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private static AudioClip unityWebRequestAudioClip;

private static bool TryImportAudioClip(string name, string extension, bool streaming, out AudioClip audioClip)
{
    // Seek from loose files
    string filePath = Path.Combine(soundPath, name + extension);
    if (File.Exists(filePath))
    {
        AudioType audioType = AudioType.UNKNOWN;
        if (extension.Equals("ogg", System.StringComparison.OrdinalIgnoreCase))
            audioType = AudioType.OGGVORBIS;
        else if (extension.Equals("wav", System.StringComparison.OrdinalIgnoreCase))
            audioType = AudioType.WAV;
        
        DaggerfallUnity.Instance.StartCoroutine(UseUnityWebRequest(filePath, streaming, audioType));
        
        while (unityWebRequestAudioClip == null)
            new WaitForSeconds(0);
        
        audioClip = unityWebRequestAudioClip;
        unityWebRequestAudioClip = null;
        Debug.LogErrorFormat("audioClip = " + audioClip + ", unityWebRequestAudioClip = " + unityWebRequestAudioClip);
        
        return true;
    }
}

private static IEnumerator UseUnityWebRequest(string filePath, bool streaming, AudioType audioType)
{
    using (UnityWebRequest unityWebRequest = UnityWebRequestMultimedia.GetAudioClip("file://" + filePath, audioType))
    {
        ((DownloadHandlerAudioClip)unityWebRequest.downloadHandler).streamAudio = true;
        unityWebRequest.SendWebRequest();
        if (streaming)
        {
            while (unityWebRequest.downloadProgress < 0.001)
                yield return new WaitForSeconds(0);
        }
        else
            yield return unityWebRequest.isDone;

        if (unityWebRequest.isNetworkError)
            Debug.LogErrorFormat("System error encountered while trying to load audioclip '{0}': {1}", filePath, unityWebRequest.error);
        else if (unityWebRequest.isHttpError)
            Debug.LogErrorFormat("Network error encountered while trying to load audioclip '{0}': {1}", filePath, unityWebRequest.responseCode);
        else
        {
            unityWebRequestAudioClip = ((DownloadHandlerAudioClip)unityWebRequest.downloadHandler).audioClip;
            Debug.LogWarningFormat("Web request done: " + unityWebRequestAudioClip + ", " + filePath);
        }
    }
}