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Virtual Instruments in Logic Pro

Getting more intelligible results with U/V detection


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Virtual Instruments in Logic Pro

with Brian Trifon

Video: Getting more intelligible results with U/V detection

One way to increase the intelligibility of vocoded sounds is to use the UV detection aspect of the EVOC 20. UV detection stands for unvoiced detection. So human speech consists of voice sounds, which are tonal sounds or formants, and unvoiced sounds, which are more noisy. So voice sounds are typically produced from oscillations of the vocal cords, whereas unvoiced sounds are produced by blocking or restricting airflow via either your lips, tongue, palate, throat, or larynx. So in most good vocoders we will have two different ways of synthesizing voice sounds and unvoiced sounds.
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  1. 6m 59s
    1. Welcome
      2m 21s
    2. Setting up Logic Pro for using virtual instruments and configuring MIDI controllers
      4m 5s
    3. Using the exercise files
      33s
  2. 21m 50s
    1. Getting started with the ES M
      1m 13s
    2. Understanding the signal flow of the ES M
      2m 18s
    3. Using the oscillator
      3m 4s
    4. Tone shaping with the lowpass filter
      2m 59s
    5. Using the volume controls
      3m 5s
    6. Using the Filter envelope to adjust cutoff
      3m 22s
    7. Composing with the ES M
      5m 49s
  3. 26m 16s
    1. Getting started with the ES E
      1m 15s
    2. Understanding the signal flow of the ES E
      2m 5s
    3. Selecting a waveform
      2m 9s
    4. Using the Vibrato/PWM dial
      2m 15s
    5. Using the ES E lowpass filter
      2m 43s
    6. Shaping the amplitude with the Attack and Release envelope
      3m 10s
    7. Shaping the filter with the Attack and Release envelope
      3m 55s
    8. Using the Chorus and Ensemble settings
      2m 1s
    9. Composing with the ES E
      6m 43s
  4. 39m 0s
    1. Getting started with the ES P
      1m 54s
    2. Understanding the signal flow of the ES P
      2m 22s
    3. Balancing the oscillator levels
      4m 7s
    4. Enabling key follow on the filter
      6m 9s
    5. Shaping the volume with the ADSR
      6m 20s
    6. Modulating the cutoff with the ADSR
      3m 48s
    7. Using the Vibrato/Wah control
      3m 23s
    8. Tweaking the Overdrive and Chorus settings
      2m 34s
    9. Composing with the ES P
      8m 23s
  5. 1h 19m
    1. Getting started with the ES1
      2m 8s
    2. Exploring the signal flow of the ES1
      3m 31s
    3. Using the oscillator and sub-oscillator
      3m 58s
    4. Tweaking the filter
      6m 36s
    5. Using key follow on the cutoff
      5m 25s
    6. Exploring the amplifier section and ADSR
      7m 42s
    7. Modulating the cutoff with ADSR
      4m 9s
    8. Creating movement with the LFO
      14m 18s
    9. Using the Modulation envelope to add contour
      13m 31s
    10. Using the Glide and the Global Voices settings
      4m 30s
    11. Using the side chain input and LFO external feature
      4m 34s
    12. Composing with the ES1
      9m 20s
  6. 48m 8s
    1. Getting started with EFM1
      1m 51s
    2. FM synthesis basics and signal flow
      3m 21s
    3. Setting the carrier pitch
      2m 56s
    4. Changing timbre with the modulator
      6m 2s
    5. Using the volume and modulation envelope to shape the sound
      9m 55s
    6. Adding movement with the LFO
      2m 59s
    7. Using unison, detune and sub osc for thick sounds
      3m 22s
    8. Randomize, do you feel lucky today?
      3m 47s
    9. Assigning MIDI controls to FM
      3m 38s
    10. Composing with the EFM1
      10m 17s
  7. 46m 4s
    1. Getting Started with EVOC 20
      2m 9s
    2. Vocoding Basics: Making your synth sing!
      3m 14s
    3. Exploring the synthesis section
      4m 47s
    4. Managing the Global voice settings
      4m 39s
    5. Using the filterbank section to shape the vocoded sounds
      5m 34s
    6. Tweaking the formants and adding movement with the LFO's
      5m 26s
    7. Getting more intelligible results with U/V detection
      3m 52s
    8. Making your beats melodic: vocoding drums
      3m 38s
    9. Composing with the EVOC 20
      12m 45s
  8. 1h 28m
    1. Getting Started with ES2
      3m 33s
    2. Exploring the ES2 Oscillators and Mix Triangle
      9m 7s
    3. Tweaking the ES2 filters to shape expressive sounds
      7m 11s
    4. Series or Parallel?
      6m 34s
