Leopard Speech-to-Text
Go Quick Start

Platforms

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

Requirements

• Picovoice Account & AccessKey
• Go 1.16+
• Windows only: a gcc compiler like Mingw in $PATH

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 Go language .

2. Install the Leopard Go Package using the Go CLI:

go get github.com/Picovoice/leopard/binding/go

Usage

Create an instance of the Leopard engine:

import . "github.com/Picovoice/leopard/binding/go"

leopard = NewLeopard("${ACCESS_KEY}") // AccessKey provided by Picovoice Console (https://console.picovoice.ai/)
err := leopard.Init()
if err != nil {
    // handle err init
}
defer leopard.Delete()

Transcribe an audio file:

transcript, words, err := leopard.ProcessFile("${AUDIO_FILE_PATH}")
if err != nil {
    // handle process error
}

When done be sure to explicitly release the resources using leopard.Delete().

Demo

For the Leopard Go SDK, we offer demo applications that demonstrate how to use the Speech-to-Text engine on audio files.

Setup

Clone the Leopard repository from GitHub using HTTPS:

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

Usage

To see the usage options for the demos, use the -h flag:

cd leopard/demo/go
go run filedemo/leopard_file_demo.go -h

Run the following command to transcribe an audio file:

go run filedemo/leopard_file_demo.go -access_key "${ACCESS_KEY}" -input_audio_path "${AUDIO_PATH}"

For more information on our Leopard demos for Go, head over to our GitHub repository .

Language Model

The Leopard Go SDK comes preloaded with a default English language model (.pv file). Default models for other supported languages can be found in the Leopard GitHub repository .

Create custom language models using the Picovoice Console . Here you can train language models with custom vocabulary and boost words in the existing vocabulary.

Pass in the .pv file by setting .ModelPath on an instance of Leopard before initializing:

leopard := NewLeopard("${ACCESS_KEY}")
leopard.ModelPath = "${MODEL_PATH}"
err := leopard.Init()

Resources