Aiola Streaming & TTS App

Overview

AiolaStreamingApp is an iOS application that enables real-time audio streaming and playback using Aiola's Live Streaming API. It provides a seamless experience for users to interact with audio streams, including text-to-speech (TTS) integration and audio player functionalities.

Features

• Live audio streaming to Aiola's backend
• Text-to-speech (TTS) conversion and playback
• Audio player for streamed content
• Swift-based architecture optimized for performance

Installation

Prerequisites

• macOS with Xcode installed
• iOS device or Simulator running iOS 14+
• Active Aiola API credentials

Steps

1. Clone the repository:

   git clone https://github.com/aiola-lab/aiola-swift-app.git
   cd AiolaStreamingApp

2. Open the project in Xcode:

   open AiolaStreamingApp.xcodeproj

3. Install the Aiola Swift SDK:

   git clone https://github.com/aiola-lab/aiola-swift-sdk.git
   
   swift package add https://github.com/aiola-lab/aiola-swift-sdk

4. Configure API keys and backend URL in AudioStreamingManager.swift
5. Build and run the app on a Simulator or iOS device

Usage

1. Launch the Aiola Streaming App on your iOS device.
2. Navigate to the Live Streaming section to start an audio stream.
3. Use the TTS View to convert text to speech.
4. Access the Audio Player to play back stored streams.

Configuration

Modify AudioStreamingManager.swift to configure API endpoints and authentication:

import AiolaSwiftSDK

let bearerToken = "<your-bearer-token>" \\ The Bearer token, obtained upon registration with Aiola
        
let config = StreamingConfig(
        endpoint: "<your-base-url>, \\ The URL of the Aiola server
        authType: "Bearer",
        authCredentials: ["token": bearerToken],
        flowId: "<your-flow-id>", \\ One of the IDs from the flows created for the user
        executionId: "1009",
        langCode: "en_US",
        timeZone: "UTC",
        namespace: "/events", \\ Namespace for subscription: /transcript (for transcription) or /events (for transcription + LLM solution)
        transports: "websocket" \\Communication method: 'websocket' for L4 or 'polling' for L7
    )

...

  
  // ✅ Update UI when socket connects
  func onConnect() {
      DispatchQueue.main.async {
          self.isConnected = true
      }
      print("✅ Connection established")
      // Add your code
  }
  
  // ✅ Update UI when socket disconnects
  func onDisconnect(connectionDuration: TimeInterval, totalAudioSentDuration: TimeInterval) {
      DispatchQueue.main.async {
          self.isConnected = false
      }
      print("❌ Connection closed. Duration: \(connectionDuration)ms, Total audio: \(totalAudioSentDuration)ms")
     // Add your code
  }
  
  func onTranscript(data: Any) {
      if let transcriptArray = data as? [[String: String]],
         let transcript = transcriptArray.first?["transcript"] {
          
          let newEvent = AudioEvent(type: "📝 Transcript",
                                    content: transcript)
          
          DispatchQueue.main.async {
              self.addEvent(newEvent)
          }
         // Add your code
      }
  }
    
    func onEvents(data: Any) {
        if let eventArray = data as? [[String: Any]],
           let results = eventArray.first?["results"] as? [String: Any],
           let maskedQuery = results["masked_query"] as? String {
            
            let newEvent = AudioEvent(type: "📢 Event",
                                      content: maskedQuery)
            
            DispatchQueue.main.async {
                self.addEvent(newEvent)
            }
          // Add your code
        }
    }
    
    func onError(error: String) {
        print("⚠️ Error occurred: \(error)")
        // Add your code
    }

---

Modify TTSView.swift to configure API endpoints and authentication:

import AiolaSwiftSDK

private let ttsClient = AiolaTTSClient(baseUrl: "<your-base-url>/api/tts", bearerToken: "<your-bearer-token>")