How to Build a Voice - Based Feedback Collection Tool?

Introduction

VoiceForm is a modern, voice-first feedback collection platform built through iterative development with Emergent. Starting from a simple concept, we evolved it into a production-ready application with voice recording, AI transcription, conditional logic, and a polished UI inspired by modern SaaS design.

Final Tech Stack:

• Frontend: React 18, Tailwind CSS, shadcn/ui components
• Backend: FastAPI (Python), Motor (async MongoDB driver)
• Database: MongoDB
• AI Integration: OpenAI Whisper via Emergent LLM key
• Voice Recording: MediaRecorder API with real-time audio visualization
• Drag & Drop: @hello-pangea/dnd (after troubleshooting React 18 compatibility)

Problem Statement and Proposed Solution

Our Vision

We wanted to solve a common problem with traditional feedback forms:

Problems with Current Forms:

• Typing long responses is tedious and time-consuming
• Users abandon forms due to fatigue
• Mobile typing is especially frustrating
• Rich context and tone are lost in text

The Proposed Solution:

A Typeform-like platform where users simply speak their answers instead of typing. Key requirements:

• Seamless voice recording interface
• Interactive visualizer showing audio input
• Landing page highlighting ease of use
• No more typing long answers - just speak and move on

Learning Outcomes

What Was Actually Built Through This Process:

1. Requirement Gathering: Learning to ask the right clarifying questions before coding
2. AI Service Integration: Working with OpenAI Whisper through integration playbooks via Emergent
3. UI/UX Design: Translating design references into production code
4. Edge Case Handling: Dealing with transcription quirks and boundary conditions

Step 0: Prerequisites

What We Had

• Access to Emergent platform (FastAPI + React + MongoDB stack pre-configured)
• Basic project structure with problem statement idea

What Was Needed

• Emergent LLM key (for OpenAI Whisper - agent managed this)
• Understanding of desired features
• Design reference for UI improvements

Step 1: Initial Prompt and Requirement Gathering

Our First Message

I want to build a feedback collection or form making platform where people can just answer via voice. Seamless UI like typeform, interactive visualiser for our voice input.
 
Landing page should show off the ease of use - no more typing out long answers for user feedback or a long form - just attach voice answers for each question and move on with your day.

Agent's Response: Clarification Questions

"Before I start building, I need to clarify a few details:

1. Voice-to-Text Integration - Which provider would you prefer? • OpenAI Whisper (latest model) • Google Speech-to-Text • Other preference?
2. Core Features - What functionality do you need? • Form builder (create questions, configure forms) • Response collection & viewing • Form sharing (unique links) • Analytics/insights dashboard
3. Voice Experience - What should happen with voice recordings? • Convert to text only (transcription) • Store audio + text • Play back audio recordings
4. Authentication - Do you need user accounts? • Yes, for form creators • No authentication needed (simple/open)
5. API Keys - Should I use Emergent LLM key for OpenAI integrations?"

Our Answers

1. OpenAI Whisper
2. All of them as well as the form link to try out as a responder
3. Play back audio and show transcript to form creator
4. Yes for form creators
5. Use Emergent LLM

Step 2: UI Improvement Request

Our Request

Improve the landing page and overall app UI on the basis of reference attached

We provided:

Photo Credit: Dribble

Agent's Analysis of Reference

Agent analyzed the reference image and identified:

• Light pastel backgrounds with vibrant accent
• Larger, bolder headlines with yellow highlights
• Generous whitespace
• Bright pill-shaped CTAs (not purple gradients)
• Before/After comparison sections
• Card-based feature layouts
• Professional yet playful tone

Implementation: Complete UI Redesign

• Landing Page Changes
• New Sections Added
• Dashboard Improvements

Step 3: First Major Bug - Audio Playback

Our Report

During testing through preview, we noticed that the audio does not work. Here's what we got as an error popup:

1. In responses, audio playback failed.

Uncaught runtime errors: ERROR - Failed to load because no supported source was found.

Agent's Response

Created dedicated endpoint under /api prefix

Step 4: Feature Request - Enhanced Question Types

Our Request

2. Add more question types in form builder - with options, conditional branching.

Agent's Response

Updated backend and added question types

Common Issues

This app may run into issues as outlined above during testing, and that is why previewing the app is so important before you launch. For every issue, try to:

1. Describe the issue as you see it to the agent; what part of the app is it breaking?

2. Take a screenshot of the issue and highlight the section in question

3. Press F12 and consult the Console and Network tabs - if you see any errors marked in red, flag them to the agent

Deploying Your App

Now that your app is ready, you should deploy it and keep it as always accessible via our dedicated hosting. Here's the steps in brief:

Preview Your App

• Click Preview in the Emergent interface.
• Test UI, responsiveness, interactivity, and functionality.
• Fix any errors using the agent if needed.

Run Pre-Deployment Health Check

• Use Emergent’s automated readiness checker.
• Review and resolve any flagged issues before deployment.

Deploy the Application

• Click Deploy, then Deploy Now.
• Wait for deployment to finish (typically ~15 minutes).
• Emergent provides a publicly accessible production URL once complete.

Wrapping Up

And that's it! You now have an AI enabled, voice based feedback collection tool with a detailed form builder as well as conditional branching of questions. However, there's more to be done. Here are some enhancements you can apply to this app to take it to the next level:

• Dashboard with charts (completion rates, average time)
• Question-level analytics (skip rates, response length)
• Export responses to CSV/PDF
• Webhook integration for real-time notifications
• Form templates library
• Team collaboration (share forms with team members)

Check out a preview of our finished app down below:

We can't wait to see what you build. Share your creations with the community on X or Discord.