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Difference between revisions of "Realtime Analyzer block"

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__TOC__
 
__TOC__
  
[[image:RTA.png|125px]]
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[[image:RTA.png|150px]]
  
=Available on which Fractal Audio products=
+
=Available on which products=
* '''Axe-Fx III''': 1x.
 
* '''Axe-Fx II''': no.
 
* '''AX8''': no.
 
* '''FX8''': no.
 
  
=X/Y and channels=
+
* '''Axe-Fx III''': 1 block
* '''Axe-Fx II''': no.
+
* '''FM3''': no
* '''Axe-Fx II''': n/a.
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* '''Axe-Fx II''': no
* '''AX8''': n/a.
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* '''AX8''': no
* '''FX8''': n/a.
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* '''FX8''': no
  
=About RTA=
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=Channels or X/Y switching=
  
The RTS provides detailed visual feedback of the audio spectrum.
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* '''Axe-Fx III''' and '''FM3''': no
  
One of its uses is detecting frequencies where undesired feedback occurs. You can then use a PEQ to cut those frequencies.
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=Purposes=
  
=Connecting the RTA=
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==Watch audio spectrum==
  
The RTA block requires an input signal and doesn't send a signal out, so its output doesn't need to be connected.
+
The RTA provides detailed visual feedback of the audio spectrum. To view the display, scroll to the RTA block and press Edit. It makes for a great dynamic display during performances.
  
=Viewing the RTA=
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[[image:rta.jpg|300px]]
  
Scroll to the RTA block and press Edit to view the meters.
+
 
 +
==Fight feedback==
 +
 
 +
The RTA can point out frequencies where undesired feedback occurs. Turn the Value knob to select the desired band, and the frequency of the selected band will be displayed in the upper left corner. You can then use a PEQ to cut frequencies.
 +
 
 +
<blockquote>“Use it to identify problem frequencies or as a spiffy screen saver.” [https://forum.fractalaudio.com/threads/correct-use-of-the-rta-block.141830/#post-1680183 source] </blockquote>
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 +
==Test hardware I/O==
 +
 
 +
The RTA can be used to test the hardware I/O. For example, to test the Instrument input: ([http://forum.fractalaudio.com/threads/output-level.136991/page-3#post-1629752 source])
 +
 
 +
# Go to a blank preset
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# Create a chain that connects Input 1 to the RTA block. On a separate row create a chain where the Synth block feeds Output 3
 +
# Set the Synth Type = Sine, Tracking = Off, Frequency = 1000 Hz
 +
# Connect an instrument cable from Output 3 (left or right) to the Instrument Input
 +
# Set the Input 1 / Instrument A/D Input Level (Home->Setup->I/O) to 50%
 +
# Turn the Out 3 Level knob all the way up
 +
# The Input 1 yellow LED should be lit. Red should not be lit. Go to the RTA block Config tab. Set Bands to 128, Window to Blackman. Go to the RTA tab. There should be a narrow spike at 1 kHz (three bands). There should be no other bands showing power except maybe a little noise at the highest bands. The spike at 1 kHz should be about 2 1/4 divisions below full-scale
 +
 
 +
==Measure devices==
 +
 
 +
The RTA can be used to measure the output of other equipment, in conjunction with the [[Synth block]]. For example, to measure the frequency response of an external EQ or distortion pedal, set the Synth block to Pink Noise, send the Synth's signal through the pedal and back again, and use the RTA to measure and see the response.
 +
 
 +
=Position of the RTA on the grid=
 +
 
 +
The RTA block requires an input signal only and doesn't transmit any signal, so its output doesn't need to be connected.
 +
 
 +
=Parameters=
  
 
=Parameters table=
 
=Parameters table=
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|-
 
|-
 
! '''Parameter'''
 
! '''Parameter'''
! '''Axe-Fx III'''
+
! '''Axe-Fx III / FM3'''
! '''Axe-Fx II'''
 
! '''AX8, FX8'''
 
 
|-
 
|-
 
| Decay Time
 
| Decay Time
 
! yes
 
! yes
! n/a
 
! n/a
 
 
|-
 
|-
 
| Input Select
 
| Input Select
 
! yes
 
! yes
! n/a
 
! n/a
 
 
|-
 
|-
 
| Bands
 
| Bands
 
! yes
 
! yes
! n/a
 
! n/a
 
 
|-
 
|-
 
| Window Type
 
| Window Type
 
! yes
 
! yes
! n/a
 
! n/a
 
 
|}
 
|}
  
 
[[category:Axe-Fx3]]
 
[[category:Axe-Fx3]]
 
[[category:Sounds]]
 
[[category:Sounds]]

Revision as of 02:41, 16 February 2020

RTA.png

Available on which products

  • Axe-Fx III: 1 block
  • FM3: no
  • Axe-Fx II: no
  • AX8: no
  • FX8: no

Channels or X/Y switching

  • Axe-Fx III and FM3: no

Purposes

Watch audio spectrum

The RTA provides detailed visual feedback of the audio spectrum. To view the display, scroll to the RTA block and press Edit. It makes for a great dynamic display during performances.

Rta.jpg


Fight feedback

The RTA can point out frequencies where undesired feedback occurs. Turn the Value knob to select the desired band, and the frequency of the selected band will be displayed in the upper left corner. You can then use a PEQ to cut frequencies.

“Use it to identify problem frequencies or as a spiffy screen saver.” source

Test hardware I/O

The RTA can be used to test the hardware I/O. For example, to test the Instrument input: (source)

  1. Go to a blank preset
  2. Create a chain that connects Input 1 to the RTA block. On a separate row create a chain where the Synth block feeds Output 3
  3. Set the Synth Type = Sine, Tracking = Off, Frequency = 1000 Hz
  4. Connect an instrument cable from Output 3 (left or right) to the Instrument Input
  5. Set the Input 1 / Instrument A/D Input Level (Home->Setup->I/O) to 50%
  6. Turn the Out 3 Level knob all the way up
  7. The Input 1 yellow LED should be lit. Red should not be lit. Go to the RTA block Config tab. Set Bands to 128, Window to Blackman. Go to the RTA tab. There should be a narrow spike at 1 kHz (three bands). There should be no other bands showing power except maybe a little noise at the highest bands. The spike at 1 kHz should be about 2 1/4 divisions below full-scale

Measure devices

The RTA can be used to measure the output of other equipment, in conjunction with the Synth block. For example, to measure the frequency response of an external EQ or distortion pedal, set the Synth block to Pink Noise, send the Synth's signal through the pedal and back again, and use the RTA to measure and see the response.

Position of the RTA on the grid

The RTA block requires an input signal only and doesn't transmit any signal, so its output doesn't need to be connected.

Parameters

Parameters table

Parameter Axe-Fx III / FM3
Decay Time yes
Input Select yes
Bands yes
Window Type yes