Cobra VAD — Rust Quick Start

Platforms

• Linux (x86_64)
• macOS (x86_64, arm64)
• Windows (x86_64)
• BeagleBone
• NVIDIA Jetson Nano
• Raspberry Pi (Zero, 2, 3, 4)

Requirements

• Picovoice Account & AccessKey
• Rust 1.54+
• Cargo

Picovoice Account & AccessKey

Signup or Login to Picovoice Console to get your AccessKey. Make sure to keep your AccessKey secret.

Quick Start

Setup

1. Download and install Rust .

2. Add pv_cobra to the Cargo.toml manifest:

[dependencies]
pv_cobra = "*"

Usage

Create an instance of the Cobra VAD engine:

use cobra::Cobra;

let cobra = Cobra::new("${ACCESS_KEY}");

Pass in frames of audio to the .process function:

fn next_audio_frame() -> Vec<i16> {
    // get audio frame
}

loop {
    if let Ok(voice_probability) = cobra.process(&next_audio_frame()) {
        // ...
    }
}

Demo

For the Cobra Rust SDK, we offer demo applications that demonstrate how to use the VAD engine on real-time audio streams (i.e. microphone input) and audio files.

Setup

Clone the Cobra repository from GitHub using HTTPS:

git clone --recurse-submodules https://github.com/Picovoice/cobra.git

Usage

Use the --help flag to see the usage options for the demo:

cobra/demo/rust/micdemo
cargo run --release -- --help

Run the following command to detect voice activity:

cargo run --release -- --access_key ${ACCESS_KEY}

For more information on our Cobra demos for Rust, head over to our GitHub repository .

Resources