Features

Female musician in red sequined outfit playing an acoustic guitar and singing into a microphone during an online streaming event with on-screen indicators for 3,000 viewers, chat functions, latency under 1 second, and online music jamming.

Interactive Streaming 🔥

We develop interactive live streaming software that connects hundreds of thousands of viewers with sub-second latency, synchronized metadata, chat, and real-time interactions. We built Worldcast Live (10,000+ concurrent viewers) and Sprii (live video shopping with real-time audience participation).

Orange icons for YouTube, Twitch, Instagram, and Vimeo on a light gray background.

Automatic Video Transcoding

We build automated video transcoding pipelines using FFmpeg and cloud encoding services to convert between formats (HLS, DASH, RTMP, WebM) and optimize for adaptive bitrate streaming. We implemented transcoding for Worldcast Live and TradeCaster (46K+ users).

Text box with timestamp 01:20:35 containing a physics lecture note and buttons labeled Translate and AI Summarize.

Effects & Filters

We develop real-time video effects including brightness, contrast, and saturation adjustment, artistic filters, AR overlays, and animated visual effects. We built Super Power FX (500K+ downloads, 4.6★ rating) and Anime Power FX (1M+ downloads) with real-time AR effects on user videos.

Notification with a clock icon stating Ann Scott's stream starts in 5 minutes.

Notifications & Scheduling

We implement event scheduling, streaming timetables, calendar integration, and real-time push notifications for upcoming shows and live sessions. We built scheduling systems for Bellicon Home (530+ workout videos with scheduled live classes) and BrainCert (lesson booking for virtual classrooms).

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Monetization

We develop subscription plans, pay-per-view, tipping, and ad-based monetization with Stripe, PayPal, and in-app purchase integration. We built monetization for TradeCaster (46K+ users, $550K verified profits), Perspire (Twitch-style fitness subscriptions), and Tapereal (creator content monetization).

Audio quality 🎶

Clear Sound: Choosing the Right Audio Codec and Settings

In WebRTC, developers choose an audio codec optimized for the content type. Voice codecs prioritize clarity, while music codecs preserve the full frequency range. We recommend Opus for the best sound quality and lowest latency – Mozilla thinks so too.

However, simply choosing Opus isn't enough. By default, WebRTC applies voice optimization (AGC, noise suppression, echo cancellation) that degrades music quality. We disable these filters and fine-tune Opus parameters for full-spectrum audio reproduction. For real-time music jamming, we need to make three adjustments:

Disable background noise removal: this feature distorts music sound.
Increase bitrate: standard voice call bitrate is ~40 kb/s, but high-fidelity music streaming needs at least 128 kb/s for rich, detailed sound. Opus supports up to 510 kb/s – so we increase the bitrate.
Switch from mono to stereo: increase the number of audio channels from 1 to 2.

Two women singing, one wearing headphones in a recording studio and the other holding a microphone against a green background.

Video call grid showing four people: a man monitoring multiple screens, a woman with a violin and keyboard, a woman singing into a studio microphone, and a man speaking into a microphone wearing headphones.

Synchronization ⏱️

Why not make music online with friends and strangers in any video chat? Grab a guitar, call a drummer, add a pianist — and play together in real time. Standard video calls can't do this because the participants' audio isn't perfectly synchronized. While minor delays are fine for conversation, real-time music collaboration requires subsecond audio sync across all participants.

We develop video streaming solutions specifically for musicians to play together, learn and teach, and hold concerts.

Illustration showing three separate audio waveforms with guitar, microphone, and drum icons merging into a single combined waveform with all three icons above it.

Sync for listeners

Each musician produces an audio track. Our software marks these tracks, recognizes the delays for each one, and syncs them into one audio file on the server. This synced file is then streamed to the audience.

But if this happens afterward on the server, how can the musicians perform together? They need to hear each other in sync to play together.

Three horizontal audio waveforms in orange with icons of a drum, guitar, and microphone on a white background.

