How to get a better sound on flute

Why a flute sounds airy, and how air direction, a smaller lip opening, alignment, steady air, and long tones fix it.
BT
Band TrainerWritten for band students, by a band director

A good flute sound is clear and steady, with a center you can hear. Most young flutists start with a sound that's airy: more breath than tone. That's normal, and you can fix it. It almost always comes from where your air goes and the size of the opening in your lips, not from blowing harder.

Why does my flute sound airy?

An airy sound means some of your air is missing the edge of the embouchure hole. That air turns into hiss instead of tone. The most common causes:

  • The opening in your lips is too big. Extra air spills past the edge. Make the opening smaller.
  • Your lips are stretched. Smiling makes the opening wide and flat. Relax the corners.
Lips, from the front
✓ Small and relaxed
A small oval in the middle.
Opening too big
Extra air spills past the edge.
Lips stretched
Smiling makes a wide, flat opening.
  • Your bottom lip covers too little of the hole. Try covering a little more, about a quarter to a third.
Bottom lip on the hole, from above
✓ Covers ¼ to ⅓
Your bottom lip covers the near part of the hole.
Covers too little
Too much of the hole is open, so the sound spreads.
  • The air is aimed too low or too high. Air aimed too far into the hole sounds dull and hollow. Air aimed too far across the hole sounds thin and hissy.
  • You're blowing too hard. More air doesn't make more tone. The extra air just becomes hiss.
Air, from the end of the headjoint
✓ Splits on the edge
Some air goes in, some goes over.
Aimed too low
Bottom lip pulled back: dull and hollow.
Aimed too high
Bottom lip pushed forward: thin and hissy.
Blowing too hard
The extra air turns into hiss.
  • The headjoint is out of line. If it's turned too far in or out, the edge isn't where your air is going.
Headjoint, from above
✓ Lined up
The hole lines up with the keys.
Turned out of line
The edge isn't where your air goes.

Find your center. Hold a long B. While you hold it, move your jaw and bottom lip very slightly forward, then back. Listen for the spot where the hiss drops away and the sound gets fuller. That's the aim you want. Do this with your lips, not by rolling the flute.

Airstream direction

The air should hit the far edge of the embouchure hole and split there. Small changes in aim make a big difference.

  • Bring your jaw and bottom lip forward to aim the air a little higher, across the hole.
  • Bring your jaw and bottom lip back to aim the air a little lower, into the hole.
  • Low notes usually need the air aimed a little lower, and high notes a little higher.
  • Don't roll the flute to aim. Rolling it in or out changes the tone and pitch. Keep the flute still and move your lips.
✓ Hole facing up
Your lips do the aiming.
Rolled in
Your lip covers too much of the hole. The sound is dull and goes flat.
Rolled out
The air skips over the edge. The sound is airy and goes sharp.
Seen from the end of the headjoint, with you on the left. Rolling the flute moves the hole instead of your air. Keep the hole facing up and aim with your lips.

The opening in your lips

The opening in your lips, called the aperture, controls how focused your air is. A smaller opening makes a thinner, faster stream of air that hits the edge cleanly.

Aperturesmall oval, centeredLips touchat the sidesCorners relaxednot pulled back
A small oval in the middle of your lips, about the size of a grain of rice. Check yours in a mirror.
  • Start small. Say "pu" and leave just a small oval opening in the middle. "Pu" only sets the shape. Start notes with your tongue.
  • Keep the corners relaxed, not pulled back and not pinched tight.
  • Change the size for the register. The opening gets a little smaller for high notes and a little bigger for low notes.
  • Check in a mirror. Many players' openings sit slightly off center. That's fine if the sound is clear.

Headjoint alignment

Line up the center of the embouchure hole with the center of the keys on the body. Your teacher may have you turn it in very slightly. Check it every time you put the flute together, and again if your sound suddenly changes. The headjoint can twist while you play.

Middle of the holeMiddle of the keysHeadjointBodyTwist here to line it up
Seen from above, with the keys facing up. The headjoint is drawn shorter to fit. The dashed line runs through the middle of the embouchure hole and the middle of the keys.

How far the headjoint is pulled out changes the tuning, not the tone. See the tuner for how to adjust it.

Steady air

Your air keeps the sound going. If the air speeds up and slows down, the tone and pitch wobble with it.

  • Breathe in low. Your belly and sides should expand. Your shoulders stay down.
  • Blow a steady stream, the same speed from the start of the note to the end.
  • Don't let the end sag. Notes often get airy at the end as air runs low. Breathe before you run out.
  • Steady, not forced. Keep the air moving with your body, not by squeezing your lips or throat.

Long tones

A long tone is one note held for a long time with a steady, clear sound. Long tones give you time to listen and adjust your aim and opening. They are the best way to build your sound.

Tap a note to hear it
BB♭AA♭G
Long tones going down by half steps from B. Hold each note for 8 slow counts, then rest for 8.
  • New to A♭? Finger G and add your left pinky on the G♯ key. See the flute fingering chart.
  • Start each note gently with "too" or "doo." The start should be clean, not a burst.
  • Keep the sound the same from start to end. No wobbles and no fading out.
  • Play at a comfortable medium volume first. Once that sounds clear, try the same notes softly.
  • Play with a drone on the same note, or watch the tuner. A steady needle means steady air.

Notes that sound weak or won't speak

The problemLikely causeTry this
Low notes are weak or won't come outOpening too small, air too fast, or a finger not coveringLet the opening get a little bigger, use slower air aimed slightly lower, and check every finger.
High notes crack or won't come outOpening too big, or air aimed too lowMake the opening smaller and bring your lips slightly forward. Don't blow harder.
Middle D or E♭ is weak or unsteadyLeft index finger downLift your left index finger. See the flute fingering chart.
A note jumps to the octave aboveAir too fast for that noteRelax the opening a little and slow the air.
Only certain notes are fuzzyA finger not fully on its key, or a leaking padPress each key all the way down. If it keeps happening, ask your teacher to check the flute.
Notes get airy toward the endRunning out of air, or the opening spreadingBreathe sooner and keep the corners steady.

A 10-minute tone routine

  • 1 minute: breathing. In for 4 counts, out for 8, with steady air.
  • 2 minutes: headjoint only. Open end and covered end, listening for a clear center.
  • 4 minutes: the long tones above, with a drone or tuner.
  • 1 minute: find your center on B, moving your aim slightly until the hiss drops away.
  • 2 minutes: play a song you know, softly, with your best sound.

Then use Play the Note in Woodwind Trainer. Hold each note for a moment before moving on. The microphone checks the pitch, and you practice a clean, centered start on every note.

Practice thisWoodwind Trainer: keys and tone holes
Practice in Woodwind Trainer