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RTC Solutions

Audio Call

Ultra-low latency voice calls with noise suppression and Opus codec.

Voice calls seem simple until you deal with echo cancellation, packet loss concealment, and codec negotiation across devices. Gravix Cloud handles the audio engineering so your users get crystal-clear voice every time.

How It Works

1

Initialize Audio

Create an audio call session with the SDK. Configure codec, bitrate, and noise suppression.

2

Connect Participants

Participants join with their microphone. The SFU mixes and routes audio efficiently.

3

AI Enhancement

Real-time AI noise suppression and echo cancellation ensure studio-quality audio.

4

Record & Transcribe

Optionally record calls and generate transcripts in 50+ languages.

Key Features

Opus Codec

High-fidelity audio with adaptive bitrate from 6kbps to 510kbps.

Noise Suppression

AI-powered noise cancellation for clear voice in any environment.

Echo Cancellation

Built-in AEC prevents echo and feedback loops.

Voice Activity Detection

Smart VAD detects speech and auto-adjusts to save bandwidth.

Hold & Transfer

Park calls, transfer to another participant, or queue callers.

Call Recording

Record audio calls with optional transcription.

Get Started in Minutes

import Gravix from '@gravix/cloud-js';

const gravix = new Gravix('gvx_live_your_key');
const call = await gravix.audio.createCall({
  name: 'support-call',
  recording: true,
  transcription: true,
});
await gravix.audio.join(call.id, { audio: true });
console.log('Audio call connected');

Performance Specs

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Avg. Latency
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Codec Bitrate
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Max Participants
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Uptime SLA

Available on the Starter Plan

Audio calls are available on all plans, starting at $1 per 2,000 minutes.

View Pricing

Frequently Asked Questions

We use the Opus codec with adaptive bitrate, supporting both narrowband and fullband audio.

Yes, cloud recording is available on Professional and above. Transcription is available as an add-on.

PSTN integration is available on Enterprise plans. Contact sales for details.

Our AI model runs on the client side using WebAudio API, removing background noise in real-time.

Ready to build on Gravix Cloud?

Start with 2,000 free minutes. Ship your first call in under an hour.