iStroboSoft

Features

Specifications

Sweeteners

Support

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.

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.

Default

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

Guitar & Bass

GTR
Peterson Exclusive Sweetened tuning for guitar, especially good for guitars with three saddle bridges and short-scale electric guitars.
ACU
Peterson Sweetened tuning for acoustic guitar in standard tuning. Compensates for string deflection caused by fretting and capo use.
DAD
Peterson Sweetened tuning for acoustic guitar in modal DADGAD tuning with optimized fifths.
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
Peterson Sweetened tuning for bass guitar when playing with acoustic piano.

Buzz Feiten

BFE
Tuning and intonation offsets for electric guitars equipped with the Buzz Feiten Tuning System. (Buzz Feiten Tuning System is a registered trademark of Buzz Feiten Design).
BFB
Tuning and intonation offsets for electric bass guitars equipped with the Buzz Feiten Tuning System. (Buzz Feiten Tuning System is a registered trademark of Buzz Feiten Design).
BF12
Tuning offsets for 12 string guitars equipped with the Buzz Feiten Tuning System*. (Buzz Feiten Tuning System is a registered trademark of Buzz Feiten Design).
BFA
Tuning offsets for acoustic guitars equipped with the Buzz Feiten Tuning System*. For Buzz Feiten Acoustic intonation work, a Peterson AutoStrobe 490 is recommended. (*Buzz Feiten Tuning System is a registered trademark of Buzz Feiten Design).

Steel Guitar

SE9
Peterson Pedal Steel Guitar Sweetened Tuning for 10 string pedal steel in E9 tuning. This is based on Jeff Newman's later system where the E strings are sharp of concert pitch.
SP9
Peterson Pedal Steel Guitar Sweetened Tuning for lever and pedal settings in E9 tuning. Use in conjunction with SE9 preset for open strings.
SC6
Peterson Pedal Steel Guitar Sweetened Tuning for 10 string pedal steel in C6 tuning. This is based on Jeff Newman's system (www.jeffran.com)
SP6
Peterson Pedal Steel Guitar Sweetened Tuning for lever and pedal settings in C6 tuning. Use in conjunction with SC6 preset for open strings.
OE9
Peterson Pedal Steel Guitar Sweetened Tuning for 10 String pedal steel in E9 tuning. This is based on Jeff Newman's earlier system where the E strings are at concert pitch.
OP9
Peterson Pedal Steel Guitar Sweetened Tuning for lever and pedal settings in E9 tuning. Use in conjunction with 0E9 preset for open strings based on Jeff Newman's system.
EM9
Peterson Emmons Style E9 Sweetener for pedal steel guitar. This contains the offsets for the open strings for E9 tuning.
EP9
Peterson Emmons Style E9 Sweetener for pedal steel guitar. This contains the pedal and lever offsets for E9 tuning
EM6
Peterson Emmons Style C6 Sweetener for pedal steel guitar. This contains the offsets for the open strings for C6 tuning.
EP6
Peterson Emmons Style C6 Sweetener for pedal steel guitar. This contains the pedal and lever offsets for C6 tuning
U12
Peterson Pedal Steel Guitar Sweetened Tuning for 12 string universal pedal steel guitar in E9/B6 tuning. This contains the offsets for the open strings based on Jeff Newman's system.
P12
Peterson Pedal Steel Guitar Sweetened Tuning for 12 string universal pedal steel guitar in E9/B6 tuning. This contains the offsets for the pedals and levers based on Jeff Newman's system, use in conjunction with U12 preset for open strings.
LA6
A6 settings for lap steel guitar.
LC6
C6 settings for lap 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.

Bluegrass

dbO
Pure tuning for open A, D and G tunings for Dobro**/Resonator guitars. The major thirds in each tuning will be beatless perfect intervals. (**Dobro is a registered trademark of Gibson Guitar Corp.
BJO
Peterson Sweetened tuning for 5 string banjo in G tuning, sweetens the major third B string.
TBO
Sweetened tuning for 4 string tenor banjo.
MAN
Sweetened tuning for mandolin, mandola & mandocello, string deflection offsets.
dbH
Half-tempered tuning for open A, D and G tuning for Dobro** & Resonator guitars. (**Dobro is a registered trademark of Gibson Guitar Corp.
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.

Misc. Stringed

UKE
Ukulele, string deflection offsets.
LUT
Lute & Viols (17 tone 1/6th Comma Meantone with all enharmonic notes).

Orchestral

VLN
Perfect 5th intervals for 4 and 5 string violin.
VLA
Perfect 5th intervals for viola.
CLO
Perfect 5th intervals for cello.
HRN
Brass & Woodwind, Just Intonation perfect fifth, fourth major and minor third intervals for every key.

Harp

HP1
Peterson Pedal Harp Stretch Sweetener for 47 string harp.
HP2
Peterson Lever Harp Stretch Sweetener for 36 string harp.
HP3
Peterson Pedal Harp Stretch Sweetener for 47 string harp. This is a milder stretch than HP1.

