Vocal Straw Exercises: 12 Free SOVT Warm-Ups from OOVO

A free training resource from the makers of the OOVO Vocal Straw Necklace, the precision SOVT tool used by Grammy winners, Broadway leads, voice coaches, and speakers who rely on their voice for a living.

The exercises on this page are universal. You can do every one of them with a paper coffee straw, a stirrer, or any narrow tube you have nearby. They are based on Semi-Occluded Vocal Tract (SOVT) training, the technique popularized by voice scientist Dr. Ingo Titze and used in studios and conservatories around the world. Straw phonation balances the air pressure above and below your vocal folds, which lets you train hard with less impact and helps reset a tired voice between takes, classes, or shows.

The exercises work better when the resistance is right. Too narrow and you strain. Too wide and there is nothing to push against. The OOVO Straw is engineered to a 3mm interior diameter (the size most teachers recommend) and worn as a necklace so it is on you when you need it. More on that below. First, the work.

New to vocal straw exercises? Start here. For your first week, work through these three Easy-tier exercises in order, one 5-minute session per day:

  1. Easy Single Note — learn the sensation of phonation through a straw.
  2. Morning Wake Up — build a simple daily warm-up.
  3. Happiest Person Ever — if you speak or sing, this one trains everyday inflection.

Once those feel natural, explore the rest of the library at your own pace. Working singers and pros: jump anywhere.

Before you begin: use it safely

Use light, sustained airflow. SOVT exercises should never feel like maximum effort — the device only reflects the pressure you put through it. If you have to push hard, ease off. Stop and rest if you feel lightheaded, dizzy, short of breath, or any vocal pain. Consult your physician before starting if you have a heart, lung, or vocal condition, recent surgery, or are pregnant. These exercises are vocal training, not medical treatment. See our full safety guidelines.

Set Your Goals

  • Practice in 5-minute sessions, up to 5 times per day.
  • Use a session whenever you feel vocal strain or need a quick reset between rehearsals, calls, or sets.
  • Train safely by balancing air pressure in the vocal tract while you exercise.
  • Pick exercises that match your goal: expanding range, smoothing a break, building stamina, or warming up before speaking.

Before You Start

  • Breathe in normally through your mouth or nose. Do not breathe in through the straw.
  • Bring the straw to your lips and sing through it. Air should flow only through the straw, not through your nose. Pinch your nose to test your form.
  • Relax your face, jaw, and neck. It is fine if your cheeks puff out.
  • Clean your straw regularly. The OOVO Straw ships with a care kit for this reason.
  • That is all the setup you need. Let's begin.

The 12 Exercises

Work through a variety of these each day, focusing on the goals that matter most to you. Each exercise includes a short demo video.

Easy

1. Easy Single Note

What it does: Establishes the basic feel of phonation through a straw. Do this when: You are brand new to SOVT and want to learn the sensation, or you need the simplest possible reset. How to: Pick one comfortable note in the middle of your range. Sing it through the straw on a steady breath. That is the whole exercise.

2. Morning Wake Up

What it does: Wakes up the voice gently, especially if you feel hoarse on rising. Do this when: First thing in the morning, before a meeting, or after a long silent stretch. How to: Breathe out through the straw without making a sound. Then add your voice on a comfortable mid-range note. Alternate sound off and sound on within a single long exhale.

3. Bumps In The Road

What it does: Re-engages dynamic control and helps mend a tired voice. Do this when: You are feeling vocally flat, or before a set that demands quick volume changes. How to: Pick two close pitches. Sing quiet-LOUD-quiet-LOUD between them, like a car going over speed bumps. Stay through the straw the whole time.

4. Happiest Person Ever

What it does: Warms up the speaking voice across natural inflection. Do this when: Before a podcast, presentation, audition, or long teaching day. No musical background required. How to: Speak high in your speaking register through the straw, vocalizing positive phrases with real enthusiasm: “What a great day,” “I love vocal warm-ups.” Let the pitch move naturally.

Doing these with a paper straw? You'll get more from precise 3mm resistance. Meet the OOVO Vocal Straw Necklace: a precision-engineered SOVT tool in jewelry-grade sterling silver, gold vermeil, or rose gold vermeil, designed to be worn, not lost. For four resistance levels in one device and a smaller form factor, the Sing Ring by OOVO is $49 in solid brass.

Intermediate

5. Sing It Out

What it does: Builds vocal muscle memory on real repertoire and trains the belt. Do this when: You are working a tough phrase, building toward a big moment in a song, or want a karaoke-grade workout. How to: Pick a song you love or know cold. Sing it fully through the straw. Go big. When in doubt, your national anthem works.

