DaTuner (The Tuner for Android) Help and Overview

Old Information Here! (Jan 23, 2013)

Some of the information and screenshots on this page are for an older version of DaTuner.  I am updating this page right now, and will delete this comment when the help page and screenshots are completely up to date.


DaTuner is a highly rated chromatic instrument tuner for Android.  It is designed to be very easy to use and to tune your instrument (guitar, ukelele, violin, bass, cello, mandolin, piano, harp, saxophone, balafone, harp, motorbike timing belt, wheel spoke, harmonica, kazoo) quickly and painlessly.

Android Central: For the Android-loving musician, I think DaTuner Pro is easily the best tuner you can have on your device. I used to give that title to gStrings, but DaTuner has proven to be so powerful, easy to use, and accurate, it’d be foolish to not use it. AndroidPIT: AndroidPIT Android Market I can recommend Tuner – DaTuner to all musicians, particularly to guitarists. The results are surprisingly accurate and the app is a chromatic tuning device, meaning it can help tune unusual tones, too. This review is of the lite version, which I’m totally happy with. I will be buying the paid version very soon.

A Chromatic Tuner is an instrument tuner that can tune an instrument to any note in the chromatic scale.  DaTuner is a Chromatic Tuner for Android. The goal of DaTuner (the chromatic tuner) is that it should “Just Work” without any configuration or messing about with the phone.  It accomplishes this via a wide frequency range, self-adjusting microphone sensitivity, and a precise, accurate, and responsive pitch detection algorithm. Tuning with DaTuner should be quick and painless.  You simply play the note you want to tune, and DaTuner will tell you which note it is and how close that note is to “perfect.”  Let’s go into the details after we present some screenshots…

Screenshot (Free)

DaTuner Free Screenshot

DaTuner Free Screenshot, capturing F sharp

Screenshot (Donate)

DaTuner Donate in landscape orientation

DaTuner Donate in landscape orientation

Description of DaTuner Screen

DaTuner Donate in landscape with helpful numbers pointing at features

DaTuner Donate in landscape with helpful numbers pointing at features

The donate version screen is a superset of the free version screen, so all features on the free version are also present on the paid version.

1.) Main Note Display

This giant display shows the best guess at the note that is currently being played.  If the tuning of a note is more than a semitone off, you will need to use this to tune up or down to within 50 cents of your desired tuning before using the error bar.  For example, if you are tuning the low E string of a 6 string guitar, but the display says “D#”, then you need to tune up until the display says “E” before you can start using the error bar.

2.) Microphone Level (dB) and Sensitivity Level

This bar shows the following information:

2.1) Peak Signal Envelope

The “envelope” level, shown in a darker colour, rises quickly with peaks in the input signal and then drops slowly, giving you a good idea of the overall “strength” of the input signal that you are tuning. Note: This indicator has been removed in recent versions of DaTuner.

2.2) Trigger Point

The “start tuning” trigger point is a little yellow triangle indicating how strong the input signal must be before DaTuner will start analyzing the input waveform.  When “Automatic Sensitivity” is enabled, this line will rise and fall as the input signal level changes. To conserve power and reduce confusion with background noise, DaTuner will only begin tuning when the instantaneous input level rises above both the “envelope” level and the “start tuning” trigger point. Hysteresis is used (adjustable in the advanced menu) to prevent noise when the signal from the instrument is hovering around the trigger level.

2.3) Instantaneous Signal Level

This shows the instantaneous microphone input level, and it is shown in a lighter color.  It changes instantaneously as the strength of the note changes.

Automatic Microphone Sensitivity

In Automatic Sensitivity mode, DaTuner will take care of adjusting the sensitivity so that tuning can be performed from any distance away from your instrument (obviously, closer is better) and you shouldn’t even have to touch the phone while tuning.  DaTuner will ensure that the trigger point will always be a little bit above the background noise but below the peak signal level envelope. With automatic sensitivity disabled, the trigger level is controlled completely by you – you choose at which point the tuner should start analyzing by touching the Microphone Senstivity bar at a level above the average background noise but below the peak signal produced by your instrument.  This allows you to fine-tune the input level in cases where DaTuner’s own level adjustment in Auto-Sensitivity mode just isn’t cutting it.

