Make an EZ-Builder Behavior Control

Output Audio from EZ-B

This is an example with source code about how to play audio out of the EZ-B. The EZ-B will output audio as a stream or byte array.

This example can be run as a plugin by installing it here: http://www.ez-robot.com/EZ-Builder/Plugins/view/202

Source code as a plugin project is here:
OutputAudioFromEZ-BSource.zip

*Dependency: Additional to adding EZ-Builder.exe and EZ-B.DLL, this plugin requires NAudio.DLL library to be added as a project reference. Remember to UNSELECT "Copy Files"!

This plugin provides the following examples:

1) Load audio from MP3 or WAV file

Code:


// MP3
NAudio.Wave.Mp3FileReader mp3 = new NAudio.Wave.Mp3FileReader(openFileDialog1.FileName);

// WAV
NAudio.Wave.WaveStream wav = new NAudio.Wave.WaveFileReader(openFileDialog1.FileName);


2) Convert audio file to uncompressed PCM data to supported EZ-B sample rate and sample size

Code:


NAudio.Wave.WaveFormatConversionStream pcm = new NAudio.Wave.WaveFormatConversionStream(new NAudio.Wave.WaveFormat(EZ_B.EZBv4Sound.AUDIO_SAMPLE_BITRATE, 8, 1), mp3);


3) Compress PCM data with gzip to be stored in project STORAGE

Code:


using (MemoryStream ms = new MemoryStream()) {

using (GZipStream gz = new GZipStream(ms, CompressionMode.Compress))
pcm.CopyTo(gz);

_cf.STORAGE[ConfigTitles.COMPRESSED_AUDIO_DATA] = ms.ToArray();
}


4) Play audio data from compressed project STORAGE

Code:


using (MemoryStream ms = new MemoryStream(compressedAudioData))
using (GZipStream gz = new GZipStream(ms, CompressionMode.Decompress))
EZBManager.EZBs[0].SoundV4.PlayData(gz);


5) Supports ControlCommand() for Play and Stop of audio to be used in external scripts

Code:


public override object[] GetSupportedControlCommands() {

List items = new List();

items.Add(ControlCommands.StartPlayingAudio);
items.Add(ControlCommands.StopPlayingAudio);

return items.ToArray();
}

public override void SendCommand(string windowCommand, params string[] values) {

if (windowCommand.Equals(ControlCommands.StartPlayingAudio, StringComparison.InvariantCultureIgnoreCase))
playStoredAudio();
else if (windowCommand.Equals(ControlCommands.StopPlayingAudio, StringComparison.InvariantCultureIgnoreCase))
stopPlaying();
else
base.SendCommand(windowCommand, values);
}


6) Changes the status of the button when audio is playing globally from anywhere in EZ-Builder on EZ-B #0

Code:


public FormMain() {

InitializeComponent();

EZBManager.EZBs[0].SoundV4.OnStartPlaying += SoundV4_OnStartPlaying;
EZBManager.EZBs[0].SoundV4.OnStopPlaying += SoundV4_OnStopPlaying;
}

private void FormMain_FormClosing(object sender, FormClosingEventArgs e) {

EZBManager.EZBs[0].SoundV4.OnStartPlaying -= SoundV4_OnStartPlaying;
EZBManager.EZBs[0].SoundV4.OnStopPlaying -= SoundV4_OnStopPlaying;
}

private void SoundV4_OnStopPlaying() {

Invokers.SetText(btnPlayAudio, "Play");
}

private void SoundV4_OnStartPlaying() {

Invokers.SetText(btnPlayAudio, "Stop");
}



Output Text to Speech
You can output text to speech easily as well, using the following code example...

Code:


using (MemoryStream s = EZBManager.EZBs[0].SpeechSynth.SayToStream("I am speaking out of the EZ-B))
EZBManager.EZBs[0].SoundV4.PlayData(s);

#15  
Error: the referenced component" EZ_builder,EZ_B" could not be found, DJ Sure i hope you can help me !
Synthiam
#16   — Edited
User-inserted image
Joinny, you have to add the referencing by following the instructions in this tutorial. They are outlined with step by step to easily follow. Click add references, and browse to the appropriate files as directed in the tutorial. I can’t write anything clearer in response. The step to add references is incredibly clear but you’re skipping it.
#17  
The error cannot read the COM file, I downloaded it and when I follow the instructions, I get an error, while other files read normally.
.User-inserted image
#18   — Edited
sorry for me but i tried many different ways but still show the error,I couldn't find EZ_B.dll file even though I downloaded it
Synthiam
#19  
None of the required references are in your list. Please follow the tutorial. It explains exactly how to click the browse button and navigate to the folder and select the files.
#20  
Sorry, but the reason I can't reference is because there is no file in the EZ_B folder and there is an error : this folder is empty , I am trying to solve it. I would like to thank DJ sure for answering my superfluous questions and I'm sorry for bothering you