iStroboSoft

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DEPENDABLE TUNING RESULTS | Peterson Strobe Tuners

DEPENDABLE TUNING RESULTS

All Peterson products provide guaranteed tuning results to within +/-0.1 cent. That's 1/1000th of a fret or semitone!

Tuning with the iStroboSoft not only allows your instrument to sound its best, but helps ensure that it stays that way while playing.

Accurate tuning results that you can depend on while on-the-move with your mobile device of choice.

UNMATCHED ACCURACY | Peterson Strobe Tuners

UNMATCHED ACCURACY

iStroboSoft™ offers the unmatched accuracy of a mechanical strobe tuner for the highest degree of precision available in a software tuning application.

Plug in your electrics or use the built-in mic for acoustic instruments to quickly and easily tune with 1/10th cent accuracy.

Peterson Tuners has offered tuning solutions for over 65 years and is the only company specializing in hardware and software tuning products for all levels of musicians.

RECORDING REFERENCE | Peterson Strobe Tuners

RECORDING REFERENCE

Perfect tuning on the road or in the studio!

Use iStroboSoft to check your instruments' tuning before you hit "record" and make sure to capture the perfect take.

When you use it as a reference for every instrument, you can drastically reduce the amount of dissonance that can occur during over-dubbing.

Sweetened Tunings | (iOS Only In-App Upgrade) | Peterson Strobe Tuners

Sweetened Tunings

(iOS Only In-App Upgrade)

Sweetened Tunings take advantage of the extreme accuracy of the strobe tuning method and are calculated to adjust for the physical properties of each instrument allowing for chords to sound more in tune over the entire instrument.

These exclusive tunings are grouped by instrument type for in-app upgrade or available as a complete library.

"Sweetening" a tuning is the art of using consonance and dissonance to affect the sound of an instrument, and therefore aid the creation of tension and release in music.

Because most tuners can't 'see' better than +/- 1 cent, they can only offer one bland inconsistent flavor of tuning. The high-definition tuning resolution strobe tuners provide allow for a totally different tuning experience. Many of our tuners are loaded with presets that see a particular tuning as a group of notes (not just individual pitches). A Peterson can therefore optimize the notes within these groups to be much more consonant with one another and pleasing to the ear; in a word - sweetened.

Over the years, we have developed Sweetened Tuning presets for a variety of instruments. These tuning presets are exclusive to Peterson products as only Peterson strobe tuners can provide the accuracy required to 'dial' them in on your instrument.

MULTICOLOR MAP SPECTROGRAM | (iOS Only In-App Upgrade) | Peterson Strobe Tuners

MULTICOLOR MAP SPECTROGRAM

(iOS Only In-App Upgrade)

Like a musical score, a sound spectrogram is a visual representation of sound. The horizontal dimension corresponds to time (reading from left to right) and the vertical dimension corresponds to frequency (or pitch) with higher sounds shown higher on the display.

SPECTROGRAM DETAILS

The relative intensity of the sound at any particular time and frequency is indicated by the color of the spectrogram at that point. A spectrogram provides more complete and precise information than a musical score because it is based on actual measurements of the changing frequency content of a sound over time.

Four user-selectable color map options included with in-app purchase. Adjustable gain and contrast options assist in dialing out unwanted frequency information or to intensify desired characteristics.

Choose up to a 4x speed to capture even the quickest sounds before they decay. Analyze them using the log scale option or remove the log scaling for closer analysis.

Features:

-Log scale option for viewing values with greater detail.

-Contrast and gain controls.

-Four different color map options to help isolate or view particular frequencies.

-Speed control (up to 4x) allows shorter signals to be viewed with more detail.

-Capable of reading up to ~22kHz with optional extended frequency mode upgrade.

TUNING TOOL SCOPES | (iOS Only In-App Upgrade) | Peterson Strobe Tuners

TUNING TOOL SCOPES

(iOS Only In-App Upgrade)

The Tuning Tools in-app upgrade places a collection of full featured tuning scopes with real-time performance at your disposal.

Professional-grade sound analysis tools were designed with simplicity in mind without compromising functionality.

