go-audio

Description

This is an application for recording and editing audio using the ffmpeg library. Additionally, it can convert text to audio in different languages.

CLI Options

Flag	Default	Environment Variable	Description
--help, -h			show help
--debug	false	OPEN_AUDIO_DEBUG	Debug mode
-p, --play	false	OPEN_AUDIO_PLAY	play audio file in default player
-e, --encode	false	OPEN_AUDIO_ENCODE	encode audio file with custom codec, bitrate and format
-t, --tts	false	OPEN_AUDIO_TTS	Option to generate text to speech
--record	false	OPEN_AUDIO_RECORD	record audio from microphone or board
-o, --output	audio	OPEN_AUDIO_OUTPUT	output file directory
-d, --duration	5	OPEN_AUDIO_DURATION	duration of recording in seconds
-r, --sample-rate	44100	OPEN_AUDIO_SAMPLE_RATE	sample rate to use for recording audio
-c, --channels	2	OPEN_AUDIO_CHANNELS	number of channels to use for recording audio
--device	microphone	OPEN_AUDIO_DEVICE	device to record from, available devices: microphone, board
-f, --frames-per-buffer	64	OPEN_AUDIO_FRAMES_PER_BUFFER	frames per buffer for recording audio
-s, --sentence	Hello!	OPEN_AUDIO_SENTENCE	input text to encode to speech
-l, --language	en	OPEN_AUDIO_LANGUAGE	language to use for text to speech, available languages: en, es, pt, fr, it, ru, de
-i, --input-file		OPEN_AUDIO_INPUT_FILE	input file to encode
--log_format	txt	OPEN_AUDIO_LOG_FORMAT	log format, available formats: txt, json
--codec	pcm_s16le	OPEN_AUDIO_CODEC	codec to use for audio file, example codecs: pcm_s16le, pcm_s24le
--bitrate	128k	OPEN_AUDIO_BITRATE	bitrate to use for audio file, example bitrates: 128k, 256k, 512k
--format	wav	OPEN_AUDIO_FORMAT	format to use for audio file, example formats: wav, mp3, ogg
--file-name	recording	OPEN_AUDIO_FILE_NAME	file name to use for audio file

Requirements

sudo apt install portaudio19-dev

brew install ffmpeg       # macOS
sudo apt-get install ffmpeg  # Linux

go mod tidy

Run

go run cmd/main.go

Build

make build

Examples

./build/go_audio -t -p -l "en" -s "How are you?"

./build/go_audio -t -p -l "es" -s "¿En que puedo ayudarte?"

./build/go_audio -t -p -l "pt" -s "Muito longe, no entanto, que a estrada é muito longa."

./build/go_audio -t -p --format "mp3" --codec "libmp3lame" -i "audio/file_name_to_mp3.wav" -e

Test

make test