    5. Understanding the amplifier effects
      3m 45s
    6. Bringing life to ES2 with the modulation router
      4m 50s
    7. Creating rhythmic movement with the LFO's
      10m 8s
    8. Using the 3 envelopes to give shape to your sounds
      8m 13s
    9. Create evolving sounds with basic vector modulation
      5m 37s
    10. Looping with the vector envelope
      8m 17s
    11. Voice parameters and global settings
      7m 15s
    12. Making changes to your macro and MIDI controls
      3m 29s
    13. Composing with the ES2
      10m 26s
  9. 1h 15m
    1. Getting Started with EXS24
      3m 29s
    2. Create your own sample instruments the easy way
      5m 4s
    3. Exploring single zone sample instruments
      4m 29s
    4. Creating multiple zone instruments
      5m 9s
    5. Adding dynamics with velocity layers
      5m 46s
    6. Organizing zones with groups
      7m 4s
    7. Advanced zone editing and looping
      5m 21s
    8. Using the filter section to shape your sampled sounds
      7m 3s
    9. Using transpose and glide to add expression to EXS24
      5m 22s
    10. Adding life and expression with the modulation
      7m 33s
    11. Further shaping with the envelopes
      6m 35s
    12. Adjusting Global voice settings
      3m 14s
    13. Composing with the EXS24
      9m 5s
  10. 59m 45s
    1. Getting started with EVB3
      3m 59s
    2. Synthesizing with the Drawbars
      3m 10s
    3. Utilizing the Preset Keys and Morph Wheel
      4m 31s
    4. Adding Vibrato and Percussion Parameters
      4m 43s
    5. Customizing the Pitch and Condition Parameters
      7m 0s
    6. Adjusting the Organ and Sustain Parameters
      6m 6s
    7. Using the EVB3 effects
      5m 43s
    8. Modulating sound with the Leslie Rotor Cabinet
      7m 49s
    9. Setting the extended parameters
      5m 17s
    10. Composing with the EVB3
      11m 27s
  11. 19m 52s
    1. Getting Started with EVP88
      2m 46s
    2. Selecting a piano model
      1m 17s
    3. Adjusting the model parameters
      2m 38s
    4. Setting the tuning parameters
      1m 54s
    5. Adding effects to thicken the sound
      4m 40s
    6. Musical example
      6m 37s
  12. 29m 15s
    1. Getting Started with EVD6
      2m 29s
    2. Choosing the instrument model
      3m 41s
    3. Customizing the string parameters
      4m 25s
    4. Adjusting pickup configuration and position
      3m 49s
    5. Using the EVD6 Effects
      5m 24s
    6. Composing with the EVD6
      9m 27s
  13. 1h 57m
    1. Getting Started with Sculpture
      4m 53s
    2. Setting the string characteristics with the Material Pad
      8m 26s
    3. Exciting the string with objects
      8m 52s
    4. Adjusting the Pickups and Global Voice Settings
      8m 10s
    5. Shaping sound with the Amp Envelope
      4m 24s
    6. Saturating sound with the Wave Shaper
      3m 42s
    7. Sculpting with the filter
      7m 37s
    8. Adding depth to the stereo delay
      5m 18s
    9. Understanding the Body EQ
      6m 34s
    10. Modulating with the LFO's
      8m 9s
    11. Using the Vibrato, Velocity and Controllers
      6m 40s
    12. Introducing the Control Envelope
      6m 15s
    13. Recording the Envelope Shape with a MIDI Controller
      5m 57s
    14. Looping with the Control Envelopes
      5m 46s
    15. Transitioning between settings the Morph Pad
      6m 10s
    16. Employing the Morph Envelope
      9m 48s
    17. Composing with Sculpture
      10m 52s
  14. 2h 4m
    1. Getting started with Ultrabeat
      2m 54s
    2. Exploring the Assignment section
      6m 22s
    3. Importing settings into Ultrabeat
      4m 19s
    4. Synthesizing with Oscillator 2
      7m 42s
    5. Using Oscillator 1 and the noise generator
      4m 36s
    6. Shaping with the envelopes
      7m 21s
    7. Filtering and setting distortion
      8m 36s
    8. Adding movement with the LFOs
      8m 23s
    9. Refining the sound with EQ in the Output section
      6m 10s
    10. Building a kick drum
      8m 18s
    11. Synthesizing a snare drum
      8m 31s
    12. Creating a hi-hat
      4m 34s
    13. Introduction to the step sequencer
      5m 54s
    14. Sequencing in the step sequencer
      7m 18s
    15. Working with the playback options
      5m 1s
    16. Sequencing automation in Step Edit mode
      5m 3s
    17. Utilizing the side chain
      9m 2s
    18. Composing with Ultrabeat
      14m 13s
  15. 7m 24s
    1. Introducing and composing with the Klopfgeist
      7m 24s
  16. 1m 12s
    1. What's next?
      1m 12s