Sync for the musicians

We achieve synchronization for musicians by calibrating audio tracks through a step-by-step process. First, we measure the delay by sending a signal from one node and tracking how long it takes to reach another. Then, we sync the tracks by adjusting the timing — for example, when a drummer starts playing, their audio is sent to the guitarist. When the guitarist begins, both tracks are sent to the singer, with the precise delay added to keep the drummer’s track in sync. This cascading calibration continues with each new musician hearing only the previous ones, ensuring perfectly synchronized playback for the entire group. We built this real-time audio sync engine for iMind.com (music jamming platform) and applied similar WebRTC calibration techniques in ProVideoMeeting.

Real-time streaming 🚀

Jam online with no latency

Subsecond latency is standard in video chats; otherwise, conversations would be impossible. For video broadcasts to thousands of viewers, a few seconds of latency is typical. However, when jamming online with other musicians via video chat, latency must be subsecond — even if thousands are watching. We achieved sub-200ms latency for iMind.com and Worldcast Live. Read how we achieve this in the article.

Real-time monitoring to prevent latency: Internet connection, sound card, audio output

Monitor the audio quality of each musician in real time with a color-coded indicator: green for optimal, yellow for acceptable, and red for unacceptable. Quality parameters include internet connection speed, sound card latency, and audio output level — giving musicians instant feedback to troubleshoot issues.

For example, if a participant has a slow internet connection, the audio streaming won't be in real time, making low-latency music collaboration impossible. A red indicator tells them exactly what to fix. We implemented this monitoring dashboard for iMind.com and applied similar real-time diagnostics in ProVideoMeeting and BrainCert.

Video call grid with four participants, one playing violin, one in a control room, one singing, and one at a microphone, showing an internet connection lost warning and network status details.

Woman wearing headphones and speaking into a microphone while working on a laptop, surrounded by icons for YouTube, Instagram, LinkedIn, and Twitch.

Multistreaming

We build multistreaming solutions that broadcast a single video stream to multiple platforms simultaneously — Facebook Live, Instagram, TikTok, Twitch, YouTube, LinkedIn, and custom RTMP destinations. Features include logo watermarking, per-platform quality settings, and stream health monitoring. We implemented multistreaming for Alve Live (live streaming platform with private sessions and multi-destination broadcasting).

AI-Powered features 🎼

AI-Powered Video Quality Optimization

We integrate AI/ML for real-time video quality optimization — adaptive bitrate encoding, bandwidth-aware compression, and super-resolution upscaling for smoother streaming on poor networks. We applied AI video optimization for V.A.L.T (video surveillance SaaS serving 650+ US organizations) and MindBox (AI-powered incident detection system).

AI-Enabled Automated Captioning and Translation

We develop AI-powered captioning and real-time translation that automatically generates subtitles for live streams and translates audio into multiple languages. We built this for TransLinguist (multi-language interpretation for hospitals and courts) and VOLO (AI voice translation with natural intonation for live events).

Side-by-side image showing a woman in a purple suit in front of the Mona Lisa painting with the left half pixelated and the right half clear, labeled 'Video quality improved.'

Split image showing pixelated low-quality side and clear high-quality side of a woman wearing cat-ear headphones gaming with a controller.

Shazam-like music recognition

We built FRP — a "Shazam for professional DJs" that identifies tracks from a library of 720,000+ licensed songs in real time. The system recognizes songs, tracks play counts, and manages collections. FRP is used by DJs worldwide for instant track identification during live sets.

AI-Based Content Moderation

We implement AI-powered content moderation that detects and filters inappropriate content in real time using computer vision and NLP. Our moderation systems handle text chat, video streams, and user-uploaded media. We built content moderation for Ariuum (live video debate platform with audience voting) and VocalViews (video-based market research marketplace).

AI-Powered Recommendations and Dynamic Playlist Generation

We build AI recommendation engines that analyze listening behavior, preferences, and social signals to generate personalized playlists and content suggestions. We developed personalized content recommendations for Sonar (social music discovery platform with Spotify and Apple Music integration) and Scholarly (AWS-awarded EdTech with AI-driven learning paths).

Listeners can ask for personalized playlists using voice commands to specify genres, BPM, artists, and more. Our AI processes these requests, searches through the database, and creates tailored playlists that seamlessly blend algorithms with human preferences. The system ensures accuracy and relevance by responding within a defined context.

