Technical Features
AI-Powered Noise Reduction
Polly uses advanced deep learning algorithms including DeepFilterNet3 and RNNoise
to intelligently remove background noise from your recordings. Whether it's traffic noise, air conditioning hum,
keyboard clicks, or room echo, Polly's AI identifies and eliminates unwanted sounds while preserving the natural
quality of your voice. Perfect for home studio recordings, podcast editing, and improving audio quality for
professional content creation.
Voice Enhancement & Isolation
Our voice enhancement technology improves speech clarity and intelligibility by optimizing frequency response,
reducing sibilance, and enhancing vocal presence. The voice isolation feature separates vocals from background
music and ambient noise, making it ideal for extracting clear dialogue from complex audio mixes. This is
particularly useful for video editors, content creators, and anyone working with interview recordings or
multi-track audio.
Loudness Normalization Standards
Polly implements industry-standard loudness normalization following EBU R128 and
ATSC A/85 specifications. This ensures your audio meets the requirements for major platforms
including Spotify (-14 LUFS), YouTube (-13 to -15 LUFS), Apple Podcasts (-16 LUFS), and broadcast television.
Automatic loudness matching prevents viewer fatigue and ensures consistent audio levels across your entire
content library.
Real-Time Processing Performance
With processing speeds up to 77× faster than realtime, Polly can enhance a 5-minute audio
file in just 4 seconds. Most audio files are processed in under 60 seconds, making it one of the fastest
audio enhancement tools available. This speed is achieved through optimized C++ implementation, efficient
DSP algorithms, and optional GPU acceleration for supported systems.
Use Cases & Applications
Podcast Production
Professional podcasters use Polly to achieve broadcast-quality audio without expensive recording equipment.
Remove room echo, reduce background noise from home recordings, normalize loudness for consistent playback
across episodes, and enhance voice clarity for better listener engagement. Supports batch processing for
multiple episodes and integrates seamlessly into professional podcast workflows.
YouTube Content Creation
YouTubers and video creators rely on Polly to improve audio quality in tutorial videos, vlogs, interviews,
and educational content. Clean audio significantly improves viewer retention and watch time. Polly helps you
meet YouTube's audio quality standards, reduce viewer complaints about audio issues, and create professional-
sounding content that stands out from the competition.
Music & Audio Production
Musicians and producers use Polly for cleaning up demo recordings, removing noise from field recordings,
isolating vocals for remixing, and preparing audio for mastering. While not a replacement for professional
studio equipment, Polly provides excellent results for home studio recordings, mobile recordings, and
quick audio cleanup tasks during the production process.
Business & Education
Corporate trainers, educators, and business professionals use Polly to enhance webinar recordings, online
course content, presentation audio, and video conference recordings. Improve the clarity of important
meetings, make training materials more professional, and ensure your message is heard clearly by your audience.
Perfect for remote work scenarios where recording conditions aren't always ideal.
Supported Audio Formats
Polly supports all major audio formats for both input and output, ensuring compatibility with your existing
workflow and tools:
- WAV - Uncompressed audio, highest quality
- MP3 - Universal compatibility, good compression
- FLAC - Lossless compression, audiophile choice
- M4A/AAC - Apple ecosystem, efficient encoding
- OGG Vorbis - Open-source alternative
- OPUS - Modern codec, excellent for speech
Supports both mono and stereo recordings with sample rates from 8kHz to 192kHz. Automatically handles bit
depth conversion (16-bit, 24-bit, 32-bit float) and sample rate conversion as needed.
Get Started
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