Keyboard

MBA
Peterson Marimba Stretch Sweetener intended for monitoring the instrument's condition, for correct bar re-tuning and regulation, consult the instrument's manufacturer.
VIB
Peterson Xylophone Stretch Sweetener intended for monitoring the instrument's condition, for correct bar re-tuning and regulation, consult the instrument manufacturer.
RHO
Rhodes Electric Piano stretch tuning.
SMG
Acoustic Grand Piano (SMGD). Stretched tuning for acoustic grand piano.
UPR
Acoustic Upright Piano (UPRT). Stretched tuning for acoustic upright piano.

Harmonica

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

Accordion

AW+
Accordion Tuning "Wet" Sharp. This setting is for the sharp set of reeds in a 3 reed block situation.
AW-
Accordion Tuning "Wet" Flat. This setting is for the flat set of reeds in a 3 reed block situation.
AM+
Accordion Tuning "Medium" Sharp. This setting is for the sharp set of reeds in a 3 reed block situation.
AM-
Accordion Tuning "Medium" Flat. This setting is for the flat set of reeds in a 3 reed block situation.
AD+
Accordion Tuning "Dry" Sharp. This setting is for the sharp set of reeds in a 3 reed block situation.
AD-
Accordion Tuning "Dry" Flat. This setting is for the flat set of reeds in a 3 reed block situation.
CAJ
Accordion Tuning Cajun style in C - optimized third & fifth intervals.

Historic Temperaments

JMI
Just Major Intonation
JME
Just Minor Intonation
PYT
Pythagorean Temperament
4MT
Quarter Comma Meantone Temperament
6MT
One Sixth Comma Meantone Temperament
KRN
Kirnberger III Temperament
WK3
Werckmeister III Temperament
YNG
Young Temperament
KLN
Kellner Temperament
VAL
Vallotti Temperament
RAM
Rameau Temperament

World

SIT
Sitar (pure intervals). Just Intonation in the key of C and C#, to tune in C#, use a Transpose value of +1.
OUD
Oud (pure intervals).
GHB
Great Highland Bagpipes. Traditional tempered scale for chanter & drones with an A root. Determine and adjust required concert pitch first before use.
UIL
Uilleann Pipes - pure intervals with a D root.
RAS
Optimized Peterson settings for Maqam Rast traditional Arabic temperament.
SUZ
Optimized Peterson settings for Maqam Suznak traditional Arabic temperament.
NAI
Optimized Peterson settings for Maqam Nairuz traditional Arabic temperament.
AFP
African Pentatonic tuning (GABDF)
SDO
Slendro for Indonesian Gamelan tuning in altered C#, D#, F#, A#, B
PLG
Pelog for Indonesian Gamelan tuning in altered D#, E, F#, G#, A#, B, C

Compare to Sweetened Tunings offered in other products.

REAL-TIME TUNING RESPONSE

Extreme tuning accuracy can't be efficiently conveyed with a needle or LED type display.

There is simply no way of accurately communicating to the user what is happening between the needle gradients or the LED lights.

The real-time response of a strobe tuner allows users to fine-tune their instruments with exacting precision each and every time due to its fluid motion display that reacts instantly to the slightest change in pitch.

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

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

(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

(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

(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

(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.

Designed for both iOS and Android 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.

0

iStroboSoft (iOS)
iStroboSoft (Android)
Note Range
Eb0 (MIDI note 15) to Eb8 (MIDI note 111)
Eb0 (MIDI note 15) to Eb8 (MIDI note 111)
Note Selection
Automatic Or Manual
Automatic Or Manual
Peterson Connect Compatible
No
No
Stretch Tuning Tables
No
No
Accuracy
0.1 Cents
0.1 Cents
Metronome
No
No
Tone Generator
No
No
Concert A Range
340Hz - 540Hz
340Hz - 540Hz
Transposition Range
+/- 12 semitones in 1 semitone steps
+/- 12 semitones in 1 semitone steps
Frequency Response Range
20Hz - 5000Hz
20Hz - 5000Hz
Extended Frequency Mode
iOS Only (In-App Purchase)
Sweetened Tunings
iOS Only (In-App Purchase)
Tuning Scopes
iOS Only (In-App Purchase)
Buzz Feiten Support
iOS Only (In-App Purchase)
Harmonic Tuning Mode
iOS Only (In-App Purchase)
User Presets
No
No
Alternate Skins
User Configurable
User Configurable
Assisted Low Note Detection
iOS Only
Historic Temperaments
iOS Only
Tap Tuning Capability
No
No
Adjustable Root Control
iOS Only

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.

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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 high definition. They require very precise 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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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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Which Peterson products work with Peterson Connect?

Currently, the StroboPLUS HD and the Stomp Classic Pedal Tuner / Active DI are compatible with Peterson Connect.

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How do I find out how far out of tune my guitar is in cents?

Pluck a string and adjust the cent value by simply adjusting the cent control until the strobe image is stationary (only fluctuating around a fixed position and not shifting in one direction over time). In this case, you are tuning the tuner to the instrument. When the image comes to rest, the accompanying numeric cent display indicates the distance from 00.0 cents.

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Peterson Electro-Musical

Products Inc.


11601 S. Mayfield Ave.

Alsip, IL 60803

Ph. 708-388-3311

Fax 708-388-3341


info@petersonemp.com


Business Hours

8:00AM - 5:00PM CST M-F

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