3.) Error Bar

The bar at the bottom of the screen displays the amount that your instrument out of tune compared with “ideal.”  The goal is to tune so that this bar becomes a thin line right in the middle of the screen.  When the pitch is flat (frequency lower than perfect), the bar will extend out to the left of the screen, and when the pitch is sharp the bar will extend to the right.  When the incoming pitch is “close enough” to perfect, the display will turn green and you can move on to the next note.  You can tweak the “close enough” point at which the display turns green in the settings menu.

4.) Frequency Display

Displays the incoming frequency, in Hz.

5.) Error in Cents (donate only)

Displays how much off of ideal tuning the instrument is, for the currently playing note.

6.) Pitch Pipe and Note Selector (donate only)

This bar, on the right-hand part of the screen allows you to “lock” to a note for tuning and for pitch pipe output.  For instance, if you want to tune the high “E” of your 6-string guitar (E4 at 330Hz) by ear, you can “lock” the display, scroll it until E4 is in the center of the screen, and then hit the pitch pipe button at the top right of the screen to make DaTuner start playing the note you wish to tune to.  You can then shut off the pitch pipe and play E4.  Since the display is locked to E4, even if your guitar is way out of tune at D# or F, the note display will be locked at E4 and the Error Bar will be maxed out at +/-50 cents. PitchPipe AutoTone (donate version only)The idea with AutoTone is to provide the “Just Works” no-touch concept of DaTuner but for the pitch pipe, too.  DaTuner enters AutoTone mode when the pitch pipe button is enabled but the lock button is unlocked.  In this mode, DaTuner will wait for an input note, analyze it, and then when it is once again quiet, play the ideal version of the same note back.  It also incorporates an “erroneous” output at the beginning of the note playback, but gradually plays the ideal note at the end of playback.  This is to allow those who are horrible at tuning by ear (like me) to, with this feedback, actually hear the error between your instrument’s tuning and the ideal pitch.

7.) Current Reference Frequency

If the reference frequency is something other than 440Hz, then it will be shown in the top-right part of the screen.

8.) Current Temperament

If the current temperament is something other than “Equal,” then it will be shown in the top-left part of the screen.

X.) Emulated Strobe Display (donate version only)

Hidden by default, when the emulated strobe display is on, DaTuner will show a circular, strobing pattern while analyzing.  The pattern will spin to the left when your instrument tuning is flat, and to the right when your instrument tuning is sharp.  When your instrument tuning is perfect, this display will stop spinning.  This strobe output is emulated today, although a real strobe tuner is almost working, so stay tuned.

Quick Start: How to Tune a 6-string Guitar with DaTuner

Standard tuning for a 6-string guitar goes like this (from the high notes to the low notes): E4, B3, G3, D3, A2, E2. Start by plucking the low E string (E2) and check DaTuner’s display to ensure that E2 is shown and, if so, what the error (+/-) is.  Pluck again, and adjust the string while DaTuner is analyzing to get as close as possible to the target frequency.  If the error bar shows flat (error bar to the left of center) then you need to tighten the string, producing a higher note.  If it shows sharp (error bar to the right of center) then you need to loosen the string, producing a lower note. Keep plucking and adjusting until you can get the tuning as close as possible to the target and the display is green.  When finished, move on to A2, D3, G3, and so on.

Configuration Settings

We can start by saying that you probably won’t need to mess around with any of the configuration settings, since DaTuner should just work out of the box.  That said, if you feel adventurous, here is a run-down of which settings are available and how to tweak them.

Giant Knob

The “Giant Knob” is a gadget created to allow quick and precise adjustment of various settings that have a wide range but also require precision.  It is used for all settings, even for those that it doesn’t suit. I take credit for developing this extremely intuitive UI that half of the users don’t understand :)  (really, you’re not alone).  Anyway, for the sake of code reuse, many of the settings in DaTuner require you to turn the giant knob and then confirm your selection with a click of the green check mark. Clicking the green check means “ok, confirm what I have selected with the giant knob” and clicking the red cross means “no, cancel my selection.”

A4 Calibration (Reference Frequency)

“Standard” A4 is at 440Hz, but music can be played using A at almost any other frequency.  As long as the exponential relationship between the notes stays the same, it’s all good.  The reference frequency of A4 can be adjusted up or down in 0.1Hz increments by the giant knob, from 220Hz all the way to 880Hz.


