Questions tagged [modulation]

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4 votes
3 answers
6k views

FM and PM synthesis - what is the difference and why?

I heard in numerous places that Yamaha DX7 used Phase Modulation in spite of being advertised as an "FM synthesizer". An opensource synthesizer called ZynAddSubFX has both PM and FM modulation modes ...
0 votes
1 answer
20 views

I want to get started with modulation recorded audio

In there an app (preferably Android) that can take a audio recording (music, voice, etc.) and change the frequency to above or below human hearing (infrasonic and ultrasonic) and vice versa. I want ...
10 votes
5 answers
2k views

How do you create Single Sideband Modulation (SSB)?

We've heard this sound before (think Star Wars), and I've never tried to create it but have wondered about how it is done. Then I heard it again today here and stumbled upon one person's explanation: ...
1 vote
0 answers
30 views

Adjusting carrier and modulation for a clear vocoder sound?

I'm currently trying to put some speech through a vocoder and add a melody. I'm using Reaktor 6 and the vocoder from this collection. I connected an oscillator (and sequencer) to the carrier input and ...
2 votes
1 answer
78 views

VCV Rack - what is the maximum frequency deviation for FM?

On VCO-1, the amount of FM can be controlled by the "FM CV" knob, which ranges from 0%-100%. I'd like to know the frequency deviation that VCV uses at 100% modulation. I did a few tests to try to ...
0 votes
1 answer
41 views

Is it possible to make this kind of voice-modulation setup?

This is largely hypothetical: the answers I receive here will determine whether or not I and the peope involved even move forward with this project. I am part of a group hoping to build a series of ...
2 votes
2 answers
2k views

80s VHS tracking effect

I'd like to grab all of the tracks in a particular project and modulate all of them so that it sounds like they are slowing down slightly and going out of tune. This is the effect that you'd hear back ...
2 votes
1 answer
615 views

Assign modulator LFO to parameter in Logic pro x

I am trying to assign the midi LFO in Logic pro x to the volume in a midi instrument (EXS24). I set the LFO "to" to an empty channel, but when I right-click the volume in my instrument I don't get the ...
12 votes
3 answers
821 views

What is the "level" of Frequency Modulation of many synthesizers?

I am currently working on FM synthesis and while I do understand the roles of carrier frequency, modulator frequency and modulator amplitude, I've been having problems with understanding how lots of ...
1 vote
2 answers
860 views

Bubbly/Wet Sounds with FM synthesis

Here's an example: (wet/bubbly sounds all throughout, particularly in first 10 seconds) I'm wondering if anybody knows any tricks on producing these kinds of sounds, ...
-1 votes
3 answers
106 views

Is there a device that can standardise on volume output from smartphones?

(Apologies if this is a really obvious question, it's all a bit new for me.) Hello all I'm researching ways I can make the sound coming out of the audio jack of a smartphone comparable between ...
0 votes
1 answer
61 views

A filter such that only frequencies present in both signal A and B pass through

Is there a name for what I'm describing? I suppose it could also be viewed as multiplying the amplitudes of matching frequencies from A and B. My goal is similar to a vocoder; I want to shape some ...
2 votes
1 answer
302 views

modulation wheel affects last knob turned in ableton live

Problem: Some software synthesizers should respond to the modwheel but instead ableton live changes the value of the last knob I've turned in a software synthesizer. Background: I use the small ...
1 vote
2 answers
115 views

Need software-based, resonant filter for 90's ROMpler

Any suggestions on how to add a resonant filter to a keyboard that does not have one? I have a Alesis Quadrasynth (QS4) and want to do midi-triggered filter sweeps in real-time. Thank you! Dan
3 votes
1 answer
64 views

Design parameters for combo organs

What are the typical tremelo and vibrato characteristics for electric organs, like the Vox Continetial and Farfisa organs? I'd like some ball park parameter values, i.e. modulation frequencies around ...
3 votes
3 answers
252 views

How to add amount control to amplitude modulation?

I'm trying to implement amount control to amplitude modulation similar to the amount control of frequency modulation. The more amount, the more amplitude variation. The problem is that I can't figure ...
2 votes
1 answer
382 views

Is there a way to use Logic Pro plugins to modulate pitch?

I would like to attach an LFO to one of my tracks and have it modulate pitch/frequency. Is there any way to accomplish this using the factory plug-ins in Logic Pro?
0 votes
2 answers
242 views

Frequency modulation in frequency domain

How would I calculate the amplitudes, phases, and frequencies of the harmonic peaks resulting from frequency modulating (and/or phase modulating) a waveform stored in frequency domain representation? ...
1 vote
1 answer
539 views

Overmodulation?

What is it? How does it happen? How does one avoid it? I dont think I have ever experienced it...or maybe I have but I dont know what it is! :p Go!
0 votes
2 answers
428 views

How to pitch modulate with a delay plugin

How can you modulate the pitch of a clip with a delay plugin? Do you use the feedback?