Week 5 homework modulation

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Hi again, my name is Guillermo Delgado from Mexico City and i am excited because is week 5 of this great course and all things are going really well with my learning to improve my production works. Again please excuse me about my bad english but i am trying to do the best in my assignments to get everybody understand what i am trying to teach. Until next week,


1Demonstrate two of the three types of modulated short delay effects (flanger, phaser, chorus). First lets think that a Delay is a sound effect that consists in multiplication and delay of an audio signal. The processed signal is mixed with the original.Knowing what a Delay is then we can talk about a variation of this processors, the modulators, in other words The signals are repeated with a slight delay and subject to a small frequency variation.

4Modulation effects are used to add movement and depth to the sound. Normally they act by slowing the incoming signal a few milliseconds and using an LFO to modulate the delayed signal. LFO can also be used to modulate the delay time at some effects.


A low frequency oscillator (LFO) is very similar to the sound generating oscillators found on synthesizers, but the frequencies generated by an LFO are so low that they can be heard. Therefore only used for modulation purposes. LFO parameters are speed (or frequency) and depth, also called intensity control.

You can also control the ratio of the signal affected (wet) and the original signal (dry). Some modulation effects include feedback parameters that add some of the output of the effect back to its input.Various modulation effects are related to the pitch.


This parameter adjusts the delay we want to be repeated by duration, ie, how often will repeat the signal.

There is an equation to calculate the delay time (delay):

Multiplying the result by 1000, we get the value in milliseconds. (1 sec = 1000 ms).Alternatively you can use modern tools for computing repetitions in your phone, tablet or computer.

Practical example:How many milliseconds (ms) should I have to adjust the repeats of a mono delay for an echo to sound just after a measure beat, if the meter is 4/4 and the song goes to 118 bpm?Apply the formula:= In other words a beat equals 0.508 secs?Or what is the same 0.508 x 1000 = 508 ms


What I understand about feedback is the number of times an original sound signal is repeated, we can set any value between one and infinity.

In other words the signal output of the delay is readmitted to the same input to be processed and can be repeated again and again and again.The amount of feedback is controlled by the user and what this means is that the signal processor will enter, and then will be delayed by the amplifier while the entry will be reentered in the amount of delay that is required to be processed again.


In my opinion Dry/Wet Mix Parameter is the amount of delayed sound that is mixed with the original. You can set parameter to Dry if no effect is required or eventually rise the knob to increase the amount of effect until get total wet.


DRUMS WITHOUT FLANGER DRUMS WITH FLANGERIt is a typical effect used on electric guitars. Is achieved by performing a combination of delay and LFO. That delay values may vary between 1 and 15 ms and low frequency between 0.03 and 1 Hz. To get the effect, part of the low frequency signal is input to the delay circuit adding to the direct signal.

Operation is based on a slight delay constantly alternating the modulation produced by the LFO, getting a phase change of the processed signal with the original. Requires both output levels or mixing original and processed, are similar and greater expression is achieved the higher the frequency spectrum treaty.


BASS WITHOUT CHORUS BASS WITH CHORUSThe Chorus effect delays the original signal. The delay time is modulated with an LFO. Delayed and modulated signal is mixed with the original signal, dry.You can use the Chorus effect to enrich the incoming signal and create the impression that they are playing various instruments and there are several voices singing in unison. The slight variations in the time delay generated by the LFO simulate the subtle pitch and timing differences you hear when several musicians and vocalists perform together. The use of chorus also adds fullness or richness to the signal, and can add movement to low or sustained sounds.

Again thanks for read my presentation and hope to be useful and clear with my terms.Until next week have a good recording.