Allows you to transpose notes.  This is accomplished by adding a modifier to the reference frequency, so transposition can be accomplished while maintaining any custom temperament settings.  (ie it doesn’t just remap notations, it actually does a mathematical transposition.)

Auto Sensitivity (off/dB)

By default, this setting is set to 12dB.  With auto-sensitivity mode on, DaTuner will try to automatically adjust the trigger point so it lies between the background noise envelope and the signal envelope, isolating the sound of your instrument from background noise.  Any setting except for “OFF/Manual” turns auto-sensitivity on.  The “dB” setting chooses sets the minimum level of signal to background noise before analysis will start.  If you find that DaTuner is constantly picking up background noise, try to adjust this seeting to a higher dB value.

Sensitivity (dB)

When Auto Sensitivity mode is off, this dial can be used to adjust microphone sensitivity.  You may also tweak microphone sensitivity by touching the signal bar on the left hand side of the screen; this latter method is recommended  since you can see the strength of the input signal there.


By default, DaTuner starts out in “precision” mode.  The tuning algorithm used by DaTuner can be set for either responsiveness mode or precision mode.  In responsiveness mode, less of the input signal is used for each analysis, resulting in a faster turnaround time, but with less resolution.  More calculations can be averaged per second in responsiveness mode, but each calculation will be slightly more prone to error since less data is used.  You can try both modes, and see which one gives you better results.

Averaging Time (ms)

Since no single analysis is perfect, averaging is applied to the analysis results, with more recent results weighted higher than older results.  If you experience “twitchiness” in DaTuner, where the note seems to jump around a lot, try increasing the averaging time.  On the other hand, if you experience lagginess, try decreasing the averaging time.

In-tune range (cents)

This controls the +/- range where the display will turn green, indicating that the pitch is close enough to center to move on to the next one.

Sharp Color

The default screen color used when a note is flat is orange, but it can be changed so that the display for Sharp, In-Tune, and Flat all have different colors.

Flat Color (donate only)

The color for flat notes can also be adjusted.

Octave Display Offset (A4) (donate only)

By default, 440Hz is A4.  Octave Display Offset controls which subscript number follows “A” at the reference frequency.  For instance, if this is set to “3”, then when the reference frequency is detected, DaTuner will display A3 instead of A4.

Strobe Tuner Display (donate only)

Set this to SHOW to show the strobe tuner, or HIDE to hide it.

Pitch Pipe Min. Sine Frequency (donate only)

Speakers on mobile phones have poor frequency response, and trying to output a low-frequency sine wave (like E2 at 82Hz) will result in almost complete silence.  For this reason, you can adjust the minimum sine frequency up to where a perfect sine is audible on your speakers.  Below this level, a square wave will be used in the output instead of a sine wave, which should be audible on all mobile phone speakers.

Pitch Pipe AutoTone Time (ms.) (donate only)

When the pitch pipe is in autotone mode, it switches automatically between listening for an input tone and playing an output tone.  This setting controls the length of tone playback when DaTuner is playing a tone.

Pitch Pipe Error Multiplier (donate only)

In AutoTone mode, this multiplier amplifies the amount of error between the detected note and the ideal note before playing it back, playing back the error in pitch at a significantly higher or lower frequency and then adjusting the output tone up or down in pitch until it finishes “perfect”.  The purpose of this is to allow those of us who have no ear for musical notes (like me) to hear an amplified difference between your instrument’s tuning and the ideal tuning.  When set to zero, no error will be played back and DaTuner will play only the ideal tone back.

Custom Temperament (donate only)

Custom temperaments can be applied to DaTuner.  You can also provide your own custom temperament files – after the first execution of DaTuner a .csv will be created, and you can manually open this and add your own temperaments using a computer or local file editor.

Troubleshooting & FAQ

Problem: When I play a note, nothing happens!  It looks like DaTuner is locked or doesn’t pick up any sound.

Solution 1: Either turn on Auto-Sensitivity mode in the settings menu or, if you want it off, ensure that you calibrate the microphone sensitivity by touching the bar on the left hand side of the screen at a level below the peak input level.

Solution 2: Try rebooting the phone.  Sometimes, other applications neglect to release their lock on the audio input hardware.  There is currently no warning in DaTuner if this happens – the microphone just won’t start up!

Solution 3: The hysteresis range may be too large for your device. Enter the advanced settings menu and try turning it down.

