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Looks very nice, would you tell us a little bit about what you used to build this? I am just getting started with Rust and it would be cool to hear what approac

Looks very nice, would you tell us a little bit about what you used to build this? I am just getting started with Rust and it would be cool to hear what approach you went and what you would recommend when starting today.

zduny 4y ago
Flutter for the UI. Rust for the listening, and pitch detecting backend. Connected the former with the latter using flutter_rust_bridge. More details on Rust backend: For listening (getting audio signal from microphone) I used: - Android: https://crates.io/crates/oboe https://crates.io/crates/oboe - native desktop/iOS (not currently released): https://crates.io/crates/clap https://crates.io/crates/clap - Web: https://crates.io/crates/web-sys https://crates.io/crates/web-sys (so basically JS Web Audio API called from Rust compiled to WASM). For pitch detection: - https://crates.io/crates/pitch-detection https://crates.io/crates/pitch-detection
- bobajeff 4y ago
  >Flutter for the UI. Rust for the listening, and pitch detecting backend. Connected the former with the latter using flutter_rust_bridge. It's good to see that there is a active project to help with making Android apps using rust.
- frr149 4y ago
  Why not just dart?
  - mkss 4y ago
    Dart being a GC'd runtime makes it quite hard to use for low latency audio applications, probably not as critical for audio input as output, but still potential issue, for more details see: https://github.com/dart-lang/sdk/issues/46943 https://github.com/dart-lang/sdk/issues/46943
    - pjmlp 4y ago
      Then why bother with Flutter at all?
      - zduny 4y ago
        It's amazing for UI (and portable). Rust - not so much (or more like not at all) at the moment.
        pjmlp 4y ago
        And has a GC running all the time, including when the called Rust code is executing, making it pointless to avoid using Dart in first place.
- audio_stuff 4y ago
  Awesome, thanks!
- sodality2 4y ago
  > - native desktop/iOS (not currently released): https://crates.io/crates/clap https://crates.io/crates/clap I hope you didn't use a command line parser to stream audio...
  - zduny 4y ago
    I meant https://github.com/RustAudio/cpal https://github.com/RustAudio/cpal (should've checked).
    - sodality2 4y ago
      Haha, no worries :) "clap" does indeed sound audio-related, and "clap" is only one transposition from "cpal"!
      - audio_stuff 4y ago
        "clap" IS actually audio related too https://github.com/free-audio/clap https://github.com/free-audio/clap :)
      - zduny 4y ago
        Heh, I always get those two crates names confused, even now, rereading comments I again thought it was "clap" and not "cpal" (because "clap" like in "clapping").

zduny 4y ago

Flutter for the UI. Rust for the listening, and pitch detecting backend. Connected the former with the latter using flutter_rust_bridge. More details on Rust backend: For listening (getting audio signal from microphone) I used: - Android: https://crates.io/crates/oboe https://crates.io/crates/oboe - native desktop/iOS (not currently released): https://crates.io/crates/clap https://crates.io/crates/clap - Web: https://crates.io/crates/web-sys https://crates.io/crates/web-sys (so basically JS Web Audio API called from Rust compiled to WASM). For pitch detection: - https://crates.io/crates/pitch-detection https://crates.io/crates/pitch-detection

bobajeff 4y ago
>Flutter for the UI. Rust for the listening, and pitch detecting backend. Connected the former with the latter using flutter_rust_bridge. It's good to see that there is a active project to help with making Android apps using rust.
frr149 4y ago
Why not just dart?
- mkss 4y ago
  Dart being a GC'd runtime makes it quite hard to use for low latency audio applications, probably not as critical for audio input as output, but still potential issue, for more details see: https://github.com/dart-lang/sdk/issues/46943 https://github.com/dart-lang/sdk/issues/46943
  - pjmlp 4y ago
    Then why bother with Flutter at all?
    - zduny 4y ago
      It's amazing for UI (and portable). Rust - not so much (or more like not at all) at the moment.
      - pjmlp 4y ago
        And has a GC running all the time, including when the called Rust code is executing, making it pointless to avoid using Dart in first place.
audio_stuff 4y ago
Awesome, thanks!
sodality2 4y ago
> - native desktop/iOS (not currently released): https://crates.io/crates/clap https://crates.io/crates/clap I hope you didn't use a command line parser to stream audio...
- zduny 4y ago
  I meant https://github.com/RustAudio/cpal https://github.com/RustAudio/cpal (should've checked).
  - sodality2 4y ago
    Haha, no worries :) "clap" does indeed sound audio-related, and "clap" is only one transposition from "cpal"!
    - audio_stuff 4y ago
      "clap" IS actually audio related too https://github.com/free-audio/clap https://github.com/free-audio/clap :)
    - zduny 4y ago
      Heh, I always get those two crates names confused, even now, rereading comments I again thought it was "clap" and not "cpal" (because "clap" like in "clapping").