October 2024: Fractal Audio's VP4 Virtual Pedalboard has been added to the wiki.

Difference between revisions of "Synth block"

From Fractal Audio Wiki
Jump to navigation Jump to search
 
(40 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 
__TOC__
 
__TOC__
=Available on which products=
+
=Synth block=
  
* '''Axe-Fx III''': 2 blocks
+
'''Axe-Fx III''': 2 blocks, 4 channels<BR>
* '''FM9''': 1 block
+
'''FM9''': 1 block, 4 channels<BR>
* '''FM3''': 1 block
+
'''FM3''': 1 block, 4 channels<BR>
* '''Axe-Fx II''': 2 blocks
+
'''VP4''': 2 blocks, 4 channels
* '''AX8''': 1 block
 
* '''FX8''': 1 block
 
  
=Channels or X/Y=
+
'''Axe-Fx II''': 2 blocks, no X/Y<BR>
 +
'''AX8''': 1 block, no X/Y<BR>
 +
'''FX8''': 1 block, no X/Y
  
* '''Axe-Fx III''' and '''FM9''' and '''FM3''': 2 channels
+
=Monophonic input=
* '''Axe-Fx II''': no
 
* '''AX8''': no
 
* '''FX8''': no
 
  
=About the Synth block=
+
The Synth block handles single notes only (monophonic input), which means that you have to play VERY clean and avoid overlapping notes. If you don't, you'll hear ugly <q>chirps</q>.
  
Fractal Audio:
+
<blockquote>
 +
'''FRACTAL AUDIO QUOTES'''
 +
<HR>
  
<blockquote>"The Synth block is a very simple monophonic synth. It doesn't compare to the polyphonic capabilities of something like the FTP and it can't control outboard MIDI synths." [http://forum.fractalaudio.com/threads/fishman-triple-play-axefx-ii.92984/#post-1117064] </blockquote>
+
<blockquote>
 +
[http://forum.fractalaudio.com/threads/fishman-triple-play-axefx-ii.92984/#post-1117064]
 +
The Synth block is a very simple monophonic synth. It doesn't compare to the polyphonic capabilities of something like the FTP and it can't control outboard MIDI synths.
 +
</blockquote>
  
<blockquote>"The lowest note detectable by the Synth block is 47 Hz. It is not intended for use with bass guitar." [https://forum.fractalaudio.com/threads/cant-get-the-synth-block-to-track-a-bass-low-e-12-09.162644/post-1949012]</blockquote>
+
<blockquote>
 +
[https://forum.fractalaudio.com/threads/synth-block-fixes-please.172912/post-2090488]
 +
The chirping is due to the pick attack being interpreted as a high pitch. One approach I've tried is dynamic filtering (i.e. alpha-beta trackers, etc.) for the pitch but that introduces other problems with the pitch sliding between notes. It's a limitation of the technology. Real-time pitch detection is simply limited in what it can do. The best solution is to alter your technique to minimize pick attack.
 +
</blockquote>
 +
</blockquote>
  
The Synth block requires monophonic input. It handles single notes only which means that you have to play REALLY clean and avoid overlapping notes. If you don't, you'll hear ugly "chirps".
+
[[image:Synth diagram.png|300px]]
 
 
<blockquote>"The chirping is due to the pick attack being interpreted as a high pitch. One approach I've tried is dynamic filtering (i.e. alpha-beta trackers, etc.) for the pitch but that introduces other problems with the pitch sliding between notes. It's a limitation of the technology. Real-time pitch detection is simply limited in what it can do. The best solution is to alter your technique to minimize pick attack." [https://forum.fractalaudio.com/threads/synth-block-fixes-please.172912/post-2090488]</blockquote>
 
 
 
[http://en.wikipedia.org/wiki/Synthesizer Read more about synthesizers in Wikipedia]
 
 
 
=Synth block diagram=
 
 
 
[[image:Synth diagram.png|250px]]
 
  
 
=Tips, tricks and troubleshooting=
 
=Tips, tricks and troubleshooting=
Line 38: Line 36:
 
==Factory presets==
 
==Factory presets==
  
The Synth block is showcased in a few factory presets. Search the [[Factory presets]] page for "synth".
+
The Synth block is showcased in a few factory presets. Search the [[Factory presets]] page for <q>synth</q>.
  
 
Forum members such as Simeon, Swedish Chef, and Admin M@ have created synth presets. Search the forum or visit [http://axechange.fractalaudio.com Axe-Change].
 
Forum members such as Simeon, Swedish Chef, and Admin M@ have created synth presets. Search the forum or visit [http://axechange.fractalaudio.com Axe-Change].
  
==Global blocks==
+
==No Global blocks==
  
 
The Synth block doesn't support [[Global blocks]].
 
The Synth block doesn't support [[Global blocks]].
  