Solution 4: If the environment that you are tuning in is noisy, the identical notes filter may be preventing the display from being updated. You can try turning this percentage down in the advanced menu.

Solution 5: As a last resort, try uninstalling and reinstalling.

Problem: None of the settings in the configuration menu can be applied.  I also can’t bring up the big knob.

Solution 1: Disable the task killer that you have running on your phone.  It is killing off the main DaTuner activity when you enter the settings activity, and killing off the settings activity when the BigKnob activity is starting.  If you don’t run a Task Killer, then you might have the Debug->kill unused activities immediately setting set to TRUE in your Android debug settings.

Problem: background noise, especially low rumbling, detected instead of the note playing.

Solution 1: This is due to the wide frequency range of DaTuner and the way that harmonics are used to help detect pitch. You can try turning on noise reduction. If that doesn’t work, go somewhere quieter.

Problem: DaTuner doesn’t work very well or at all after an upgrade.

Solution 1: Try uninstalling and re-installing.  This has solved the problem for many people.  Also, if there is a directory called “DaTuner” in your external storage directory, delete it.

Problem: In the configuration menu, I push the green check mark and nothing happens.

Solution 1: I take credit for developing this extremely intuitive UI that half of the users don’t understand :)  (really, you’re not alone).  Anyway, for the sake of code reuse, ALL of the settings in DaTuner require you to turn the giant knob and then confirm your selection with a click of the green check mark.  This even applies for simple “on/off” settings.  Clicking the green check means “ok, confirm what I have selected with the giant knob” and clicking the red cross means “no, cancel my selection.”  At some point I will update the settings menu to be more android-like, but am too busy currently to spend time on it.  So, for example, if you want to turn on auto sensitivity, then you turn the knob until you find the auto-sensitivity setting you want and the click the green check mark.


Frequency Response



TBD http://www.androidpit.com/en/android/tests/test/392801/Tuner-DaTuner-An-Android-Chromatic-Tuner

47 Responses to DaTuner (The Tuner for Android) Help and Overview

  1. Javi says:

    Good morning
    Sorry but my English is very bad.

    Congratulations daTuner application.
    Could beside the note indicates the number of octave?

  2. Elvis says:

    hi i’m interested in buying the DaTuner Donate Version but I can not buy by the android market there is a possibility that I will make them uan bank transfer and send me the link to my email

  3. Ayodio says:

    Thanks for this magnificent app. By far the best guitar tuner I’ve found on Android.

    I just have one suggestion, it would be cool to have big display about whether you need to tune up or down, because when you’re close to the perfect tuning it is sometimes difficult to tell, if you have to tune up or down.

    Anyway congratulation.

    • Chris says:

      I like it! I have a strobe display in the donate version, and you can set sharp and flat to be different colours in the free version, but perhaps I could also add a big that is always visible?

  4. Scott Bouloutian says:

    I love this app! I really want to make an app similar to this. Do you have any links or advice for me on how to get the frequency reading from the android microphone?

    • Chris says:

      Hi Scott!

      Google “FFT”!

      Cheers, Chris

      • Scott Bouloutian says:

        Hi! I’m really sorry to bother you again. I’ve been doing alot of research on FFT and it seems like I have one piece left in the puzzle. Do you know how do you get the frequency from the magnitude of the output of the FFT?

        • Chris says:

          Hi Scott,

          I thought that I had replied to this, but apparently not!

          Magnitude of the FFT only tells you how strong the signal is at a specific index.

          It is the FFT index with the largest magnitude that tells you what the most probable frequency is.

          So, let’s say you do an FFT with a size of 512. You find that the maximum FFT magnitude out is at, let’s say, 33. (you only use the first 256 peaks in this case, the remaining peaks will have the same magnitude as the first 256 peaks, only mirrored.)

          So how do you go from that to frequency?

          index / (FFT size) * sample rate.

          In this case, if you were using the microphone at 44.1kHz:

          33 / 512 * 44100 = 2842.4Hz.


  5. Scott Bouloutian says:

    Thank you so much! I got the correct frequency readings when playing a few notes around middle C, but then everywhere else gives strange results. I’ll keep tinkering around with it. I read somewhere about a window function so I’ll give that a try. Thanks so much for your help!

