Error in AudioRecorder control example

[nascin]

Duplicate Check

• I have searched the opened issues and there are no duplicates

Describe the bug

When I run the example code and start recording the audio, the event takes a while to occur. When I click stop, it feels like recording has started. Finally, several error messages and depreciation warnings.

Code sample

Code

import flet as ft

async def main(page: ft.Page):
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
    page.appbar = ft.AppBar(title=ft.Text("Audio Recorder"), center_title=True)

    path = "test-audio-file.wav"

    async def handle_start_recording(e):
        print(f"StartRecording: {path}")
        await audio_rec.start_recording_async(path)

    async def handle_stop_recording(e):
        output_path = await audio_rec.stop_recording_async()
        print(f"StopRecording: {output_path}")
        if page.web and output_path is not None:
            await page.launch_url_async(output_path)

    async def handle_list_devices(e):
        devices = await audio_rec.get_input_devices_async()
        print(devices)

    async def handle_has_permission(e):
        try:
            print(f"HasPermission: {await audio_rec.has_permission_async()}")
        except Exception as e:
            print(e)

    async def handle_pause(e):
        print(f"isRecording: {await audio_rec.is_recording_async()}")
        if await audio_rec.is_recording_async():
            await audio_rec.pause_recording_async()

    async def handle_resume(e):
        print(f"isPaused: {await audio_rec.is_paused_async()}")
        if await audio_rec.is_paused_async():
            await audio_rec.resume_recording_async()

    async def handle_audio_encoding_test(e):
        for i in list(ft.AudioEncoder):
            print(f"{i}: {await audio_rec.is_supported_encoder_async(i)}")

    async def handle_state_change(e):
        print(f"State Changed: {e.data}")

    audio_rec = ft.AudioRecorder(
        audio_encoder=ft.AudioEncoder.WAV,
        on_state_changed=handle_state_change,
    )
    page.overlay.append(audio_rec)
    await page.update_async()

    await page.add_async(
        ft.ElevatedButton("Start Audio Recorder", on_click=handle_start_recording),
        ft.ElevatedButton("Stop Audio Recorder", on_click=handle_stop_recording),
        ft.ElevatedButton("List Devices", on_click=handle_list_devices),
        ft.ElevatedButton("Pause Recording", on_click=handle_pause),
        ft.ElevatedButton("Resume Recording", on_click=handle_resume),
        ft.ElevatedButton("Test AudioEncodings", on_click=handle_audio_encoding_test),
        ft.ElevatedButton("Has Permission", on_click=handle_has_permission),
    )


ft.app(main)

To reproduce

Run with the command flet run -r -d;
I click on start recording;
I click on stop recording.

Expected behavior

No response

Screenshots / Videos

Captures

[Upload media here]

Operating System

Windows

Operating system details

Windows 11

Flet version

0.24.1

Regression

I'm not sure / I don't know

Suggestions

No response

Logs

Logs

(_env) PS C:\NASCIN\flet\project-0109-sofie> flet run -r -d
C:\NASCIN\flet\project-0109-sofie\main.py:108: DeprecationWarning: update_async() is deprecated in version 0.21.0 and will be removed in version 0.26.0. Use Page.update() method instead.
  await page.update_async()
C:\NASCIN\flet\project-0109-sofie\main.py:110: DeprecationWarning: add_async() is deprecated in version 0.21.0 and will be removed in version 0.26.0. Use Page.add() method instead.
  await page.add_async(
C:\NASCIN\flet\project-0109-sofie\main.py:68: DeprecationWarning: start_recording_async() is deprecated in version 0.21.0 and will be removed in version 0.26.0. Use start_recording() method instead.
  await audio_rec.start_recording_async(path)
StartRecording: test-audio-file.wav
Task exception was never retrieved
future: <Task finished name='Task-15' coro=<__run_socket_server.<locals>.on_event() done, defined at C:\NASCIN\flet\project-0109-sofie\_env\Lib\site-packages\flet_runtime\app.py:217> exception=TimeoutError("Timeout waiting for invokeMethod start_recording({'outputPath': 'test-audio-file.wav'}) call")>
Traceback (most recent call last):
  File "C:\NASCIN\flet\project-0109-sofie\_env\Lib\site-packages\flet_runtime\app.py", line 219, in on_event
    await conn.sessions[e.sessionID].on_event_async(
  File "C:\NASCIN\flet\project-0109-sofie\_env\Lib\site-packages\flet_core\page.py", line 906, in on_event_async
    await handler(ce)
  File "C:\NASCIN\flet\project-0109-sofie\main.py", line 68, in handle_start_recording
    await audio_rec.start_recording_async(path)
  File "C:\NASCIN\flet\project-0109-sofie\_env\Lib\site-packages\flet_core\audio_recorder.py", line 104, in start_recording_async
    return self.start_recording(output_path)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\NASCIN\flet\project-0109-sofie\_env\Lib\site-packages\flet_core\audio_recorder.py", line 90, in start_recording
    started = self.invoke_method(
              ^^^^^^^^^^^^^^^^^^^
  File "C:\NASCIN\flet\project-0109-sofie\_env\Lib\site-packages\flet_core\control.py", line 340, in invoke_method
    return self.__page._invoke_method(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\NASCIN\flet\project-0109-sofie\_env\Lib\site-packages\flet_core\page.py", line 1343, in _invoke_method
    raise TimeoutError(
TimeoutError: Timeout waiting for invokeMethod start_recording({'outputPath': 'test-audio-file.wav'}) call
State Changed: stopped
StopRecording: None
C:\NASCIN\flet\project-0109-sofie\main.py:108: DeprecationWarning: update_async() is deprecated in version 0.21.0 and will be removed in version 0.26.0. Use Page.update() method instead.
  await page.update_async()

Additional details

No response

[OwenMcDonnell]

If I skip the deprecated async methods as below it works for me on Windows 11.

    def handle_start_recording(e):
        print(f"StartRecording: {path}")
        audio_rec.start_recording(path)

    def handle_stop_recording(e):
        output_path = audio_rec.stop_recording()
        print(f"StopRecording: {output_path}")
        if page.web and output_path is not None:
            page.launch_url(output_path)
            
****************************************

    page.add(
        ft.ElevatedButton("Start Audio Recorder", on_click=handle_start_recording),
        ft.ElevatedButton("Stop Audio Recorder", on_click=handle_stop_recording),
        ft.ElevatedButton("List Devices", on_click=handle_list_devices),
        ft.ElevatedButton("Pause Recording", on_click=handle_pause),
        ft.ElevatedButton("Resume Recording", on_click=handle_resume),
        ft.ElevatedButton("Test AudioEncodings", on_click=handle_audio_encoding_test),
        ft.ElevatedButton("Has Permission", on_click=handle_has_permission),
    )