That B♭4 in your piece—too thin when you "think soprano," too stuck when you bring in chest voice. You're not doing it wrong. Your voice isn't difficult. You're an alto, and you need both acoustic strategies.

In Part 3 of our Formant Formula series, we explore what makes the alto voice acoustically unique: the requirement to use singer's formant projection in the lower range AND F1:F0 tuning in the upper range—and to blend them smoothly through the critical transition zone where most alto repertoire lives.

We cover:

• Why altos are "acoustically bilingual"
• The A4-D5 transition zone and why it feels unstable
• What research reveals about how successful altos navigate this zone
• Why your teacher's advice might seem contradictory
• Vowel-specific strategies (why /a/ is easier than /i/ or /u/)
• Common alto problems and their acoustic solutions
• Practical exercises for developing the gradual blend

If you've ever felt caught between soprano technique and something closer to how lower voices work, this episode explains why—and what to do about it.

📧 Free daily voice science lessons: www.voicescience.org/free

Presented by Drew Williams-Orozco

Written by Josh Manuel