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#21

Audio playback and audio management components / Re: send an input audio stream...

Last post by Administrator - November 07, 2024, 11:32:13 AM

Hello

There are two ways to send an audio stream to a streaming server. The sample project is one of them.
But it still needs to be attached to a Player and then output.
Is there any way to capture only the input audio source but not play output?

Yes, you can avoid any sound being sent to the render device by setting its output device to -1; inside the FormMain_Load function you will find the following lines of code

Code Select Expand

// obtain the stream mixer internal to the selected WASAPI device
m_nStreamMixerUniqueID = m_audioDjAPI.StreamMixerGetIdFromOutput (m_nWasapiDevice);

simply add the following code immediately after them:

Code Select Expand

m_audioDjAPI.StreamOutputDeviceSet(m_nStreamMixerUniqueID, -1);

There is one more thing that I am confused about the WasapiMixAndClone sample project.
Why a control can initial more than 4 players? The three extra Players in the sample program seem to have no effect.

// init the DJ Studio control by instancing an adequate number of players:
// 2 for playing sound files from disk and 5 for attaching input devices
short nPlayers = 2 + 5;
nPlayers = m_audioDjAPI.InitSoundSystem(nPlayers, m_nWasapiDevice, m_nWasapiDevice, m_nWasapiDevice, 0);

Inside the project there are 2 players that are used for loading and playing sound files from disk (Player_1 and Player_2) while the other 5 players (Player_Input_3 up to Player_Input_7) are used to attach different input channels and mix them into the internal stream mixer of the render device.
If you shouldn't need to play sounds from files on disk and you should simply need to attach and cast one single input stream you may instance one single player only.

Hope this helps

Kind regards

Severino Delaurenti
MultiMedia Soft

#22

Audio playback and audio management components / Re: send an input audio stream...

Last post by Terry - November 07, 2024, 06:35:13 AM

Hi,

There are two ways to send an audio stream to a streaming server. The sample project is one of them.
But it still needs to be attached to a Player and then output.
Is there any way to capture only the input audio source but not play output?

There is one more thing that I am confused about the WasapiMixAndClone sample project.
Why a control can initial more than 4 players? The three extra Players in the sample program seem to have no effect.

// init the DJ Studio control by instancing an adequate number of players:
// 2 for playing sound files from disk and 5 for attaching input devices
short nPlayers = 2 + 5;
nPlayers = m_audioDjAPI.InitSoundSystem(nPlayers, m_nWasapiDevice, m_nWasapiDevice, m_nWasapiDevice, 0);

Terry
Thank you

#23

Audio playback and audio management components / Re: send an input audio stream...

Last post by Administrator - November 05, 2024, 11:57:31 AM

Hello Terry,

yes, this is possible with our DJ Studio components: take a look into the WasapiMixAndClone sample project, installed by our setup program, which shows how to attach an input device to the internal stream mixer and to send the result to a streaming server.

Hope this helps.

Kind regards

Severino Delaurenti
MultiMedia Soft

#24

Audio playback and audio management components / send an input audio stream to ...

Last post by Terry - November 05, 2024, 05:51:24 AM

Hi,

Is there any way to send an input audio device stream to a streaming server?

Terry
Thank you.

#25

Audio playback and audio management components / Re: EV_SOUND_DONE infinite loo...

Last post by Administrator - September 26, 2024, 05:32:32 PM

Hi Terry,

this issue should have been fixed inside the latest build 14.4.2.1 of the multimedia engines AdjMmsEng.dll and AdjMmsEng64.dll.

You can update your installation by uninstalling the current version and by downloading the latest setup package available on our website.

Hope this helps.

Kind regards

Severino Delaurenti
MultiMedia Soft

#26

Audio playback and audio management components / EV_SOUND_DONE infinite loop

Last post by Terry - September 26, 2024, 07:39:25 AM

Hi,

I tried to load a sound file from the website through the "m_audioAPI.LoadInternetStream(0,"http://localhost/test.mp3")" command.
When the playback is completed, the EV_DOWNLOAD_COMPLETE event will be triggered first, and then the EV_SOUND_DONE event will be triggered infinitely.

The execution logs is as follows

13:10:30.0695|[1]|[EV_SOUND_STOPPED]
13:10:30.1013|[1]|[EV_STREAM_CONNECTING]
13:10:30.3553|[1]|[EV_DOWNLOAD_BUFFERING] URL=http://localhost/test.mp3 STREAMING_BUFFERING
13:10:30.3678|[1]|[EV_STREAM_LOADED] STREAM_LOAD_OK http://localhost/test.mp3
13:10:30.3678|[1]|[EV_SOUND_PLAYING] URL=http://localhost/test.mp3
13:10:30.3678|[1]|[EV_DOWNLOAD_BUFFERING] URL=http://localhost/test.mp3 STREAMING_PLAYING
13:11:18.3746|[1]|[EV_DOWNLOAD_COMPLETE] URL=http://localhost/test.mp3
13:11:24.2355|[1]|[EV_SOUND_DONE] URL=http://localhost/test.mp3
13:11:24.2524|[1]|[EV_SOUND_DONE] URL=http://localhost/test.mp3
13:11:24.2685|[1]|[EV_SOUND_DONE] URL=http://localhost/test.mp3
13:11:24.2854|[1]|[EV_SOUND_DONE] URL=http://localhost/test.mp3
13:11:24.2854|[1]|[EV_SOUND_STOPPED] URL=http://localhost/test.mp3
13:11:24.2854|[1]|[EV_SOUND_DONE] URL=http://localhost/test.mp3
13:11:24.3026|[1]|[EV_SOUND_DONE] URL=http://localhost/test.mp3
13:11:24.3186|[1]|[EV_SOUND_DONE] URL=http://localhost/test.mp3
.
.
infinite loop


Is it normal ....?

Terry

#27

Audio playback and audio management components / Re: Executing the ‘PlayListSto...

Last post by Administrator - September 03, 2024, 11:45:33 AM

Hello,

stopping the playlist causes the stop of the currently playing song so the SoundStopped event is raised.

Kind regards

Severino Delaurenti
MultiMedia Soft

#28

Audio playback and audio management components / Executing the ‘PlayListStop’ c...

Last post by Terry - September 03, 2024, 11:28:35 AM

Hi,

Executing the 'PlayListStop' command will not trigger any events, right?

Kind Regards

Terry

#29

Audio playback and audio management components / Re: Command line program can n...

Last post by Administrator - September 02, 2024, 02:43:47 PM

Hello,
you are welcome

Kind regards

Severino Delaurenti
MultiMedia Soft

#30

Audio playback and audio management components / Re: Command line program can n...

Last post by Terry - September 02, 2024, 04:42:19 AM

I was so careless, thank you.