, but there are a lot more that can be done with the sound synthesis.

There are boundaries as to what could be easily performed with the latest methods of synthesis basically due to the fact that they are computer based. The full concept of digital synthesis is set on trying to duplicate acoustic and also analogue sounds. There’s constantly numerous ideas and techniques being utilized, and the success is set on how accurate is the audible reproduction.

4 essential methods are recommended.

Method 1 : Frequency Domain – Spectral Modeling Say we took the Hartmann Neuron synthesizer as an example, you would find it being a spectral model. Its well utilised in additive synthesis and also re-synthesis. This’s relating to the frequency domain.

Method two : Physical Modeling Physical sounds such as spring simulations or mass simulations could be genuinely closely reproduced by physical modeling. This is because this type of modeling counts on mathematical models derived from the acoustical basis of instruments and also components. If you really want to attain those plucked sounds, then this’s attained from the Karplus Strong synthesis, via physical modeling.

Method 3 : No Model Sound Attempt This’s also name as loose modeling. This’s the method to be applied to AM, Walsh, FM along with Wavetable synthesis.

Method four : Time Domain For granular synthesis, waveform composition and also wave-set distortion you would want to use time based modeling.

Walsh synthesis is able to make new waveforms by applying a good deal of square wave forms, plus it’s completely digital. Theres one problem with this technique though, and that is the difficulty with being able to adjust the frequency spectrum. For a non complete digital or analogue, you would want to try Digital FM synthesis. In respect to complicated modulation, it is way more adjustable.

Some try to utilize LFO-type modulation or Yamahass operator concept. For illustration this’s what FM synthesis is based on. However, it does not achieve huge success with trying to be like analogue subtractive synthesis. The PPG Wave and Waldorfs Microwave series could take the credit for making Wave table synthesis so popular. Fragmented pieces of sampled sounds are merely played back and looped just like a sampler. To make this yet less tricky, you can take advantage of filters, envelopes and LFOs which are all the general features.

Please remember that the 4 methods we noted are capable of using analogue components. Yet they’re still digitally-based.

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