Subvocal Raises $1.3M Pre-Seed for Silent Speech Wearable Murmur

Subvocal Secures $1.3M Pre-Seed

The Subvocal Company, a San Francisco hard-tech startup, has raised $1.3 million in pre-seed funding. Investors in the round include Afore Capital and Y Combinator.

What Subvocal Is Building

Subvocal is developing Murmur, a discreet under-chin wearable. The device decodes silently mouthed speech into text and computer commands.

The technical approach relies on muscle-sensing electrodes and real-time biosignal decoding. According to the company, the system requires no audible voice, involves minimal visible movement, and uses no microphone or camera.

Team and Origins

Subvocal was founded in 2026 by Georgia Tech computer science students Aarush Yadav (CEO) and Arnav Kumar (CTO). The pair built their first prototype at the Stanford TreeHacks hackathon.

The company is part of the Y Combinator Fall 2026 batch.

From Prototype to Product

Subvocal is working to turn its prototypes into a consumer product. Early integrations target macOS, with support for Slack, Gmail, Calendar, and Notes.

The company has stated plans to open pre-orders in the coming months.

Round Details

• Company: The Subvocal Company
• Product: Murmur
• Round type: Pre-Seed
• Amount: $1,300,000 USD
• Date: September 24, 2026
• Investors: Afore Capital, Y Combinator
• Headquarters: San Francisco

Why Silent Input Matters

Input methods for computing have largely depended on physical contact — keyboards, touchscreens — or on voice, which requires audible speech and typically a microphone. Subvocal's approach targets a different modality: capturing the muscle signals associated with silently mouthed words and converting them into text and commands.

If it works as described, the form factor — an under-chin wearable — would allow input without audible voice and with minimal visible movement, and without the microphone or camera that voice- and vision-based interfaces rely on. The company's early macOS integrations suggest an initial focus on desktop productivity workflows, including messaging, email, calendaring, and note-taking.

What's Next

Subvocal's stated near-term milestones are the transition from prototype to consumer product and the opening of pre-orders in the coming months. The pre-seed funding follows the company's participation in the Y Combinator Fall 2026 batch.