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. This is a one time process per installation. This process will not need to be repeated unless the app is deleted and reinstalled.

To calibrate iStroboSoft and your device:

  1. Open iStroboSoft and tap the bottom right-hand corner
  2. Tap "Clear Sweetener/Temperament" and tap "OK"
  3. Tap "Tuner Settings", then "Advanced Settings", then "Calibrate Tuner"
  4. On your PC or Mac, use this test tone link to calibrate the app: TEST TONE
  5. The test tone will now start to sound A440 Hz from your computer's speakers
  6. With the tone A4 playing at a moderate volume, on the app press "Calibrate NOW" and when its done, press OK
  7. Go back to the tuning screen by tapping the arrow at the top left of the display.
  8. The app is now calibrated to the phone, this is a one-time operation and does not have to be repeated.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

Can I create and store my own presets?

No. The iStroboSoft presets are configured at the factory.

Was this helpful?

Help others find this information sooner.

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?

Was this helpful?

Help others find this information sooner.

Are the in-app options also available for Android?

At this time, Harmonic Tuning, Spectrographs, Oscilloscope, Extended Frequency, and some Sweeteners are only available for the iOS release of iStroboSoft.

These features will soon be available on Strobe™ (Android).

Was this helpful?

Help others find this information sooner.

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 76 (In-App Purchase) unique and very accurate tweaks which often make all the difference.

Peterson Tuners - Sweetened Tunings

Was this helpful?

Help others find this information sooner.

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?

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

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

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

Was this helpful?

Help others find this information sooner.

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

Yes. These devices are compatible with iStroboSoft.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

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.

Was this helpful?

Help others find this information sooner.

There are no entries matching your search.

Not finding an answer? Open a support ticket for personalized support of your Peterson product.

iStroboSoft User Guide
App Privacy Policy
iStroboSoft_InApp_Content

Not finding an answer? Open a support ticket for personalized support of your Peterson product.

Enjoy 10% off
Let's stay connected
Simply sign up for our email list and we'll send you a unique coupon code, plus other exclusive savings!*
Restrictions Apply.
Thanks for joining ouir mailing list!
Keep an eye on your inbox. Your exclusive offer will be arriving soon.
* Must enter email address to receive unique promo code. Upon confirmation of eligibility, subscribers will receive a one-time use promo code for 10% off their purchase at PetersonTuners.com, including mechanical tuners, Virtual Series™ strobe tuners, StroboSoft™ desktop software, BodyBeat™ series metronomes, and accessories. Discounts do not apply toward the purchase of iStroboSoft for Android or iOS or Node products. Offer subject to change at any time. Cannot be combined with another promotional offer. To take advantage of this one-time use offer enter your email address and the offer code will be delivered to that address. Please add petersontuners@petersontuners.com to your safe list to prevent your offer from going to spam. Your email address information is kept private. Privacy Policy.
Need Help?