Function arrayBufferToBase64

apps/sim/lib/speech/audio.ts:18–25

(buffer: ArrayBuffer)

 * Encode an ArrayBuffer as a base64 string for WebSocket transport.
 */
export function arrayBufferToBase64(buffer: ArrayBuffer): string {
  const bytes = new Uint8Array(buffer)
  let binary = ''
  for (let i = 0; i < bytes.length; i++) {
    binary += String.fromCharCode(bytes[i])
  }
  return btoa(binary)
}