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Fastest way to identify the root note of a sample?

annahahnannahahn
in General App Discussion

I am downloading a bunch of tonal percussive samples, glasses being hit with forks etc

Most of these samples are not labeled as to what their root note is

I would like to load these samples into chameleon and play them on a keyboard

What is the fastest tool on iOS for identifying the root note of a sample? Is it auv3/live input based OR a stand alone app where you import the sample and it tells you the root note?

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Comments

  • lazyasslazyass
    edited April 2020

    +1 interested here

  • DwvjcDwvjc

    1+

  • aleyasaleyas
    edited April 2020

    Audiostretch by Cognosonic visualizes harmonic content on a keyboard above the corresponding notes, including overtones. The keyboard is functional too, with a simple tone to test against the harmonics. One of the most essential utility apps that I own. It still gets regular updates, even after many years.

    Regarding your question, you can open audio files directly to the app. As you can see in the picture below, the root note of this metal hit sample is G with strong overtones 1 and 2 octaves up.

    Look into it, it's fantastic.

    https://apps.apple.com/vn/app/audiostretch/id571863178

  • klownshedklownshed
    edited April 2020

    You could also use a tuner...

    There’s one in GarageBand which will work just fine (access it via the amp simulator). It will read out the pitch and show you how far off from the closest note the sample is so you can adjust the pitch in your sampler to get it bang on if you like.

  • ajmillerajmiller

    Sing the pitch and then check on a keyboard/piano?

  • robosardinerobosardine

    @ajmiller said:
    Sing the pitch and then check on a keyboard/piano?

    Is that a football song?

  • TimRussellTimRussell
    edited April 2020

    @klownshed said:
    You could also use a tuner...

    There’s one in GarageBand which will work just fine (access it via the amp simulator). It will read out the pitch and show you how far off from the closest note the sample is so you can adjust the pitch in your sampler to get it bang on if you like.

    I think the problem with these kinds of samples is that they are predominant in harmonics, with the fundamental being very quiet. Tuners usually rely on a strong fundamental so would be interesting to know if this works.
    Otherwise that Audiostretch looks like the ticket.
    Personally I’d just play the sample alongside individual notes on a piano or guitar and use whatever sounded best. Very time-consuming though if you have lots of samples!

  • klownshedklownshed
    edited April 2020

    @TimRussell said:

    @klownshed said:
    You could also use a tuner...

    There’s one in GarageBand which will work just fine (access it via the amp simulator). It will read out the pitch and show you how far off from the closest note the sample is so you can adjust the pitch in your sampler to get it bang on if you like.

    I think the problem with these kinds of samples is that they are predominant in harmonics, with the fundamental being very quiet. Tuners usually rely on a strong fundamental so would be interesting to know if this works.
    Otherwise that Audiostretch looks like the ticket.
    Personally I’d just play the sample alongside individual notes on a piano or guitar and use whatever sounded best. Very time-consuming though if you have lots of samples!

    Yeah if the fundamental isn’t the loudest (which for ‘normal’ notes it is usually perceived as such) then tune by ear. If it sounds right it’s right.

    If there is a dominant fundamental then the tuner will find it. If it doesn’t chances are it doesn’t need tuning as it’s overall timbre isn’t tonal. Most of the time you can use the same drum kit for any key (though people do obviously like to tune drums it’s not exactly necessary as such).

    However I’d say most things like “glasses being hit with forks” will definitely have a dominant fundamental.

  • tehskwrltehskwrl

    The Snail and Magic Eye are both interesting frequency viewers.

  • PoppadocrockPoppadocrock

    I use a tuner on my iPhone and loop the sample on my iPad

  • PoppadocrockPoppadocrock

    Its not perfect but usually gets me there.

    Also 4 pockets has an AUv3 Analyser & Tuner app that you can just plug in your FX chain in a host.

  • PoppadocrockPoppadocrock

    Does Audiostretch light allow for this function?

  • SNystromSNystrom

    LIMITATIONS OF LITE VERSION:

    • Max song duration 3 minutes (full version 3 hours)
    • Speed range from -1.5x to 1.5x (full version -10x to +10x)
    • Pitch shift +/- 3 semitones (full version +/- 36 semitones)

  • GavinskiGavinski

    @Poppadocrock it does, yes. Though because it shows harmonics, it is not that useful perhaps. To be honest I think the fastest and most reliable way will always be to sing the main note yourself into a free tuner app on your iPad or phone, or as mentioned, just sing the note and find it on a keyboard. The 4 pockets tuner also flits about a lot, it is next to useless for this task in most cases where u have any kind of complex patch.

  • McDMcD
    edited April 2020

    Audiolayer detects pitch and lets you quickly test it with a keyboard. It also lets you add mini-pitch adjustments in it's FX section. It's ideal for making Fork-o-phones and Fart-a-round generators (the sounds are real but the critical odors require additional hardware or persons).

    Go get 'em.

  • auxmuxauxmux

    @McD said:
    Audiolayer detects pitch and lets you quickly test it with a keyboard. It also lets you add mini-pitch adjustments in it's FX section.