  6. Karen says:

    I was able too figure this out and tune my guitar before I even found the
    Help instructions. They are written very clearly as well. I’m just
    Learning to play guitar so I’ll be using this a lot. I like the color changing and other indicators that get you tuned to the note. I have free version on Samsung Galaxy Smart. Thanks!

  7. Medmuse says:

    Chris, do you have other temperaments available, such as modified mean tone (Young’s, for example)? I need them for my historical harps, where mean or just temperaments aren’t appropriate. I’m no programmer, so I need one readymade. Thanks and keep up the good work!

    • Chris says:

      Alternate temperaments are available in the paid version. Currently they are hardcoded but I am working on making them customizable, at least via a text editor. The good news is that Young temperament is included, so you won’t need the customization feature. Cheers, Chris

  8. Ro says:

    I’m having a problem. I’m sorry, I’m very new at this. But everytime I try to tune the low E string, the display says B#. I don’t know what can I do to “fix” this, either from the app or from my guitar.

    Thank you.

    • Chris says:


      Try to get the guitar closer to the phone, and turn off noise reduction if it is on. If that doesn’t work, would you be able to use any android audio recorder and record your low e string so I can see how your microphone response is?

      Also, what kind of phone are you using?

      • Ro says:

        Thanks for such a quick reply. I’ll surely try to get the guitar closer to the phone and the noise reduction thing.

        My phone is a Motorola Cliq (or Dext, depending on where you are)

        Okay, I’ll try your suggestions and if they don’t work, I’ll try recording my low E string. Thank you!!!

  9. Tony M says:

    First, thanks for an awesome app, running beautifully on my Moto Triumph! It seemed like I was “discovering” new features every time I used it (until I finally read the *whole* help file…. :) )

    Coupla things:
    1) This may or may not pertain to Ayodio’s comment above; it occurred to me that perhaps an option for the “error bar” could switch into a “magnify” mode when the pitch lands within, say, 10 cents for a certain period, making the full width represent 20 cents f’r'instance. This could perhaps be differentiated by having the vertical tuning line blinking, extended or highlighted somehow, so that if you’re not really paying attention to the markings, you’d at least be notified.

    2) Your recent post with the FFT of the absence of 82.4 Hz made me realize just how impressive it is that this app tunes the low B on my bass (30.87Hz)!

    3) I have one possible issue, but after reading all the comments and tips, I’m going to try a few things before I ask about it.

    Thanks again, Chris. I’m actually considering purchasing a second time, just because….

  10. kptrpt says:

    I had da tuner pro installed on my HTC Thunderbolt. I had to get a replacement and lost the app. I’ve downloaded the lite version, but I would love to have the pro back. I don’t remember whether I downloaded it from the App Market or the Amazon app store, but I don’t have it under my apps in either. Can you help?


  11. Chris says:

    Hi, I am not sure about what I can do to help. If it was purchased from google it should show up under your my apps tab in the Android Market. I don’t actually know about Amazon but I assume they have the same thing. For google, just search for DaTuner and then click on DaTuner Pro. It should say ‘purchased’ beside it. If not, try Amazon.

    If it helps, I can look for your purchase under my market account.unfortunately,i am unsure of how to do that under Amazon.

    Best, Chris

    • kptrpt says:

      Hi Chris
      Thanks for the quick reply. For some reason it doesn’t show up as a purchased app under either market. I’ll just have to bite the bullet and put out another whopping $2.29 – lol
      Good luck with the app – it’s great (a metronome included would be cool too ;)


  12. Frank Deruyck says:

    Can someone please tell me what TEMPERAMENT I should use to tune an old GRAND PIANO (Pleyel Grand Piano building year 1907). I tuned it with the “EQUAL” temperament and it sounds horrible (sharp an noisy). I use the DONATE version and can install many different TEMPERAMENTS, just don’t know which to choose!!
    Thanks a lot
    Frank (Belgium)

  13. mtheo says:

    Hi Chris,
    I congratulate you on the development of DaTuner. It’s a clever and very usable application. It’s quite hard to find an alternative.

    I would have a question, maybe obvious, but not for a newbie like me. Besides the built-in microphone, should it be possible to get the input signal also from an external source connected directly to the input jack of my smartphone? In this way, I could tune my electric bass guitar in the rehearsal room without keeping quiet the rest of the band :-)

    Thanks again for your great work.


    • Chris says:


      I have tried on one phone with a headset microphone and it worked, but I think I need to do some more work on this since I’ve had at least one report that it didn’t work.

