Microsoft Copilot for Windows vs AsyncAI Voice API

Comparing the features of Microsoft Copilot for Windows to AsyncAI Voice API

Feature
Microsoft Copilot for Windows
AsyncAI Voice API

Capability Features

Advanced Speech Features
emotional inflectionrhythm controlmultilingual support
API Access
API Sample Rate Support
44100
API Streaming
Audio AI Features
end-to-end editingnoise cancellationAI-powered refinement
Automatic Conversation End
Chime Notification
Comprehensive Documentation
Copilot Voice Floating UI
Copilot Wake Word
Creative Suite Tools
PodcastingVideo AIAudio AIVoice AI
Feedback Mechanism
Hands-Free Voice Activation
Infinite Voice Styles
Infinite
Lifelike Text-to-Speech
Low Latency
Manual Conversation End
Mic Usage Indicator
On-Device Wake Word Detection
Podcasting Features
audio enhancementnoise reductionvoice conversion
Quick Implementation
<10 minutes
Supported Language List
20+
Supported Use Cases
Customer ServiceGame DevelopmentDigital MarketingDigital PublishingPatient CommunicationConversion OptimizationConversational AI / AgentsGlobal ReachDigital Humans / AI AvatarsSupply ChainTalent AcquisitionInclusive Design
Uptime and Reliability
Video AI Features
intelligent video editingautomatic captioningvisual enhancement
Voice AI Tools
text-to-speechvoice cloning
Voice Cloning
Voice Cloning Sample Duration
3
Voice Library
1000
Voice Model Version
asyncFlow v1.0
Voice Output Emotional Styles
ExcitedNeutralWarm

Integration Features

API Implementation Languages
PythonJavaScriptcURL
API Output File Formats
WAVraw PCM (pcm_f32le)
Microsoft Store Update
Platform Integrations
APIPythonJavaScriptcURL

Limitation Features

API Key Integration
Feature Not Default
Internet Required for Voice Responses
No Local Audio Storage
No Pricing Information
No Usage Quotas Stated
Requires PC Unlocked
Version Requirement
1.25051.10.0 or higher
Wake Word Only in English
English only
Windows Insider Availability
Insiders only

Pricing Features

Developer-friendly Pricing
Developer-friendly
Free Tier