Five TV show posters including Gilmore Girls, Gossip Girl, Westworld, Doctor Who, and Black Mirror with a speech bubble saying, 'Jessica, these are personalized offers for you!'

Split image showing a close-up of a woman wearing cat-ear headphones and holding a game controller, with the left side pixelated and the right side clear emphasizing improved streaming quality.

Virtual and Augmented Reality Integration

We integrate VR/AR features for immersive music experiences — virtual concert venues, 3D spatial audio, real-time avatar animation, and AR overlays on live streams. We built AR experiences for UniMerse (Pokémon Go-style augmented reality for events) and Super Power FX (real-time AR visual effects with 500K+ downloads).

AI-powered auto-notation

For music education platforms, we developed AI auto-notation that converts live playing into sheet music, guitar tabs, or MIDI in real time. Combined with smart scoring for instant performance feedback. We built similar AI-powered learning tools for ALDA (AI assistant for course development) and Scholarly (interactive e-learning platform awarded by AWS).

Connect professional musical equipment 🎸

Output: sound cards and audio interfaces

For professional-grade audio output, connect a sound card or an audio interface (Focusrite, PreSonus, Universal Audio). We display a real-time volume meter showing the output level, so musicians can optimize their monitoring setup. We integrated professional audio interface support for iMind.com and similar hardware connectivity for ProVideoMeeting.

Input: professional microphones, musical instruments, and amplifiers

For sound input, connect a guitar, keyboard, or other electronic instruments directly to the video conference via audio interface. Alternatively, connect the instrument to an amplifier and then route the signal into the conference. A real-time input signal level monitor ensures optimal gain staging. We built this instrument connectivity for iMind.com, supporting MIDI controllers, electric guitars, and synthesizers.

Audio session settings interface showing Scarlett Focusrite input with volume gain indicators, Build-In Speaker output, and a proceed button.

Professional tools for musicians 🥁

Horizontal slider with orange progress bar halfway between labels 'Band' and 'Me'.

Crossfader

Adjust the volumes of different audio channels with a professional crossfader. Make your instrument louder than the call, balance them equally, or prioritize the call over your instrument. Mute individual channels instantly. We built this DJ-style audio mixing interface for iMind.com, enabling musicians to control their personal monitor mix during live jam sessions.

View the volume settings for each instrument in the music jam over the internet. The range can be from -12 dB to +12 dB, adjustable in 1 dB steps.

Equalizer

Use a 10-band parametric equalizer with sliders for specific frequency ranges: 32 Hz, 64 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, and 16 kHz. Fine-tune your sound including volume, noise reduction, and proximity effects. Save custom EQ presets and apply them across sessions. We implemented this audio EQ system for iMind.com with preset management and real-time frequency visualization.

Metronome

Add a shared metronome with adjustable BPM to keep all musicians synchronized during online jam sessions. The click track plays locally with zero latency, ensuring tight timing across all participants. We built this collaborative metronome for iMind.com with tap tempo detection and BPM presets for common time signatures.

Two smartphone screens showing a music-themed chat app with a violin player on one screen and a band performing on the other, displaying private and group chat messages.

Communication tools 💬

Direct messages

The conductor or group coordinator can give real-time audio feedback to individual musicians during live performances without disrupting others — push-to-talk with per-musician targeting. We implemented similar directed communication for ProVideoMeeting (host controls with per-participant messaging) and Video Interpretations (interpreter-to-participant private channels).

Text chat

Live audience chat with text messages, emojis, images, and file sharing. Participants can view the member list, send private messages, and react to performances in real time. We built in-stream chat for Nucleus (on-premise Slack alternative), TransLinguist, and dozens of other real-time communication platforms.

Recording 📼

Record live concerts, rehearsals, and lessons for on-demand playback. Our recording solutions support cloud storage with configurable retention, multi-track audio capture, and automatic post-processing. We built cloud recording for iMind.com (recordings kept 30 days on free plan, unlimited on premium) and Worldcast Live (full concert archiving for 10K+ viewer events).

Female singer in leather pants holding a microphone with three band members playing keyboard, guitar, and bass in a dimly lit studio.

Custom Music Software Development — Live Streaming, Online Jamming & Audio Tools

Music platforms used by major labels and pro musicians

WorldCastLive