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Answer: Auto tune. As it pertains to the Power Vision, Auto tune is both a product and a process. There are two different versions that you can use while tuning a bike: Auto tune Basic. Free and requires no additional parts for bikes that have OEM closed loop fuel control and O 2 sensors; Auto tune Pro. In this situation, the AUTOTUNE configuration does not change any of the values. Example 3: Suppose that you removed the automatic tuning configuration parameters from your onconfig file but now want to use them. She exposes her voice bare naked at times, pushes it around a lot, but I’ve never heard her add artificial warbling to it. That’s what auto tune does: it warbles the notes. Featuring the Gregory Brothers! Go subscribe to them: correction: it can make terrible singers sound decent, brilliant sin.

• Does Hozier Use Auto Tune Efx
• Does Hozier Use Auto Tune Free Garageband
• Does Hozier Use Auto Tune Pro
• Does Hozier Use Auto Tune Efx Youtube Video
• Does Hoizer Use Auto Tune

AutoTune attempts to automatically tune the Stabilize P, Rate P and D, and maximum rotational accelerations to provide the highest response without significant overshoot. Copter needs to be “basically” flyable in AltHold mode before attempting to use AutoTune as the feature needs to be able to “twitch” the copter in the roll and pitch axis.

Warning

AutoTune is not always able to determine a good tune for the vehicle and may result in gains that lead to an unflyable vehicle that may crash. Please follow the Tuning Process Instructions before attempting to use AutoTune. After following those instructions, and have evaluated your initial tune, should to try AutoTune.

There a number of problems that can prevent AutoTune from providing a good tune including:

• Strong wind
• High levels of gyro noise
• Non-linear ESC response caused by incorrect value of MOT_THST_EXPO
• Flexible frame or payload mount
• Overly flexible vibration isolation mount
• Very low setting for MOT_SPIN_MIN
• Overloaded propellers or motors

Setup before flying in AutoTune mode¶

1. Set up one flight mode switch position to be AltHold.
2. Set an RC channel Auxiliary Function switch or an Auxiliary Function Switch (prior to version 4.0) to AutoTune to allow you to turn the auto tuning on/off with the a switch.
3. Remove the camera gimbal or any other parts of the frame that could wobble in flight
4. Select which combination of axis (roll, pitch, yaw) you wish to tune using the AUTOTUNE_AXES parameter
5. Set the autotune’s aggressiveness using the AUTOTUNE_AGGR parameter (0.1=agressive, 0.075=medium, 0.050=weak), normally start with the default 0.1.
6. For large copters (with props at least 13inch or 33cm diameter) set the Rate Roll and Pitch filters to 10hz, these are: ATC_RAT_RLL_FLTT , ATC_RAT_RLL_FLTD , ATC_RAT_PIT_FLTT , ATC_RAT_PIT_FLTD , (in Copter-3.4 they are ATC_RAT_RLL_FILT and ATC_RAT_PIT_FILT)
7. It is recommended to enable battery voltage scaling of PID gains

How to invoke AutoTune¶

1. Wait for a calm day and go to a large open area.

2. Ensure the ch7 or ch8 switch is in the LOW position.

3. Take off and put the copter into AltHold mode at a comfortablealtitude.

4. Face the vehicle so that it will twitch at 90degrees from the direction the wind is blowing (i.e. if tuning Roll first, point the vehicle into the wind)

5. Set the ch7/ch8 switch to the HIGH position to engage auto tuning:

   • You will see it twitch about 20 degrees left and right for a fewminutes, then it will repeat forward and back.
   • Use the roll and pitch stick at any time to reposition the copterif it drifts away (it will use the original PID gains duringrepositioning and between tests). When you release the sticks itwill continue auto tuning where it left off.
   • Move the ch7/ch8 switch into the LOW position at any time toabandon the autotuning and return to the origin PIDs.
   • Make sure that you do not have any trim set on your transmitter orthe autotune may not get the signal that the sticks are centered.

6. When the tune completes the copter will change back to the originalPID gains.

7. Put the ch7/ch8 switch into the LOW position then back to the HIGHposition to test the tuned PID gains.

8. Put the ch7/ch8 switch into the LOW position to fly using theoriginal PID gains.

9. If you are happy with the autotuned PID gains, leave the ch7/ch8switch in the HIGH position, land and disarm to save the PIDspermanently.

   If you DO NOT like the new PIDS, switch ch7/ch8 LOW to return to theoriginal PIDs. The gains will not be saved when you disarm.

If you find after performing an AutoTune that the vehicle feels overly twitchy when flying Stabilize, AltHold or PosHold (but ok in moreautonomous modes like Loiter, RTL, Auto) try increasing the ATC_INPUT_TC parameter to 0.25. This smooths out the pilot’s input.Alternatively try reducing the AUTOTUNE_AGGR parameter (it should always be in the range 0.05 to 0.10) and try again.