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Virtual Instruments in Logic Pro
13h 10m Intermediate Nov 09, 2011 Updated Mar 14, 2012

Viewers: in countries Watching now:

Join author Brian Trifon as he shows how to improve music and audio productions using virtual instruments in Logic Pro. This course tours the program's virtual instruments, including the ES2 hybrid synthesizer, Sculpture physical modeling synthesizer, EFM1 FM synthesizer, the EVOC 20 vocoder, the Ultrabeat drum synthesizer, and the EXS24 sampler, and shows how to achieve various effects with each instrument's parameters. The course also covers working with oscillators and filters, understanding signal flow, creating custom synthesizer patches, adding effects, synthesizing speech, creating a library of custom sound samples, and much more.

Virtual Instruments with Logic Pro will be updating on a monthly basis, eventually covering all the virtual instruments in the application. Look for the latest movies here and on the lynda.com blog.

Topics include:
  • Setting up Logic Pro for using virtual instruments
  • Configuring MIDI controllers
  • Composing with virtual instruments envelopes
  • Tweaking the overdrive and chorus
  • Creating movement with LFOs (Low Frequency Oscillators)
  • Understanding FM synthesis basics
  • Changing the timbre and shifting the formants of the vocoder
  • Constructing custom sampler kits
  • Exploring the tonewheel organ, electric piano, and Ultrabeat drum synthesizer
Subjects:
Audio + Music Audio Plug-Ins Virtual Instruments
Software:
Logic Pro
Author:
Brian Trifon

Getting more intelligible results with U/V detection

One way to increase the intelligibility of vocoded sounds is to use the UV detection aspect of the EVOC 20. UV detection stands for unvoiced detection. So human speech consists of voice sounds, which are tonal sounds or formants, and unvoiced sounds, which are more noisy. So voice sounds are typically produced from oscillations of the vocal cords, whereas unvoiced sounds are produced by blocking or restricting airflow via either your lips, tongue, palate, throat, or larynx. So in most good vocoders we will have two different ways of synthesizing voice sounds and unvoiced sounds.

So that's why I have got this whole UV detection aspect right here. So let's run some audio through here. We have got that same good old Nothing to Say audio your track. And I have got that routed through the Side Chain input, like you have seen before. And then to make sure that we are monitoring this properly, I want to make sure I have got to set the vocoder so that I can hear the vocoded signal. Okay, so if ahead and hit play and I'll play notes on the keyboard, (music playing) so we have got the vocoded sound.

So I can increase intelligibility in the first place by just upping the number of band pass filters. Okay, there we go. So now to recreate the unvoiced sounds, I am going to turn on this Noise mode in this UV detection area. So what it will do is synthesize the unvoiced sounds with just noise. And it's a whole separate noise generator than the noise oscillators that's in our Synthesis section. So let's hear that. So you can hear the S is much more clear. I can adjust the Sensitivity, like if I was getting too much noise, I can bring it down, or if that wasn't enough, I could increase it, and then I could adjust the volume and the level of it.

So now that S is really pronounced. It sticks out probably too much. So the next mode we have got in here is Noise+Synth so this will be the noise plus the synthesis engine together. So that sounds good. It's pretty similar to the previous one. A lot of it depends on your source material. So if we had a different voice sample that was going through, it might react differently. So you kind of have to adjust the sensitivity and level and such accordingly.

The last mode that's in here is Blend mode, and what this will do is it will mix in a high-pass filtered version of our voice in with the vocoded signal. So let's listen to that. So you can hear, we've got the dry signal in there, but has no low frequencies in it. So I can adjust the level of that. When I am in Blend mode Sensitivity control doesn't do anything. It's not affecting anything, so I can just leave it where it is. And once I have got that all set and I have got a vocoded sound, the sound is pretty accurate, one thing I might want to do is add a chorus effect to make this more lush.

So fortunately, in our Amplifier section here, there is two different types of chorus. We have got Ensemble 1, and then we have got Ensemble 2, which had a little bit more modulation. So that's pretty cool, and then down here, too, we can also control the stereo width of the vocoded sound. All right, so I can make it more narrow, so it's focused in the center, or I can turn this all the way to the right and we have sort of an exaggerated stereo image of our sweet vocoded sound.

So as you can see, the unvoiced detection really helps intelligibility and then you can widen things up in this Amplifier section with the chorus and stereo width. So, so far we have covered most of the typical uses of a vocoder and how that works in synthesizing voices, so in the next video let's explore some creative sources that we can vocode and what that sounds like.

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