6. Hills

What it does: Develops smooth pitch transitions and breath connection. Do this when: You feel pitchy on rising lines or want to integrate registration shifts. How to: Imagine a car switching gears and revving over a hill. Sing rising and falling phrases through the straw, accelerating into the top of each phrase and easing down the other side.

7. Over The Top Laughter

What it does: Safely warms up the highest part of your range. Do this when: You need access to head voice or whistle without the pressure of “singing it pretty.” How to: Laugh through the straw, climbing higher and higher in pitch. Yes, it sounds funny. That is the point.

8. Scales & Stretches

What it does: Expands range and reinforces breath support across modes. Do this when: You want a structured workout that targets agility and air management. How to: Run scales through the straw: major, minor, whole tone, blues, anything. Keep the muscles relaxed and all the air flowing through the straw, not the nose.

Advanced

9. Arpeggios

What it does: Trains evenness across your full range using broken chords. Do this when: You want to take SOVT into wider intervals and longer phrases. How to: Pick an arpeggio (a chord played as individual notes) and sing it through the straw across one or more octaves. Repeat in different keys.

10. Sirens

What it does: Smooths the bridge between registers and softens vocal breaks. Do this when: You feel a crack or jump on the way through your passaggio. How to: Glide low to high to low through the straw, like a fire truck siren. Stay smooth, stay connected, no scoops or stops.

11. On/Off Vibrato Sustain

What it does: Builds conscious control over vibrato. Do this when: You want to choose vibrato as a stylistic decision instead of a default. How to: Sustain a note through the straw. Start straight-tone, add vibrato, take it off, add it back. Repeat in different parts of your range.

12. Messa Di Voce D'OOVO

What it does: Trains dynamic control and the mix transition. Italian for “placement of voice.” Do this when: You want classical-grade control over crescendo and decrescendo on a single note. How to: Take a comfortable breath. Sing one long note through the straw, starting soft, growing to full voice, then easing back to soft. Begin on a low, easy note. When that feels solid, work up the scale. This one is hard. Expect to grow into it.

Get the Full Exercise Guide

Want a printable PDF and a curated video playlist of all 12 exercises, plus warm-up routines tailored for singers and speakers? Sign up for our newsletter on the homepage and we'll send the guide along with occasional notes from our team of voice coaches. No spam. Unsubscribe anytime.

Why a Real SOVT Tool Matters

You can absolutely start with a paper straw, and you should, today. But the difference you feel when you upgrade to a precision-built SOVT tool is real. The OOVO Vocal Straw Necklace is engineered to a 3mm internal diameter, the size most often referenced in vocal-science literature for adult singers and speakers. It's crafted in jewelry-grade sterling silver, gold vermeil, or rose gold vermeil, individually hand-crafted, and built into a necklace so it's with you when warm-up time arrives in the green room, the rehearsal hall, or the back of an Uber on the way to set.

Frequently Asked Questions

What is straw phonation?

Straw phonation is a vocal exercise technique in which you sing or speak through a narrow straw or tube. Partially blocking the vocal tract creates back-pressure that balances the forces above and below your vocal folds, which lets you train without forcing. It is one form of Semi-Occluded Vocal Tract (SOVT) training.

How long should I do straw exercises?

Practice in 5-minute sessions, up to 5 times per day. Short, frequent sessions tend to outperform one long session, especially when you are warming up, recovering between performances, or rebuilding stamina.

Can I use any straw?

Yes. The exercises on this page work with any narrow straw, including paper coffee straws and cocktail stirrers. The technique is what matters first. Once you are comfortable with the feel of straw phonation, a purpose-built tool like the OOVO Straw gives you consistent 3mm resistance, durability, and a form factor designed to be carried.

What size straw is best?

Most adult singers and speakers do well with an internal diameter around 3mm. Wider straws give too little resistance to feel the SOVT effect; narrower straws (or fully sealed lips) increase strain. The OOVO Straw is built to 3mm. The OOVO Sing Ring offers a slightly different resistance profile in a ring form.

Can I do straw exercises if I am not a singer?

Yes. Public speakers, teachers, podcasters, broadcasters, voice actors, and anyone who uses their voice for hours a day benefit from SOVT warm-ups and resets. Exercises 2 and 4 (Morning Wake Up, Happiest Person Ever) are tuned to the speaking voice.

How soon will I notice a difference?

Many people report feeling a clearer, more connected voice within a single 5-minute session. Long-term improvements in range, stamina, and recovery typically come from consistent daily practice over a few weeks. Treat it like any other physical training: small, regular reps beat occasional marathons.

OOVO is a vocal training tool. The exercises on this page are educational and are not medical advice. If you have persistent vocal pain, hoarseness, or any voice concern, consult a qualified ENT or speech-language pathologist.