==Lowering CPU usage==
+
==Lower CPU usage==
  
The Synth has 3 voices. Turn off voices that you don't use to save CPU.
+
The Synth has three voices. Turn off voices that you don't use to save CPU.
  
 
==Frequencies versus notes==
 
==Frequencies versus notes==
  
The synth uses [https://pages.mtu.edu/~suits/notefreqs.html frequencies (Hz)] instead of musical notes. Handy workaround: set the frequency to 440Hz and use the Shift control to alter the notes.
+
The synth uses frequencies in Hz instead of musical notes. A handy workaround is to set the frequency to 440Hz and use the Shift control to alter the notes.
  
==Warming up the Synth sound==
+
See the <q>Sound On Sound</q> chart at the bottom of the [[EQ|EQ page]] for a handy note to frequency reference.
  
To warm up / soften the sound of the synth, add a Drive block before or after it (try the RAT model).
+
==Warm up the Synth==
  
==Fattening the Synth sound==
+
To warm up / soften the sound of the synth, add a Drive block before or after it. Try the RAT model.
 +
 
 +
==Fatter Synth==
  
 
To fatten the Synth, use at least two voices and detune them slightly. [http://forum.fractalaudio.com/threads/the-synth-block.109523/#post-1310172]
 
To fatten the Synth, use at least two voices and detune them slightly. [http://forum.fractalaudio.com/threads/the-synth-block.109523/#post-1310172]
  
 
==Drone note(s)==
 
==Drone note(s)==
 +
 +
To create a drone note:
  
 
# Turn off Voices 2 and 3.
 
# Turn off Voices 2 and 3.
Line 72: Line 74:
 
* Make the sound less boring by adding a low-pass Filter with LFO-controlled Frequency.
 
* Make the sound less boring by adding a low-pass Filter with LFO-controlled Frequency.
 
* Make the sound wider by adding a 100% wet Multi-Delay or Plex Delay set to Detune.
 
* Make the sound wider by adding a 100% wet Multi-Delay or Plex Delay set to Detune.
* Change the pitch of the drone note, by switching the Synth between channels or by using [[Scene controllers]], attached to the Pitch or Shift parameter of the voice(s). Or just send the Synth into a Pitch block (changes the pitch of all voices).
+
* Change the pitch of the drone note, by switching the Synth between channels or by using Scene Controllers, attached to the Pitch or Shift parameter of the voice(s). Or just send the Synth into a Pitch block (changes the pitch of all voices).
 
* Use the Sequencer controller to have the Synth block play lines.
 
* Use the Sequencer controller to have the Synth block play lines.
  
Try this factory preset: [[Factory presets|FREMEN'S DRONE]]
+
Try this factory preset: [[Factory presets|FREMEN'S DRONE]].
  
 
==Pink or white noise==
 
==Pink or white noise==
Line 81: Line 83:
 
The Synth block can generate [http://en.wikipedia.org/wiki/White_noise white noise] and [http://en.wikipedia.org/wiki/Pink_noise pink noise].
 
The Synth block can generate [http://en.wikipedia.org/wiki/White_noise white noise] and [http://en.wikipedia.org/wiki/Pink_noise pink noise].
  
==Siren sound==
+
==Siren==
  
Select a Square waveform and attach an LFO to the FREQ parameter of a single voice. Add a lot of reverb.
+
To create a siren, select a Square waveform and attach an LFO to the FREQ parameter of a single voice. Add a lot of reverb.
  
 
==Test tone==
 
==Test tone==
Line 94: Line 96:
 
==Calibration tone==
 
==Calibration tone==
  
<blockquote>"Set the synth block to a 1K sine wave at -12 dB. Turn OUTPUT 1 to the maximum level position." [http://forum.fractalaudio.com/threads/calibration-tone.109698/#post-1312732] </blockquote>
+
<blockquote>
 +
'''FRACTAL AUDIO QUOTES'''
 +
<HR>
 +
 
 +
<blockquote>
 +
[http://forum.fractalaudio.com/threads/calibration-tone.109698/#post-1312732]
 +
Set the synth block to a 1K sine wave at -12 dB. Turn OUTPUT 1 to the maximum level position.
 +
</blockquote>
  
<blockquote>"There's actually a hidden calibration tone that is used during functional test. The Synth block is reference quality. I use it all the time to generate test tones. The output is spectrally purer than my $2000 Stanford Research Systems Synthesized Function Generator." [http://forum.fractalaudio.com/threads/calibration-tone.109698/#post-1312815] </blockquote>
+
<blockquote>
 +
[http://forum.fractalaudio.com/threads/calibration-tone.109698/#post-1312815]
 +
There's actually a hidden calibration tone that is used during functional test. The Synth block is reference quality. I use it all the time to generate test tones. The output is spectrally purer than my $2000 Stanford Research Systems Synthesized Function Generator.
 +
</blockquote>
  