  14. Brian says:

    Hi Chris

    I have been tuning pianos professionally for over 30 years and finally I’ve found a compact, accurate and affordable device – Da Tuner, to make my work so much easier. At present I am using the app mainly to tune just the F3-F4 temperament and have achieved spot on results. Occasionally I have to tweak in just a smidgen of a cent here and there to get the intervals beating consistently, but that’s probably due to the different scaling between piano models. Pianos are a very different beast compared to other instruments, demanding a very systematic approach when tuning. Shortly I intend to do a few test tunings from top to bottom, but envisage the result to be darned near perfect.

    I am so impressed with your Da Tuner, I have printed out an information sheet for my piano customers, assuring them that they will now be getting the very best from their piano!

    There are a few things I’d like to discuss with you that others might find boring on this forum, so you might like to contact me on my website.

    Congratulations on your excellent product.



  15. Brian says:

    PS – I suggest you trim the torn edges on your paper note reference in your demonstration video clip. It’s all about presentation eh! BH

  16. aasten says:

    Hi there! Dear author! First, thank you for this app! It is very suitable for me. I use this free version both when tuning guitar as well as when singing — to verify my voice. So, I have a proposal about improving the GUI. It will be more convenient in this way to add the displaying of the note in the stave (simply as dot or ‘x’ or smth else) with selected by user clef (bass,treble,etc) and key of diatonic scale (Cmaj,Dmin,etc). Simply by choosing between representation of the note — either standard (A4, B3,etc) or drawn on stave. As for me — I am ready to pay for this feature :).
    P.S. English is not my native language, sorry if grammar is incorrect.
    P.P.S. I also may try to write it myself (maybe too slow :) ).

  17. DJMC says:

    Hi Chris,
    Just downloaded this app to tune my E flat Alto Saxophone. The notes are different, presumably as this is default set to piano? But I note you say “It is designed to be very easy to use and to tune your instrument (guitar, ukelele, violin, bass, cello, mandolin, piano, harp, saxophone……..)”. I also note you say “DaTuner wasn’t written to support custom instruments”. Which is it please? In other words, is there a way I CAN alter the settings so that a A on my sax equates to an A on the tuner?
    Many thanks for any help (and easy to follow instructions please!). David

    • Chris says:


      Thanks for the question!

      When I stated that DaTuner wasn’t written to support custom instruments, I meant that it doesn’t support custom note lists, like the 6 strings of a guitar. I am working on that but my time outside of work is quite short.

      However, there is a setting for transposition, which is what you are looking for. Just transpose E-A, and you’re done!

      Cheers, Chris

  18. Eduard says:


    This tuner is absolutely the best, Big thanks for it!
    I learning to play Indian classical music on Sarod and found that it will be great to add Indian classical music Sargam notation. This Sargam main notes are: SaReGaMaPaDhaNiSa or DoReMiFaSolLaTiDo in west music. Minor notes calls Komal (or “k”), major calls Tivra (or “t”).
    For example Raga Malkauns (http://en.wikipedia.org/wiki/Malkaush) have this notes:
    Sa, Ga(k), Ma, Dha(k), Ni(k), Sa
    Do, Mi(minor), Fa, La(minor), Ti(minor), Do in western notation

    I will be happy if you can implement it :-)

  19. bob_piper says:

    Hi Chris,

    I like DaTuner (Lite) and plan on donating for the full edition. I was wondering if, in the custom temperaments, there is a Highland Bagpipe scale? We tune with the F# 15 cents flat and both the low and high G at 30 cents flat.

    Is writing a custom temperament something that can be done via a text editor?


  20. AlfChamings says:

    DaTuner Pro does have a bagpipe scale in the alternative temperaments and it works very well. The ability to set the frequency of the tonic is also very useful: it allows you first to measure the frequency of your low A and then to set low A on DaTuner to whatever it is. Most modern chanters will probably be tuned to the scale set in the DaTuner bagpipe setting but older chanters will have a sharper high G and perhaps a sharper D, corresponding to the research done by Seamas MacNeill in the 1950s of the tuning of chanters at that time. I was surprised that my chanter low A is quite high – between 466 and 473 (depending on the reed) even though it is 30 years old. It does have a sharper high G than the DaTuner scale but I put tape over it because I like the modern flatter high G. Get the Pro version – it’s definitely worth it!

