Knowledge Base

Frequently Asked Questions Product Manuals Firmware History

How do I read a strobe display?

Basically, the strobe image appears to travel to the left if your instrument is flat of the desired pitch and to the right if it is sharp. On earlier models such as the StroboStomp 1, StroboStomp 2, VS-1, VS-II and V-SAM, the strobe image travels upward if your instrument is sharp and downward if your instrument is flat of the desired pitch.

Adjust your instrument until the pattern is as close to still as possible. Strobe displays are 'real-time' and extremely precise. They require very fine tuning adjustments to stop the display because the frequency/pitch of any instrument is never totally stable.

You'll quickly learn to read the display, make the most precise adjustments and appreciate the high resolution that only a Peterson provides.

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I only have a Lightning port for audio. Can I use the Pitch Grabber or Peterson adaptor cable with my device?

Yes. You can use the Apple Lightning-to-audio adaptor with this accessory for guaranteeed connectivity.

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Can I create and store my own presets?

No. The iStroboSoft app presets are configured at the factory.

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Are the in-app options also available for Android?

Unfortunately, at this time they are only available for the iOS release of iStroboSoft.

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Is the accuracy the same for all Peterson tuners?

Yes, the accuracy is within 0.1 cents (1/1000 of one semitone) as with all Peterson Strobe Tuners. An important thing to note is that Peterson Strobe Tuners have ultra high definition displays, so not only are they highly accurate in detecting a note but they have the ability to display that accuracy. Other products claim accuracy but do not have the high definition screen to display the level of accuracy in which they claim. If you cannot see the accuracy, it is of little value. Only Peterson provides High Definition Strobe Tuning.

How Accurate Is My Tuner?

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What is my iStroboSoft’s Sweetened Tunings feature all about?

A Sweetener is a set of cent offsets or a deviation from generic Equal Temperament interval spacing traditionally used in tuning. Tuners made by Peterson, including the iStroboSoft, contain many choices of Sweeteners, in other words, several presets with differing interval spacing relevant to the instrument being tuned. If you’ve never been happy with how your instrument tunes up with your present tuner, a Sweetener could be just the thing to change that without any modifications whatsoever. The iStroboSoft offers iOS Only (In-App Purchase) unique and very accurate tweaks which often make all the difference.

Peterson Tuners - Sweetened Tunings

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How accurate is my iStroboSoft?

Your iStroboSoft is accurate to 0.1 cent (1/1000th of a semitone). It’s important to note, that unlike other tuners which list the detection accuracy as the main specification, the iStroboSoft detection AND display accuracy is 0.1 cent due to its high definition display.

How Accurate Is My Tuner?

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I already purchased iStroboSoft but I need to download it again. What do I do?

The App Store and Google Play Store will allow you to re-download the iStroboSoft app at no charge as long as you are using the same account as when the original purchase was made.

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Can I share In-App upgrades across my devices?

Yes. As long as your devices are using the same iTunes account. This is possible. NOTE: If you have Family Share enabled on your account, you may not be able to do this.

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My app doesn't match my hardware. Do I have to calibrate it?

In most cases, you can use the app without calibration but to guarantee the 1/10th cent reading, we've added a calibration feature in the app. Please refer to the user guide located here.

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Where do I enable the harmonics upgrade?

Holding your device in portrait mode, click the arrow in the bottom -left of the screen to open the tuning panel. Go to the top of the panel and select TUNER > MODE > HARMONICS from the drop-down.

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I need to delete the app off my iOS device. How can I do that?

Delete the iStroboSoft app from your device by holding the icon down until a red "X" appears in the top-left. Tap the "X" to delete the app from your device.

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Can I use this app with the iRig/iRig2 or Apogee Jam?

Yes. These devices are compatible with iStroboSoft.

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How do I restore my In-App purchases?

In-app content will always need to be reinstalled with any app update as that is the way the App Store manages access. To re-enable your in-app purchases, go in the SETTINGS of the iStroboSoft app (bottom-right tab) > UPGRADES > RESTORE PURCHASES.

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How do I allow access to the built-in mic on my device?

SETTINGS (on your iPhone/iPod/iPad) > PRIVACY > MICROPHONE. Enable the slider to allow access.

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What should I do if my new Peterson product doesn't seem to work properly?

If you've first tried all of the solutions offered here, please contact Peterson directly. It is important that you do NOT return the product to the store in which you purchased it without Peterson instructing you to do so. If your unit is problematic, we would like to limit the chances of another customer purchasing the returned unit. Always arrange for product service or replacement directly with Peterson.

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I often tune my acoustic instrument in a loud environment. What's available to help with that?

If you are tuning an instrument with an output, you can use the Peterson adaptor cable to isolate your instrument from the environment. You can also choose to use the Peterson Pitch Grabber for acoustic instruments.

Pitch Grabber Mobile Tuning Clip

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Adaptor Cable for Mobile Devices

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What is the range of Hz calibration or Concert A calibration of my iStroboSoft?

The Hz calibration range of your iStroboSoft is 340Hz - 540Hz. The default setting is Concert A 440Hz.

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© 2023 Peterson Electro-Musical Products, Inc. No part or parts may be copied or reproduced without the express written consent of Peterson Electro-Musical Products, Inc. The terms Virtual Strobe™, Sweeteners™, Sweetened Tunings™ and the linear & concentric strobe patterns are trademarks/registered trademarks of Peterson Electro-Musical Products, Inc.

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