If the vehicle feels sloppy after the AutoTune, try increasing the AUTOTUNE_AGGR parameter as high as 0.10 and attempt the autotune again.

Invoke AutoTune with Position Hold¶

Warning

A better tune can often be achieved by invoking AutoTune from AltHold as described above instead of from Loiter or PosHold as described below

AutoTune performs a weak position hold if invoked from Loiter or PosHold flight modes (as opposed to AltHold) while doing an autotune.

• The vehicle will gently lean (up to 10 degrees) towards a “target point” which is initially set to the vehicle’s location at the moment AutoTune was invoked.
• The pilot can reposition the vehicle using the roll, pitch, yaw or throttle sticks. The target position will be reset to the vehicle’s location at the moment the pilot releases the roll and pitch sticks.
• In order to twitch perpendicular to the wind direction, the vehicle may suddenly rotate in either direction up to 90 degrees as it drifts 5m (or more) from the target location.
• If there is little or no wind, the vehicle’s gentle position control may mean it moves back and forth, ping ponging around the target point changing yaw each time it strays more than 5m from the target. In these cases it may be more comfortable to revert the simpler AltHold based AutoTune.

If AutoTune fails¶

If AutoTune has failed you will need to do a manual tune.

Some signs that AutoTune has been successful are (besides DataFlash logs and Ground Control Station messages):

• An increase in the values of ATC_ANG_PIT_P and ATC_ANG_RLL_P.
• ATC_RAT_PIT_D and ATC_RAT_RLL_D are larger than AUTOTUNE_MIN_D.

AutoTune will attempt to tune each axis as tight as the aircraft can tolerate. In some aircraft this can be unnecessarily responsive. A guide for most aircraft:

• ATC_ANG_PIT_P should be reduced from 10 to 6
• ATC_ANG_RLL_P should be reduced from 10 to 6
• ATC_ANG_YAW_P should be reduced from 10 to 6
• ATC_RAT_YAW_P should be reduced from 1 to 0.5
• ATC_RAT_YAW_I : ATC_RAT_YAW_P x 0.1

These values should only be changed if AutoTune produces higher values. Small aerobatic aircraft may prefer to keep these values as high as possible.

Additional Notes¶

• In Copter-3.3 (and higher) AutoTune can be setup as a flight-mode. Switching into or out of the AutoTune flight mode responds in the same way as raising or lowering a ch7/ch8 aux switch high assigned the AutoTune function.

• AUTOTUNE_AXES allows control of which axis are to be tuned. This is useful if the vehicle’s battery life is not long enough to complete all 3-axis). “1” = tune roll, “2” = tune pitch, “4” = tune yaw. Add these numbers together to tune multiple axis in a single session (i.e. “7” = tune all axis)

• AUTOTUNE_AGGR : Should be in the range of 0.05 to 0.10. Higher values will produce a more aggressive tune but sometimes results in gains that are too high. More specifically this parameter controls the threshold for D-term bounce back and P-term overshoot. This affects the tuning noise immunity (a higher value is more tolerant to flex in the frame or other disturbances that could trick the tuning algorithm). High values also leads to a tune that rejects external disturbances better. Lower values result in a tune that is more responsive to pilot input.

• The full list of parameters that may be updated by AutoTune

  • Roll angular P gain ATC_ANG_RLL_P
  • Roll rate P, I and D gains ATC_RAT_RLL_P, ATC_RAT_RLL_I, ATC_RAT_RLL_D
  • Roll max acceleration ATC_ACCEL_R_MAX
  • Pitch angular P gain ATC_ANG_PIT_P
  • Pitch rate P, I and D gains ATC_RAT_PIT_P, ATC_RAT_PIT_I, ATC_RAT_PIT_D
  • Pitch max acceleration ATC_ACCEL_P_MAX
  • Yaw angular P gain ATC_ANG_YAW_P
  • Yaw rate P, I gain ATC_RAT_YAW_P, ATC_RAT_YAW_I, ATC_RAT_YAW_D
  • Yaw rate filter ATC_RAT_YAW_FLTT , ATC_RAT_YAW_FLTE (in AC3.6: ATC_RAT_YAW_FLT)
  • Yaw max acceleration ATC_ACCEL_Y_MAX
  • Roll and pitch axis rate feed-forward is enabled (ATC_RATE_FF_ENAB)

• After you have a good tune, you may wish to increase ATC_THR_MIX_MAX to 0.9 (default is 0.5) to increase prioritization of attitude control over throttle. This can reduce the pitch overshoot sometimes seen (especially on copters with large propellers) in AltHold if the vehicle suddenly slows after performing fast forward flight. In this situation wind catches under the propellers providing lift but also disturbs the vehicle’s attitude leading to a conflict between throttle and attitude control. The danger in increasing this parameter’s value is that if the rate gains are later raised so high that the vehicle oscillates badly it may be difficult for the vehicle to descend (because it will prioritize trying to correct the attitude oscillations and never reduce throttle sufficiently).