OSCILLOSCOPE DETAILS

OSCILLOSCOPE (center): The iStroboSoft oscilloscope allows the user to view the actual shape of the signal coming into iStroboSoft. Quickly find frequency anomalies that may be impeding successful tuning results by monitoring the incoming waveform and looking for spikes or jitter in the signal. iStroboSoft auto-scales the amplitude in the signal to fit it to the screen for easy viewing. You use it to see the shape of the signal more than the actual incoming amplitude level.

Some common uses for using the oscilloscope would be to find bad string windings, noisy pick-ups, and/or cable hum issues.

Features:

- User selectable zoom (2x, 4x, 8x, 16x).

SPECTRUM WAVEFORM ANALYZER DETAILS

SPECTRUM WAVEFORM ANALYZER (right): The spectrum analyzer lets you see what is going on like never before. High-resolution zooming lets you analyze frequencies with unprecedented precision, all in real time. With AUTOSCROLL enabled, the zoomed spectrum will track your fundamental tone so it never goes off screen. Traditional logarithmic and linear scaling on the frequency axis can be chosen, but iStroboSoft goes further and even also allows frequencies to be displayed as notes so you can make sense of the signal in a musical context.

Variable damping (averaging) gives you a longer-term view of the signal, allowing you to see small signals that would otherwise be hidden in the background noise.

The 'X' indicates the fundamental note being identified by iStroboSoft. With the AUTOSCROLL mode engaged, the fundamental note will automatically change with the display.

The spectrum analyzer can be extremely useful in finding noise present in the incoming signal helping to identify reading difficulties. Harmonic detections and visual recognition of fundamental frequencies can also be seen in the analyzer view.

Features:

- Pinch and zoom display to view frequencies closely (double-tap to reset view.)

- Manually swipe (left or right) across the spectrum or use AUTOSCROLL to have iStroboSoft constantly display the fundamental throughout the entire range.

- Dampen control to adjust sensitivity.

- Log scale option for viewing values with greater detail.

- View measurements in Hertz or their corresponding note/octave value.

- Capable of reading up to ~22kHz with optional extended frequency mode upgrade.

SPECTRUM BAR GRAPH DETAILS

SPECTRUM BAR GRAPH (left): The extraordinary definition of the spectrum bar view enables users to analyze frequencies in real-time and view their harmonic relationships with unparalleled accuracy using a clean, easy-to-read interface. Watch frequency relations change as the input frequency varies to help identify problematic areas in sound or use it as a teaching tool for harmonics. Zooming the screen all the way out will allow full viewing of the frequency spectrum while zooming in will permit you to view frequency peaks with exacting precision.

With AUTOSCROLL enabled, use the spectrum bar graph to track changing frequencies up-and down the spectrum as they occur. Logarithmic and linear scaling on the frequency axis can be toggled as a viewing option or view the frequencies as to where they are located with note/octave labeling.

Variable damping (averaging) gives you a longer-term view of the signal, allowing you to see small signals that would otherwise be hidden in the background noise.

Features:

- Pinch and zoom display to view frequencies closely (double-tap to reset view).

- Manually swipe (left or right) across the spectrum or use AUTOSCROLL to have iStroboSoft constantly display the fundamental throughout the entire range.

- Dampen control to adjust sensitivity.

- Log scale option for viewing values with greater detail.

- View measurements in Hertz or their corresponding note/octave value.

- Capable of reading up to ~22kHz with optional extended frequency mode upgrade.

HARMONICS TUNING | (iOS Only In-App Upgrade) | Peterson Strobe Tuners

HARMONICS TUNING

(iOS Only In-App Upgrade)

The harmonics tuning option for iStroboSoft is a fantastic utility for viewing the fundamental frequency and tuning harmonics.

HARMONIC TUNING SCREEN DETAILS

Users can enjoy a real-time view of tuning changes in the fundamental frequency along with the first four overtones with razor-sharp precision using the optional harmonics mode. The fundamental will always be displayed as the left-most band and the harmonic overtones will be displayed in order from left-to-right. The out-of-tune difference is displayed by the direction and speed of the strobe bands.

The harmonic upgrade provides an excellent utility for inspecting the quality of instrument strings as dead strings will not ring in upper harmonic content or provide erratic, out-of-tune harmonics.

For tuning guitar, you can use this screen to tune until the brightest band stops (which may not be the fundamental note). This gives you a better "overall" tone as compared to just hearing the fundamental on its own as all harmonics are taken into consideration using this method.

