isBrowserAsrSupported (src/index.ts)

Browser ASR utilities that detect support, create recognizers, and transcribe audio, with typed interfaces and error handling.

// Source: https://github.com/HBAI-Ltd/Toonflow-app | License: MIT | Copyright 2026 HBAI-Ltd
// Provided via justclaw.it.com; keep this notice with the code.
export type BrowserAsrState = "idle" | "starting" | "listening" | "stopping" | "destroyed";

export interface BrowserAsrResult {
  text: string;
  finalText: string;
  interimText: string;
}

export interface BrowserAsrError {
  code: string;
  message: string;
}

export interface BrowserAsrOptions {
  lang?: string;
  continuous?: boolean;
  interimResults?: boolean;
  onStateChange?: (state: BrowserAsrState) => void;
  onResult?: (result: BrowserAsrResult) => void;
  onError?: (error: BrowserAsrError) => void;
}

export type BrowserAudioAsrOptions = {
  lang?: string;
  signal?: AbortSignal;
};

interface BrowserRecognition {
  lang

... (truncated -- full source via MCP)