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