Help isolate instrument intonation, neck issues or pickup problems as well by analyzing the harmonic tuning levels.

You can also use this screen to manually apply a stretch tuning. For example, on the E strings of the guitar, make sure the harmonics of the lower notes match the same tuning of the higher notes fundamental, i.e., E2 second harmonic matches the E4 fundamental.

Percussion instrument builders who need to know what is happening beyond the fundamental note can also use the harmonic upgrade to see which harmonic(s) need(s) to be adjusted during the building process.

EXTENDED TUNING RANGE | (iOS Only In-App Upgrade) | Peterson Strobe Tuners

EXTENDED TUNING RANGE

(iOS Only In-App Upgrade)

Need a wider range of tuning frequencies beyond 20Hz to 5.5kHz?

The optional Extended Frequency Mode upgrade offers 0.1 cent resolution all the way up to 22kHz!

EXTENDED RANGE FEATURES DETAILS

iStroboSoft will measure up to 5.5kHz in its standard form (Normal Mode). This is an acceptable range for most stringed instruments. In cases where an extended tuning range may be desired (tuning piano, bells, singing bowls, e.g., instruments with frequency ranges above 5kHz), the optional frequency modes may be used.

These optional modes are also tied to your in-app scopes and will extend their ranges as well (where applicable).

Extended Range Modes:

Sub-bass: 0 - 5.5125kHz (Best for less than 20hz. Updates at a slower rate and provides higher accuracy in the extreme low registers.)

Normal: 0 - 5.5125kHz (Default frequency range. This is the mode iStroboSoft ships with.)

Extended: 0 - 11.025kHz (Higher upper range with greater accuracy above 6kHz.)

Full: 0 - 22.05kHz (Highest and widest range mode.

PLUG-IN. TUNE. | Peterson Strobe Tuners

PLUG-IN. TUNE.

Designed for iOS devices, the Peterson Adaptor Cable provides a direct connection to iStroboSoft to allow reliable tuning in even the noisiest environments.

Automatically activates the line-in connection and bypasses the built-in mic on your device for worry-free input toggling.

Default

EQU
Standard chromatic tuning/Equal temperament suitable for regular or alternate tuning, 100 cent intervals - no Sweetening.

Guitar & Bass

GTR
Designed for use with guitars tuned to standard EADGBE.
ACU
Designed for use with acoustic guitars tuned to standard EADGBE.
dAd
Peterson Sweetened tuning for acoustic guitar
12S
Peterson Sweetened tuning for 12 string guitars with regard to the string courses.
BRT
Peterson Sweetened tuning for baritone guitars.
7ST
Peterson Sweetened tuning for seven string guitars.
bAS
Designed for use with basses tuned to standard EADG and BEADG.

Buzz Feiten

BFE
Buzz Feiten Tuning System for electric guitar
BFB
Buzz Feiten Tuning System for electric bass guitar
BF12
Buzz Feiten Tuning System for 12 String Guitar
BFA
Buzz Feiten Tuning System for acoustic guitar

Steel Guitar

SH6
Sid Hudson's Sweetened Tuning for 10 string pedal steel in C6 tuning.
SH9
Sid Hudson's Sweetened Tuning for 10 string pedal steel in E9 tuning.
SE9
Peterson Pedal Steel Guitar Sweetened Tuning for 10 string pedal steel in E9 tuning.
SP9
Peterson Pedal Steel Guitar Sweetened Tuning for lever and pedal settings in E9 tuning.
SC6
Peterson Pedal Steel Guitar Sweetened Tuning for 10 string pedal steel in C6 tuning.
SP6
Peterson Pedal Steel Guitar Sweetened Tuning for 10 string pedal steel in C6 tuning.
OE9
Peterson E9 Pedal Steel Guitar Sweetened Tuning for the Open Strings
OP9
Peterson E9 Pedal Steel Guitar Sweetened Tuning for the Pedals & Levers
EM9
Peterson Emmons Style E9 Sweetener for pedal steel guitar.
EP9
Peterson Emmons Style E9 Sweetener for pedal steel guitar.
EM6
Peterson Emmons Style C6 Sweetener for pedal steel guitar.
EP6
Peterson Emmons Style C6 Sweetener for pedal steel guitar.
U12
Peterson Pedal Steel Guitar Sweetened Tuning for 12 string universal pedal steel guitar in E9/B6 tuning.
P12
Peterson Sweetened Tuning for 12 string universal pedal steel guitar in E9/B6 tuning.
LA6
Peterson A6 Sweetener for Lap Steel Guitar.
LC6
Peterson C6 Sweetener for Lap Steel Guitar.

