Vinyl Stream and Record

Description

A way to record audio and stream it over HTTP Live Streaming (HLS). For use on Linux systems, with planned support for other systems in the future.

Minimum Hardware Requirements

• 1 GB RAM (Likely less is needed)
• 1 GB of storage (enough for a full day of uninterupted recording)
• ??? CPU
• Audio Input
• Audio Output (Optional: For Monitoring)
• A Network interface (for streaming unneeded for recording)

See: Tested Systems

Dependencies

• ALSA
• Bun
• ffmpeg

Installation

Install all needed external dependencies, and ensure your desired audio interface is the default ALSA input and output.

Install bun/node dependencies:

bun install

Make record_vinyl_stream executable:

chmod +x record_vinyl_stream

Running

bun run start

Starts a server on port 7474

Options

If you'd like to change the default behavior of the record_vinyl_stream script run

bun run index.ts & ./record_vinyl_stream [options]

available options

-n: filename

Set the filename of the recorded file. Defaults to "stream"

-e: extension

Set the extension of the recorded file. Defaults to "flac". Note: Make sure you have a codec installed for the target extension

-l: location

Set the location of the recorded file. Don't touch will break things. TODO: Decouple recorded file location from HLS stream files

-p: playback

Boolean. Playback audio to default device audio output. Defaults to true.

Tested Systems

SBC	RAM	Storage	Audio Interface	Total Cost	Supported
Raspberry Pi 4B	1GB	4GB	IQAudio Codec Zero	$50 USD	Yes
Radxa Zero 3W	2GB	4GB	1-2 ESP32s	$32 USD	Planned
Radxa Zero 3W	2GB	4GB	IQAudio Codec Zero	$34 USD	Planned