<blockquote>"The Synth block is measurably better than our Stanford Research Systems generator (which cost $2000)." [https://forum.fractalaudio.com/threads/fixed-strange-thing-going-on-with-af3.161697/post-1939099]</blockquote>
+
<blockquote>
 +
[https://forum.fractalaudio.com/threads/fixed-strange-thing-going-on-with-af3.161697/post-1939099]
 +
The Synth block is measurably better than our Stanford Research Systems generator (which cost $2000).
 +
</blockquote>
 +
</blockquote>
  
 
==Metronome==
 
==Metronome==
  
Read this: [[Metronome]]
+
Read <q>[[Metronome]]</q> for more information about using the Synth to create a metronome.
  
 
=Videos=
 
=Videos=
Line 115: Line 131:
 
[[category:FM3]]
 
[[category:FM3]]
 
[[category:FM9]]
 
[[category:FM9]]
 +
[[category:VP4]]
 
[[category:Axe-Fx3]]
 
[[category:Axe-Fx3]]
 
[[category:AX8]]
 
[[category:AX8]]

Latest revision as of 14:41, 8 November 2024

Synth block

Axe-Fx III: 2 blocks, 4 channels
FM9: 1 block, 4 channels
FM3: 1 block, 4 channels
VP4: 2 blocks, 4 channels

Axe-Fx II: 2 blocks, no X/Y
AX8: 1 block, no X/Y
FX8: 1 block, no X/Y

Monophonic input

The Synth block handles single notes only (monophonic input), which means that you have to play VERY clean and avoid overlapping notes. If you don't, you'll hear ugly chirps.

FRACTAL AUDIO QUOTES


[1] The Synth block is a very simple monophonic synth. It doesn't compare to the polyphonic capabilities of something like the FTP and it can't control outboard MIDI synths.

[2] The chirping is due to the pick attack being interpreted as a high pitch. One approach I've tried is dynamic filtering (i.e. alpha-beta trackers, etc.) for the pitch but that introduces other problems with the pitch sliding between notes. It's a limitation of the technology. Real-time pitch detection is simply limited in what it can do. The best solution is to alter your technique to minimize pick attack.

Synth diagram.png

Tips, tricks and troubleshooting

Factory presets

The Synth block is showcased in a few factory presets. Search the Factory presets page for synth.

Forum members such as Simeon, Swedish Chef, and Admin M@ have created synth presets. Search the forum or visit Axe-Change.

No Global blocks

The Synth block doesn't support Global blocks.

Lower CPU usage

The Synth has three voices. Turn off voices that you don't use to save CPU.

Frequencies versus notes

The synth uses frequencies in Hz instead of musical notes. A handy workaround is to set the frequency to 440Hz and use the Shift control to alter the notes.

See the Sound On Sound chart at the bottom of the EQ page for a handy note to frequency reference.

Warm up the Synth

To warm up / soften the sound of the synth, add a Drive block before or after it. Try the RAT model.

Fatter Synth

To fatten the Synth, use at least two voices and detune them slightly. [3]

Drone note(s)

To create a drone note:

  1. Turn off Voices 2 and 3.
  2. Switch off Tracking for Voice 1 and adjust pitch with the Frequency parameter.

Tips:

  • Try the Sawtooth waveform.
  • Make the sound fatter by using two Synth voices set to the same frequency.
  • Make the sound less boring by adding a low-pass Filter with LFO-controlled Frequency.
  • Make the sound wider by adding a 100% wet Multi-Delay or Plex Delay set to Detune.
  • Change the pitch of the drone note, by switching the Synth between channels or by using Scene Controllers, attached to the Pitch or Shift parameter of the voice(s). Or just send the Synth into a Pitch block (changes the pitch of all voices).
  • Use the Sequencer controller to have the Synth block play lines.

Try this factory preset: FREMEN'S DRONE.

Pink or white noise

The Synth block can generate white noise and pink noise.

Siren

To create a siren, select a Square waveform and attach an LFO to the FREQ parameter of a single voice. Add a lot of reverb.

Test tone

If you want to make sure that the hardware is capable of generating sound, create a simple test tone:

  1. Add a Synth block and connect it to the grid output.
  2. Select the Sine waveform and turn off Tracking.

Calibration tone

FRACTAL AUDIO QUOTES


[4] Set the synth block to a 1K sine wave at -12 dB. Turn OUTPUT 1 to the maximum level position.

[5] There's actually a hidden calibration tone that is used during functional test. The Synth block is reference quality. I use it all the time to generate test tones. The output is spectrally purer than my $2000 Stanford Research Systems Synthesized Function Generator.

[6] The Synth block is measurably better than our Stanford Research Systems generator (which cost $2000).

Metronome

Read Metronome for more information about using the Synth to create a metronome.

Videos