• AutoTune can request very large and fast changes in outputs to the motors which can cause ESC sync issues especially when using SimonK firmware and/or low KV motors (under 500KV). See this video showing a test which recreates a sync problem.

• For best results the copter shouldn’t be allowed to build up too much horizontal speed. This can be prevented by applying a quick correction between tests (twitches) to stop the vehicle from flying too fast.

• Be advised that AutoTune will engage from Stabilize, so don’t accidentally flip your AutoTune switch until you are in AltHold and ready to begin the procedure.

• As a general rule, for Pitch and Roll, P and I should be equal, and D should be 1/10th P. For Yaw, I should be 1/10th P and D = 0, in most cases.

Common Problems¶

• If the vehicle will not start tuning (i.e. it won’t twitch) even though it is in AutoTune mode then the problem is likely that the roll, pitch, yaw or throttle sticks are not exactly in the middle. It may help to increase the deadzone on the RC input by increasing RC1_DZ, RC2_DZ, RC3_DZ and RC4_DZ to 50 (or higher).
• If the AutoTune produces an overly twitchy vehicle try reducing the AUTOTUNE_AGGR parameter (should never be below 0.05) and perform the AutoTune again.
• If the AutoTune produces a sloppy vehicle, try increasing the AUTOTUNE_AGGR parameter (should never be above 0.1) and perform the AutoTune again.

Tip

When reporting issues with AutoTune please include a description of your frame and a dataflash log of the flight.

Dataflash logging¶

ATUN (auto tune overview) and ATDE (auto tune details) messages arewritten to the dataflash logs. Some details of the contents of thosemessages can be found on the Downloading and Analyzing Data Logs in Mission Planner wiki page.

Ground Control Station Messages¶

For each axis there are several phases to the tune. Rate PIDs are adjusted first, then ANGLE parameters. Progress messages during these phases are sent to the GCS (and recorded in the Dataflash logs).

Typical sequence during tuning might be:

This is during Pitch Rate P adjustment, indicating a twitch is about to happen as the P is being tried at an increased value of 0.052298, but first it is waiting until it gets back to level from the last twitch (WFL= Waiting for level), and then it reports that the result of this twitch is within targets and successful. But this has to occur 4 times in a row, before moving on to the next phase.

Note

During YAW rate phase of tuning, the messages will show a value for “d” that is not ATC_RAT_YAW_D, which is usually 0, but rather it’s the value of ATC_RAT_YAW_FLTE, that is being changed.

Anytime the process is interrupted by pilot stick movements, the

message appears.

If you stopped the tune and dis-armed while still in AUTOTUNE, and an axis tune has completed, you will get a message showing that the new gains have been saved for that axis. If there is not a message to this effect, but think you finished at least one axis, then you probably dis-armed while not in AUTOTUNE mode, and did not actually save them.

Tip

If you do happen to accidentally discard a sessions AUTOTUNE values by disarming when not in AUTOTUNE, you can examine the dataflash log for the GCS messages it sent during tune and manually set them on the bench.

In today’s article, you’re going to see how to build and set up live auto tune for worship.

We’ll be covering:

• Uses and purpose of auto tune in worship

• Gear required for auto tune

• Setting up auto tuning

• Testing the signal flow

Before we jump in, don’t forget to check out and download our Worship Ministry Toolkit. This will provide you with a list of all the gear we talk about so it will help you follow along.

Uses and Purpose of Auto Tune in Worship

We know that auto-tune can be a divisive issue, but here are a couple things to keep in mind:

Auto-tune should never be used to compensate for poor singing

Auto-tune is not, and should not be used to ‘make up’ for wildly incorrect pitches, it is only there to give that extra push if necessary. We’re all for excellence in worship, and we encourage our band to practice and be the best that they can. Auto-tune is just a tech-savvy way of eliminating small mistakes or distractions.

Auto-tune works best with great singers

It can ‘tune’ them up to make dense, difficult harmonies that much better. Not everyone sings perfectly on pitch all the time and auto-tune is able to take those small inconsistencies and correct them in a natural, non-artificial sounding way. A part of gospel-centered worship is crafting the best ministry we can and we believe that auto-tune has a place in that vision.