    Yup, AudioLayer is best and easiest option. So helpful for samples.

  • McDMcD

    @auxmux said:

    @McD said:
    Audiolayer detects pitch and lets you quickly test it with a keyboard. It also lets you add mini-pitch adjustments in it's FX section.

    Yup, AudioLayer is best and easiest option. So helpful for samples.

    It's the atomic bomb of the sampling art but doesn't do slice detection or other essential "sampler' shit.
    So it's either the best or a waste of your time and money. Like any great app. I hope this clarifies the muddy pool of advice.

  • supadomsupadom

    Fire up any synth then try to find the key. I know might be too advanced for some. 🤣

  • rs2000rs2000

    Sometimes you have hundreds of samples and tagging them manually isn't really an option.
    For anybody who owns a Mac, Homebrew has the "aubio" commandline audio file feature detector that can help detect pitch, bpm, onset location times etc.
    I would aubio detect pitch and bpm and write these directly into the file name or sort files into folders by bpm, for example.

    From the manual:

            NAME
          aubio - a command line tool to extract information from sound files

        SYNOPSIS

          aubio [-h] [-V] <command> ...

        COMMANDS

          The general syntax is "aubio <command> <soundfile> [options]". The following
          commands are available:

          onset        get onset times
          pitch        extract fundamental frequency
          beat         get locations of beats
          tempo        get overall tempo in bpm
          notes        get midi-like notes
          mfcc         extract mel-frequency cepstrum coefficients
          melbands     extract mel-frequency energies per band

          For a list of available commands, use "aubio -h".
  • McDMcD

    @rs2000 said:
    For anybody who owns a Mac, Homebrew has the "aubio" commandline audio file feature detector that can help detect pitch, bpm, onset location times etc.

    Bored developer... use this "audio" code and make an IOS app, please. Let's take the "labor" out of IOS
    and just "have an app for that".

  • Samflash3Samflash3

    @McD said:

    @rs2000 said:
    For anybody who owns a Mac, Homebrew has the "aubio" commandline audio file feature detector that can help detect pitch, bpm, onset location times etc.

    Bored developer... use this "audio" code and make an IOS app, please. Let's take the "labor" out of IOS
    and just "have an app for that".

    I'm bored...but not that bored. Also, I don't have a Mac (lol...cries in Catalina)

  • waka_xwaka_x

    Aubio
    is also windows and all platforms!
    incl ios.

    "iOS
    The following binary contains a directory called aubio.framework. Simply drag and drop this directory in the frameworks of your iOS XCode project, and it will be ready to use aubio.

    The framework contains a fat binary for both iOS and iOS Simulator."

    https://aubio.org/download

  • waka_xwaka_x

    also try SV:
    https://www.sonicvisualiser.org/
    or Audacity

    with vamp plugs:
    https://www.vamp-plugins.org/

    all free.
    both platforms.

  • auxmuxauxmux

    @waka_x said:
    Aubio
    is also windows and all platforms!
    incl ios.

    "iOS
    The following binary contains a directory called aubio.framework. Simply drag and drop this directory in the frameworks of your iOS XCode project, and it will be ready to use aubio.

    The framework contains a fat binary for both iOS and iOS Simulator."

    https://aubio.org/download

    Can some intrepid soul do this? Having a bulk renamer and tagger with this feature would be huge.

  • McDMcD

    @auxmux said:

    @waka_x said:
    Aubio
    is also windows and all platforms!
    incl ios.

    "iOS
    The following binary contains a directory called aubio.framework. Simply drag and drop this directory in the frameworks of your iOS XCode project, and it will be ready to use aubio.

    The framework contains a fat binary for both iOS and iOS Simulator."

    https://aubio.org/download

    Can some intrepid soul do this? Having a bulk renamer and tagger with this feature would be huge.

    People would buy the app.

  • palmspalms
    edited April 2020

    the ear is still the best tool for this afaik, but I would pay good money for a tool that would accurately detect pitch and repitch any samples to a desired pitch quantization.

    I've got mountains of old samples that are not properly tuned and it's very tedious to tune them manually.

  • FatPuddingFatPudding

    I used to use a programme on my PC that would batch scan was files, find the frequency and then resample the sound to the nearest C (or any note you wanted). I wish somebody would make something like this for the iPad

  • senhorlampadasenhorlampada

    Caustic 3's Wave Editor is awesome for this...

    If you have a PC, download Caustic for free and try it :tongue:

  • king_picadilloking_picadillo

    https://apps.apple.com/us/app/musa-rt/id506866959

    Credit to @Poppadocrock for finding. I know the pitch detection thing comes up a lot so I though I’d repost in this thread. This app looks really interesting, it detects pitch and chords.

  • PoppadocrockPoppadocrock

    @king_picadillo said:
    https://apps.apple.com/us/app/musa-rt/id506866959

    Credit to @Poppadocrock for finding. I know the pitch detection thing comes up a lot so I though I’d repost in this thread. This app looks really interesting, it detects pitch and chords.

    Thanks @king_picadillo for putting this in its right place.

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