Bluegrass

dbO
Peterson Combination Sweetened Tuning for Dobro
ACG
Peterson Sweetenend Tuning for bluegrass acoustic guitar in standard tuning. Compensates for strings deflection caused by frettting and capo use.
FDL
Perfect 5th intervals for 4 and 5-string fiddle.
BJO
Peterson Sweetened Tuning for 5 String Banjo
MAN
Peterson Mandolin Family Sweetener
dbH
Peterson Combination Sweetened Tuning for Dobro

Misc. Instruments

TBO
Peterson Tenor Banjo Sweetener

Orchestral

VLN
Peterson Violin Sweetener
VLA
Peterson Viola Sweetener
CLO
Peterson Cello Sweetener
HRN
Peterson Brass & Woodwind Sweetener.

Harp

HP1
Peterson Pedal Harp Sweetener
HP2
Peterson Lever Harp Sweetener
HP3
Peterson Pedal Harp Sweetener

Keyboard / Stretch Tunings

MBA
Peterson Marimba Sweetener
VIB
Peterson Xylophone Sweetener
RHO
Rhodes Electric Piano stretch tuning.
SMG
Acoustic Grand Piano
UPR
Acoustic Upright Piano

Harmonica

OMB
Original Marine Band Tuning for Harmonica
MMB
Modern Marine Band Tuning for Harmonica
MSR
MS Richter Tuning for Harmonica
S20
1896 Marine Band/Special 20 Tuning for Harmonica
MSM
MS Models Tuning for Harmonica
CYT
Country Tuning for Harmonica
NMT
Natural Minor Tuning for Harmonica
HMT
Harmonic Minor Tuning for Harmonica
GMT
Golden Melody Tuning for Harmonica .
CMT
Chromatics Tuning for Harmonica

Accordion

AW+
Accordion Tuning 'Wet' Sharp.
AW-
Accordion Tuning 'Wet' Flat.
AM+
Accordion Tuning 'Medium' Sharp.
AM-
Accordion Tuning 'Medium' Flat.
AD+
Accordion Tuning 'Dry' Sharp.
AD-
Accordion Tuning 'Dry' Flat.
CAJ
Accordion Tuning - Cajun style in C -

Historic Temperaments

JMI
Just Major Intonation
JME
Just Minor Intonation
PYT
Pythagorean Intonation with A base
4MT
1/4 Comma Meantone
6MT
1/6th Comma Meantone - A-based
KRN
Kirnberger III Temperament
WK3
Werckmeister III
YNG
Young Temperament with A base
KLN
Kellner
VAL
Vallotti Temperament with an A base.
RAM
Rameau Temperament
LUT
Peterson Sweetened Tuning for Lute

World

SIT
Sitar (pure intervals)
OUD
Oud (pure intervals).
GHB
Traditional Great Highland bagpipe tuning.
UIL
Uilleann Pipes Tuning.
RAS
Maqam Rast
SUZ
Maqam Suznak
NAI
Maqam Nairuz
AFP
African Pentatonic tuning
SDO
Slendro - Indonesian Gamelan tuning
PLG
Pelog - Indonesian Gamelan tuning
UKE
Peterson Ukulele Sweetener

Compare to Sweetened Tunings offered in other products.