Gear Required for Auto-Tune

I’m going to give you a brief overview of the gear you’ll need to set up auto-tune. I’ll go more in-depth in the next section, but the Ultimate Guide to Worship Tech 3-pt. Series will be helpful if you don’t already have some of this gear.

Digital Mixing Console

You’ll need a console that is comparable to the Midas X32 or M32. We use the M32R at our church, but you can use your preferred console so long as it can do the following:

• Can connect to computer via USB or Dante

• Has multiple inputs and outputs

• Can send raw audio data to the computer and then receive it back once it’s tuned

Pretty much any modern digital mixing console can do this, but just be aware so you don’t spend money on the wrong gear.
Dante Expansion Card

Now, this is not necessary, but it is extremely helpful for getting your auto-tune up and running. Dante helps you manage your inputs and outputs in a really straightforward way, making it easy for setup. You don’t need to use it, and can do just fine via regular USB connection, but we do think it makes managing your signal flow a lot easier.

Does Hozier Use Auto Tune Efx

Here’s a brief overview of our signal path:

• Signals from the three vocalists come from the sound console via Dante, to Ableton

• Signals get tuned and sent back to the sound console

• The sound console sends those signals and the tuned vocals come out of the PA

By utilizing the Dante network, all our gear can talk to each other and create the flow that you need. We put our auto tuning in Ableton, but on a computer that’s completely separate from our slides, clicks, tracks, etc. Because we have Dante, the computers can talk to each other and the mixing console so that they all work together and keep our signal paths uncluttered.

Auto Tune Plug-Ins

The two most popular tuning plug-ins are Auto-Tune and Waves Tune by Waves. We recommend Waves because it does everything Auto-Tune does but for a fraction of the price. Install the Waves Plug-In into Ableton and you’ll have vocal tuning up in no time.

Setting Up Auto Tuning

Now that we’ve gone through all of the gear, we’ll walk you through how to set up auto-tuning for one vocal mic.

Building in a Safety Net

This step isn’t necessary, but is a good practice just in case anything goes wrong. What we do is create two channels, one for the raw vocals and one for the tuned vocals. This is so if anything goes wrong with Ableton, the sound engineer can easily mute the tuned vocals and turn up the raw signal. Again, it’s not necessary but might be good to keep in mind when building your setup.

So here’s how we set up those channels:

• Raw signal from our stage box goes into our sound console (we also use this for the in-ear monitoring because it’s not good to monitor your tuned sound)

• The second, tuned signal is coming from the back of the board into Ableton where it’s tuned

• It’s then fed back into the console and goes out to the PA system

Routing Overview

Routing the signal to the stage box:

• Mic takes the sound and it goes to the XLR cable and into the stage box

• The stage box then goes to the back of the mixing console

Sending Audio to Ableton

• Since we’re using Dante, we send the signal from the mixing console through the Dante network

• The network picks up the signal and goes into the Dante Sound Card and into Ableton Live

• This gives you the ability to see and modify all of your channels with ease

Sending Signal Back to the Console

• You’ll be able to see the Dante Sound Card plug-in in Ableton

• It will give you access to all of the inputs/outputs, and you can modify which channels you want

• Once you’ve done that in the preferences, the signals will go back through the Dante Network and into the console

Configuring Your Auto Tuning Preferences

Now that you’ve made sure all of your channels and routing are correct, you’re ready to dive into Waves.

• Go into the Ableton Plug-Ins tab and drag Waves down into the screen

• Once it’s open, hit the ‘wrench’ icon to open up your settings

• Now you can modify your pitch correction for your desired effects

Once your in the settings, you can play with everything from the tuning mode to the speed of the note transition. You can set them to anything you want, but we’ve found that the default settings already sound pretty natural. Any further tinkering is all to need or taste.

Does Hozier Use Auto Tune Free Garageband

We’ve kept ours in the chromatic mode, which will correct the pitch to the closest chromatic note. We have competent singers so 99.99% of the time, the tuning corrects a slightly sharp or flat note to the desired pitch.

Testing the Signal Flow

Before you start using auto-tuning in your services, you’ll want to test it first.

Go back into Dante and make sure all of your channels, inputs, and outputs are correct. You should be able to see your inputs match up properly so that they’re all routed into the sound console. If you’ve done two channels like we do, you’ll be able to turn up or down each channel so you can hear the difference between the raw and tuned signal.

Wrap-up

The great thing about this setup is that you can customize it to exactly what you need. Auto-tune can empower even the best musicians sound even just a bit better, helping you to craft a gospel-centered and tech-savvy worship service.

Does Hozier Use Auto Tune Pro

To continue building a great worship ministry, feel free to connect with me and my team at Worship Tech School.

Does Hozier Use Auto Tune Efx Youtube Video

Does Hoizer Use Auto Tune