CapMonster 2 software starting from 2.5.5.0 version allows to recognize SolveMedia audio captcha. We have developed special module ZennoLab.AudioSolveMedia for this.

At first you should disable plugins in browser

To send SolveMedia audio from ZennoPoster (v.5.9.5.1 and higher) you should use the following snippet:

// Main settings
 
// waiting timeout
var waitTime = 1000;
// attempts to load captcha
var tryLoadElement = 60;
// show recognizing progress messages
var needShowMessages = true;
// folder for saving audio files
var mainAudiofolderName = "sm_audio";
 
// Additional variables
var tab = instance.ActiveTab;
var timeout = false;
var file = string.Empty;
var answer = string.Empty;
var fileLoadingError = false;
var audioFolder = string.Format("{0}\\{1}\\{2}", project.Directory, mainAudiofolderName, Guid.NewGuid().ToString());
 
Action CheckFileDeleting= () => {
	if (File.Exists(file)) File.Delete(file);
	if (Directory.Exists(audioFolder))
	{
		// check directory is empty
		if ((Directory.GetDirectories(audioFolder).Length + Directory.GetFiles(audioFolder).Length) == 0)
			Directory.Delete(audioFolder);
	}
};
 
Action CheckMediaError= () => {
	if (tab.URL.Contains("api.solvemedia.com/media/media-error.gif"))
		throw new Exception("Error loading media");
};
 
Action CheckTimeOut= () => {
	if (timeout) 
		throw new Exception("Timeout of loading element has been exceeded");
};
 
Action OpenAudioForm = () => {
	project.SendInfoToLog("Opening the form with audio task", needShowMessages);
	for (int k = 0; k < tryLoadElement; k++)
	{
		var audioButton = tab.FindElementByAttribute("a", "id", "adcopy-link-audio", "text", 0);
		if (!audioButton.IsVoid)
		{
			audioButton.Click();
			break;
		}
		System.Threading.Thread.Sleep(waitTime);
		CheckMediaError();
		if (k == (tryLoadElement - 1)) timeout = true;
	}
	CheckTimeOut();
};
 
Action GetAudioFile= () => {
	for (int k = 0; k < tryLoadElement; k++)
	{
		var audioButton = tab.FindElementByAttribute("a", "innerhtml", "Download mp3 file", "text", 0);
		if (!audioButton.IsVoid)
		{
			project.SendInfoToLog("Downloading audio file", needShowMessages);
			audioButton.Click();
			break;
		}
		else System.Threading.Thread.Sleep(waitTime);
		CheckMediaError();
		if (k == (tryLoadElement - 1)) timeout = true;
	}
	CheckTimeOut();
};
 
Action Recognize= () => {
	// waiting loading file
	tab.WaitDownloading();
	CheckMediaError();
	file = audioFolder + "\\media.mp3";
	for (int k = 0; k < tryLoadElement; k++)
	{
		if (File.Exists(file)) break;
		else System.Threading.Thread.Sleep(waitTime);
		if (k == (tryLoadElement - 1)) timeout = true;
	}
	CheckTimeOut();
 
	// getting audio bytes
	var bytes = File.ReadAllBytes(file);
	if (bytes.Length < 1024) throw new Exception("Error loading file");
 
	project.SendInfoToLog("Recognizing", needShowMessages);
	string str = Convert.ToBase64String(bytes);
	var rc = ZennoPoster.CaptchaRecognition("CapMonster2.dll", str, "CapMonsterModule=ZennoLab.AudioSolveMedia&ParallelMode=true");
	answer = rc.Split(new [] {"-|-"}, StringSplitOptions.RemoveEmptyEntries)[0];
};
 
Action InputAnswer= () => {
	if (!String.IsNullOrEmpty(answer) && answer != "sorry")
	{
		project.SendInfoToLog("Inserting answer", needShowMessages);
		HtmlElement audioAnswerInput = tab.FindElementByAttribute("input:text", "id", "adcopy_response", "text", 0);
		if (!audioAnswerInput.IsVoid)
		{
			audioAnswerInput.SetValue(answer, "None", false);
		}
		System.Threading.Thread.Sleep(waitTime);
	}
	else throw new Exception("Answer not received");
};
 
// Recognizing captcha
try
{
	instance.DownloadsPath = audioFolder;
	OpenAudioForm();
	GetAudioFile();
	Recognize();
	InputAnswer();
	return "ok";
}
finally
{
	CheckFileDeleting();
}

For working with SolveMedia captcha, we recommend to use high-quality proxies. By multiple requests, both graphic and audio SolveMedia captchas are getting distorted and becoming hardly recognizable for our neural network, as well as even for human. Taking into attention this captcha behavior, recognition rate for this captcha is quite relative. So, when using fresh IP-addresses, recognition percent is often higher than claimed, and after few hundred recognized captchas, recognition success decreases because of described reasons. Recognition percent also depends on number of words in captcha audio file.

Before loading web page with SolveMedia captcha, you should diable plugins in browser, otherwise link to download audio captcha won't appear.

Note that you can set custom values for main snippet parameters, such as waiting timeout, attempts to load elements and directory for downloading audio files:

// waiting timeout
var waitTime = 1000;
// attempts to load web element
var tryLoadElement = 60;
// folder for saving audio files
var mainAudiofolderName = "sm_audio";

The function to send captcha to service looks like this:

ZennoPoster.CaptchaRecognition("CapMonster2.dll", base64StringAudioBytes, "CapMonsterModule=ZennoLab.AudioSolveMedia");