There are two main causes for double triggers: The first is related to playing style and the way the instrument reacts to user input – we call these ‘soft’ DT’s. The second is related to mechanical and electrical issues that could be interfering with the performance – we call these ‘hard’ DT’s.
This technical document requires an understanding of the use of the PC Control Panel or the YRG SubMenu system. For instructions on using these features see the accompanying technical notes.
The first step is to identify the cause. Soft DT’s are simply due to the default settings of the instrument. The YRG is intended to be configured for most people, but you may not be “most people,” and so it probably needs a little tweaking. Soft issues can usually be fixed by adjusting the firmware parameters.
Hard DT’s can also be due to default settings, but usually are corrected through hardware adjustments on the guitar.
So lets figure out what’s causing your problems.:
Note that when I refer to string I am referring to the metal strings that are plucked with a finger or pick in your right hand (if you’re right handed). When I refer to fingerboard string I am referring to the simulated strings that you press on with your left hand.
A. Is it happening when you first strike a string when the fingerboard hand is stationary?
B. Does it double trigger occur when you touch the string with your pick?
C. Is it happening while you are playing during the transitions from note to note usually when hammering on the same fingerboard string?
D. Does it only double trigger when you are playing fast lead lines (not in TAP mode).
So as you’ve probably figured out, A & B are hard issues and C & D are soft issues.
Fixing Soft DT’s
There are a lot of parameters available for this adjustment, so lets narrow this down a little further.
1. Tap Mode Enabled by Mistake
If TAP mode is enabled and you are picking notes as well, this will guarantee that you get the DT’s. When you put your hand on the fingerboard string the note will trigger, then if you pick the string, it will trigger again. Turn TAP off to see if this fixes your problem.
2. Hammered on notes occur before picked note
Soft DT’s are often due to the way we play and how the computer in the YRG has to figure out what we are doing. A common issue is hammering before picking – we all do it. For example if you play the A on the hiE string with your first finger and then hammer on to the B with your 3rd finger the B will sound. But what if you want to pick the B. It is natural to finger the B on the fingerboard string before you pluck the string. Heres how to tell if this is causing your aggravation: DIsable hammer on’s and see if the problem goes away. (SubMenu 5 – Global Settings, HE).
If the problem went away (and you probably want to still use hammer on’s) we have to re-enable hammer on’s and then modify these trigger parameters.
Here are the parameters that can help these soft DT’s:
HP Hammer Pre-Delay
This parameter allows you to set a slight delay between when a note is hammered on and when the note actually sounds. The higher the setting (0-40) the longer the delay before the note sounds.
Hb Hammer Blanking
Sets a short time window after a hammer on a during which new plucks are rejected. The higher the setting (0-40) the longer the blanking period.
The default factory settings as of V1.577 are:
HP Hammer Pre-Delay 3
Hb Hammer Blanking 15
You can start by increasing Hammer Blanking. From experience, when you get to a value of 25, you may start to feel the delay when you repeat the same note very rapidly. A large amount of hammer blanking should cure soft DT’s completely.
With Hammer Blanking increased, the system will tend to use the hammered note, rather than the picked note which will give a really fast response to your playing. Sometimes it may feel too fast, because you are used to hearing the note when you pluck, so it can be useful to add a little Hammer Pre-Delay, the default of 3 is small, you can increase it to allow you more time to put your finger down before picking. If you increase it too much you will feel that hammer on’s and trills are affected.
Fixing hard DT’s
3. Amplitude Envelope Double Trigger
Even though the strings on the YRG are very short and have limited energy and are intended as triggers, they still are mechanical devices and they do vibrate for a short while. It is possible that under certain conditions there could be a variation in the envelope that looks to the system like a re-trigger.
4. Pick Inertia Double Trigger
Some playing styles rest the pick against the string, or if you transition through the string very slowly with the pick, the system may see the pick touching the string as a trigger and then when the pick moves through the string and releases it, it could see this as a second trigger.
Here are the parameters that you can use to adjust for Hard DT’s
tb Trigger Blanking
Sets a short time window after a plucked note during which new plucks are rejected. The higher the setting (0-40) the longer the blanking period.
SG String Gain
String Gain allows the gain of each string to be adjusted separately
The default factory settings as of V1.577 are:
tb Trigger Blanking 8
SG String Gain 5, 5, 5, 5, 5, 5 (each string)
YRG-1000 <Gen2> has a much more sensitive pickup system than Gen1’s, so in many cases on Gen2’s you can reduce the String Gain. This is much easier done on the PC Control Panel. There are 6 different gains that need to be changed, one for each string. If you are having Hard DT’s. try reducing the String Gain to 2 or 3 for all strings.
String tension also has a large effect on sensitivity and playability, but this is not often the cause of double triggering on its own. If the strings have been adjusted too tight or too loose and other parameters have been changed to compensate for this, it could be the cause of your problem. It is always best to set the string tension so that the strings feel comfortable for you to play. The You Rock Guitar is shipped with nominal tension , if this feels too tight or too loose for you, you can adjust the tension by loosening or tightening the strings about ¼ turn. The strings should never be overtightened. A good rule of thumb is that if you press down on a string approximately at its mid-point, it gives easily. We typically adjust them so that they easily can be pressed down to about 1/8” from the surface of the guitar.
Pickups are loose This is unlikely in <Gen2> guitars, but in Gen 1 guitars we have seen cases where pickups become dislodged in transit. It is usually easy to tell if this is the case if the pickups make a buzzing sound when being plucked. This is simple to fix and requires removing the bridge cover plate with a Philips screwdriver and carefully snapping the pickups back on to the string. CAUTION. Use care when snapping the pickups onto the string as too much pressure could damage the pickup material.