Note Selection: Automatic Or Manual

Peterson Connect Compatible: No

Stretch Tuning Tables: No

Note Range: Eb0 (MIDI note 15) to Eb8 (MIDI note 111)

Accuracy: 0.1 Cents

Metronome: No

Tone Generator: No

Concert A Range: 340Hz - 540Hz

Transposition Range: +/- 12 semitones in 1 semitone steps

Frequency Response Range: 20Hz - 5000Hz

Sweetened Tunings: iOS Only (In-App Purchase)

Extended Frequency Mode: iOS Only (In-App Purchase)

Tuning Scopes: iOS Only (In-App Purchase)

Harmonic Tuning Mode: iOS Only (In-App Purchase)

Buzz Feiten Support: iOS Only (In-App Purchase)

User Presets: No

Tap Tuning Capability: No

Alternate Skins: User Configurable

Assisted Low Note Detection: iOS Only

Historic Temperaments: iOS Only

Adjustable Root Control: iOS Only

47 Reviews
4.9 out of 5 stars.
5 stars
91%
4 stars
6%
3 stars
0%
2 stars
2%
1 star
0%
See All iStroboSoft (iOS) Reviews
By Tom Buur on Thursday, May 2, 2024
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, 6-String Acoustic Guitar, 4 String Bass, 10 String Pedal Steel Guitar
Don't remember when I bought this. I have used iit for several years and like it very much. Seems I am most comfortable with the strobo way of tuning. Now I just wonder why the desktop version of this gets so many bad reviews. May I suggest that Peterson ports the mobile version to mac/pc and also sell it at the same very reasonable price.

If there is one feature I would like to request for iStrobosoft, it would be the ability to set the desired tuning frequencies myself. I am happy tuning the open strings to default, except the G-string that on some guitars should be a few cemts lower than default.

2 people found this review helpful.
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By Andrew Neville on Saturday, March 23, 2024
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, 4 String Bass, 5 String Bass, 6-String Acoustic Guitar

By Peter Brusch on Tuesday, September 26, 2023
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, 4 String Bass
Simply the best one.

2 people found this review helpful.
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By Scott on Saturday, June 10, 2023
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, 6-String Acoustic Guitar

By Richard Sabo on Monday, May 22, 2023
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, 4 String Bass, 6-String Acoustic Guitar, 5 String Bass
iStroboSoft on my iPhone is so easy to use, easy to see and read and makes setting up my intonation a breeze.

1 person found this review helpful.
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By Colin Thomson on Monday, January 9, 2023
Edited on Monday, January 9, 2023
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, 6-String Acoustic Guitar, 5-String Banjo, Dobro® / Resonator Guitar, 6 String Lap Steel
This app is brilliant especially after adding the extra features, very accurate and is a great addition with all Peterson products

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Anonymous on Monday, December 5, 2022
Edited on Monday, December 5, 2022
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, Mandolin, 6-String Acoustic Guitar
Works great and use with the optional mic and the tuning package lets you tune any acoustic instrument and tune the room you’re in along with finding any pesky frequencies in your listening area or amp output. I have a HD on my pedalboard too but there is a separate connection to plug your 1/4” jack into IOS device/App and so use this app in a pinch too. The font can be cool but is a little difficult to read though and I hope they will update this soon … please.

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By Vincent Schrover on Tuesday, November 8, 2022
Reviewed on
Peterson Website
Plays 6-String Electric Guitar, 6-String Acoustic Guitar
Still no Sweeteners for Android.

23 people found this review helpful.
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Anonymous on Wednesday, November 2, 2022
Reviewed on
Peterson Website
Plays 5 String Bass, 6-String Acoustic Guitar, 4 String Bass, 6-String Electric Guitar
Great tool. I love the stomp versions of these and figured I'd grab this for instances when I'm not fully equipped or in a pinch. Flawless and accurate.

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By Dennis on Tuesday, August 16, 2022
Reviewed on
Peterson Website
Plays 4 String Bass, 10 String Pedal Steel Guitar, 6-String Acoustic Guitar, 6-String Electric Guitar, 5 String Bass, Dobro® / Resonator Guitar
Very easy to use and accurate.

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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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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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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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iStroboSoft User Guide
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 The PitchGrabber Mobile tuning pickup easily and safely clamps on to virtually any musical instrument and captures the pitch using its piezo pickup sending it directly to your mobile tuning application. | Peterson Strobe Tuners

Pitch Grabber Mobile Tuning Clip

$21.00

The PitchGrabber Mobile tuning pickup easily and safely clamps on to virtually any musical instrument and captures the pitch using its piezo pickup sending it directly to your mobile tuning application. The PitchGrabber Mobile uses the headphone/mic input of your mobile device to completely isolate the sound of your instrument and provide a direct input path to your tuning application. Perfect for tuning in noisy environments. 90-day exchange warranty.
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