Let's start with a simple sound — the sound of one harmonic frequency of 500 Hz.
For his audition nazhmёm on the sound itself —
new window will open with a synthesizer.
At the top of the window will glow green with our sound. To play it, you need to click on the big button «Play».
As you can see and hear nothing remarkable in that sound there.
Let's try to change his attack and recession, and see how it changes the sound.
To this end, the first and last point of the graph of the envelope of sound «CAR» (carrier) we drop to the bottom, and the second — to move the very top:
As we hear the sound became much nicer.
By the way, to add to the chart point is very simple — just click on it in the right place.
Delete the point and simple — you need to click on the chosen twice in a row.
But we have two channels, left and right, so do not forget to make changes in both.
This task can be simplified and easily copy data from one channel to another by clicking on the button.
And in order to «Synthesizer» to look at the second channel, press it on the «Channel 2».
Verify separate operation channels in the first channel construct odnuyu envelope, while the second — a completely different.
Listen and watch: like echo each other two channels.
Next we will see how the joint work of the two channels form a nice stereo.
One way to hear it — just shift between the frequencies of the first and the second channel.
Compare two sounds: with frequency offset and the second in a row
This musical effect is called «flying sound» or «phaser».
Interestingly, the beats that you hear is not formed in the synthesizer, and the listener's head.
Now we are expanding the range of our sound. To do this, add to the harmonic signal of several harmonics —
The sound is richer, more interesting.
By the way, even more enhance the effect of the sound of flying, you can add one more sound in each channel.
This is done by moving the slider to the extreme right in the «Frequency» field.
As a result, each channel will sound one, but two of displaced on the frequency of sound —
The amount of displacement shows key slider.
From the theory it is known that the first time determines the perception of sound in the entire sound whole.
It is called the «attack». This is a very important component, so focus on it in detail.
To set the «attacks» need to click twice on the very first point of the schedule «CAR».
This opens an additional field where you need to specify the point of building an «attack.»
Let's try to make this attack:
, and compare it with the sound of the penultimate.
By the way, this field can collapse the same way — by clicking twice on the first point of the schedule.
You can add a few more points on the graph of «CAR» and get the sound of the first tool — .
Exactly the same manipulations can (and should) be prodelyvat with other schedules.
If you go through this tutorial series, in the top of the synthesizer it has had to add quite a lot of sounds.
Remove excess can by clicking on it twice.
Take one of the previously created sounds
and move on to the chart «CAF» (carrier frequency).
There move the last point in the top (in both channels). We get such a sound —
Alternatively, the first move the channel up the last point, and the second — down:
And expanding the range and changing the location and number of points of this graph can be obtained at all exotic sounds, for example —
This is a very important function, without which it is impossible synthesis of many sounds.
In addition, they form the basis of a direction — FM-synthesis.
For this modulation meet two of the following schedule: «FM» and «FMF».
Let's try to add previously created sound just a little bit of frequency modulation,
and now compare these two sounds:
If we increase the modulation depth and frequency, it is possible to obtain such sounds:
And looking ahead, and using with this modulation amplitude and frequency filters can be synthesized:
Modulation two following schedule devoted to: «AM» and «AMF».
First — this determines the weight of the modulation signal in general, and the second — the very modulation.
Take one of the previously received sounds and mix with to 50% amplitude modulation.
Samu modulation, as well as its weight will make is constant over the entire time interval —
Now increase the modulation frequency on the graph «AMF» —
Using all the information obtained earlier try to synthesize the sound of the grandfather clock — ,
or modern style —
Note that the graph itself «AM» does not bear the load. It works only with «AMF».
Noise although considered harmful phenomenon, yet in some cases it is simply necessary. Especially, if the noise is manageable!
For a quick understanding of the process just take our third sound, move on to the tab «NOI» (noise) and move the two points at the top.
So we are giving to understand synthesizer that want to completely replace the harmonics noise. Listen —
Now add some harmonics —
— and hear the noise changed. He became richer.
If you look at the spectrogram obtained by the sound, we see our core rod surrounded by decaying harmonics on both sides of sounds of varying amplitude and frequency.
With noise sound effects work is quite interesting.
From them you can get the sounds of the wind, the storm, the sea of noise.
Various mechanisms publish excellent sound effects, such as: or .
Wind Instruments, usually require to mix sound to the main bit of noise as it is a logical component of the air flow through the pipe,
for example, bassoon — .
So we got up quite complex sound — piano.
Without the addition of noise during the «attack» to get such a sound would be very difficult — .
It is not obvious component of certain sounds is the shift of harmonic oscillations in a negative or a positive way, with respect to their mean values.
However, this effect is well applicable for drums or the like sounds.
If you go to the chart «CC» (constant component), and move the point upwards, the sound, especially at the beginning of change.
Listen to and watch examples of drums —
This effect is well combined with the noise, especially during the «attack» —
This divides the sound effect on the length of the individual pieces, in each of which the volume and duration can be adjusted.
It is also regulated by the total number of such pieces.
It will be easier to understand by the example —
If you look at the «Filling», we can see that the number of pieces — 25, the duration — 20% (based on the length of the piece), and filling — 39%.
Look and listen to a couple of examples of this remarkable effect:
When filling in 100%, this effect is absent.
This function carries a multiple appointments.
First and foremost — it limits the frequency range of sound.
This is necessary because some contain sounds with a very many harmonics,
some of which are «climbs» for dynamic range of the synthesizer, or may simply be redundant.
In addition, by limiting the frequency range of the «top» decreases the volume of the audio file, which is also important.
The third purpose of this function is a sound effect, with which you can get the sounds of water, birds singing, flute, etc. — , , .
If possible, try to limit the frequency band of the high pass.
This should be a reasonable minimum, below which is already greatly changed the sound itself, and the above — simply does not make sense to do.
Evolution of sound
This experiment is rather a joke, but with its deeper meaning: any sound you can get from another by small changes in the latter.
So, create a noise of a mechanism —
Simply increasing the frequency and get a quite different sound. Let's call it a transition —
Slightly changing the filter settings and get the sound of a night bird —
Then just change the sound duration — from 1 to 0.5 seconds, and — it is incredible, this is the sound of dripping water —
Return the length of the old, little change filter settings — get daily singing birds —