  21. ErnstMueller says:

    Hi all,
    maybe I’m a little bloody – I just bought “DaTuner Pro” and I need tuning temperaments like Valotti, meantone and Werkmeister…
    So, cann anybody tell me how I can get these temperaments on my device?

    Thanks a lot

    • Chris says:

      Hi Ernst,

      Sorry for the delay (almost a month!) but there is a spreadsheet that is created when DaTuner Pro is started up that contains all of the temperaments. I believe meantone and Werkmeister are there, but I am not so sure about Valotti. If it isn’t there, you can create it yourself by manually editing the spreadsheet to create it. Also, I am currently on a break from work and will shortly start working on adding new features and fixing bugs in DaTuner again. The new version (in beta) supports temperaments with different settings for each octave as well as custom instruments via an .xml file.

  22. Chridman says:

    Dear Chris

    Have been using DaTuner Pro for a long time on my android and it’s great.
    Broke my old phone and got new Samsung S5. Downloaded DaTuner but there is no way of accessing settings!
    Read on this site about aggressive task killer problem. Took the task killer away, reinstalled DaTuner but still there is no settings button or bar (or whatever it is, I can’t remember now as I haven’t needed it since setting my preferences a long time ago). There is only the long-press options.

    Please help!

  23. bromberg says:

    Apologies for a very basic question but please explain what the number next to the note refers to; e.g., when you state E4 in your guitar tuning section, what exactly does the 4 refer to?

    Also, can your app be used to transcribe a solo guitar tune or do the notes sound too quickly to create an accurate transcription in a reasonable way?

    Thanks, and looking forward to upgrading to the pro version after I fully understand the basics.



    • Chris says:

      The 4 is for the octave of the note. Stock settings are for tuning, not capturing quick notes. With some tweaks to the settings, namely averaging time, it could probably capture a solo.

      Regards, Chris

  24. tkjtkj says:

    Great app ! and will be especially appreciated by Pedal Steel Guitar players, who must tune our 10 string instruments in a complicated ‘temperment’ fashion
    using ‘cents’ ..
    What the hell, i’ll give you the ‘cents’ here that we’d need your tuner to manage:

    Name of this standard tuning .. thE most common: E9
    String: Note ‘Cents’ lower (-) or higher (+) :
    1 F# +4

    2 Eb -10

    3 G# -11

    4 E 0

    5 B 0

    6 G# -11

    7 F# -15

    8 E 0

    9 D 0

    10 B 0

    There is another much less used ‘standard’ tuning called: C6
    of which i know nothing about, really.

    If this instrument’s tuning is not as above, it can sound TERRIBLE!

    Hope this can facilitate your developing additional instruments!

  25. tkjtkj says:

    In my comment above, notice that the 3rd string is the ‘highest’ note , Unlike
    a normal guitar .. This is NOT an error ;)

    Would also be nice if yur ‘comment editor’ here preserved additional spaces
    so that my data above would appear in ‘column’ form …

    oh well, maybe this geezer is too dumb to figure that out …

    but thankyou for this opportunity!

  26. tkjtkj says:

    Please add these ‘Pedal’ / “KneeLever” abilities too:

    Pedal A : C# -17

    Pedal B: A -7

    Pedal C: F# -22 and C# -17

    KneeLever : Eb -10
    (Many units have 4 or more KneeLevers , and maybe 6+ pedals !! ..)

    And yes, this machine can be a B***H to tune … !!

    Ref: Jeff Newman <= the 'God' of PSG tuning :

  27. Chridman says:

    Wrote message May 11. Still have not received reply. Very disappointed that developer of Datuner has not fixed bug with samsung s5! Since changing phone i have completely lost the menu! Why can I not get in touch directly with developer. I have paid the fee for Datuner Pro and I think I deserve to get the proper working version!!!!

    • Chris says:

      Hi Chridman,

      Sorry it took so long to reply. I didn’t see the message here on WordPress right away. I’m back however, and have a fix for your problem. The beta version of DaTuner Pro is up and has access to the settings menu via a long press on the main screen. The fix is sort of a kluge for now but I hope to implement a more modern interface shortly.

      To get the beta, please go to https://plus.google.com/communities/115093137218069178065 and join the community. Then visit the play store and opt in to the beta version.

      Sorry again!

      Regards, Chris

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