AudioLab FAQ
Q: Does AudioLab support the format of my Audio Files?
A: AudioLab supports both Win32 API and DirectShow technologies. Win32 API will allow you to play only Wave files. If you decide to use DirectShow AudioLab will use any DirectShow filter available on your system. If you have a DirectShow filter for a particular video format AudioLab will recognize the format and use the proper filter. This means that AudioLab is capable of using any format available today. If you have a file that you can’t play in AudioLab, it means that you probably don’t have the proper DirectShow filter. Please search the web and download the filter needed for the particular format.
Q: I can’t play my video file! What is wrong?
A: In order to play format other then basic Wave you must use the DirectShow TVLDSAudioPlayer component. If you still can’t play the file, please check if you have installed a DirectShow codec for the file format. AudioLab needs a codec available in the system in order to decode the file. A huge selection of codecs is available on the WEB.
Q: Do I have to purchase AudioLab?
A: AudioLab is free for non commercial purposes. This means that you can use it for personal pleasure, hobby, or evaluation purposes. If you are student you can also use it for free for your educational needs including school projects. If you are a tutor at present you also can use it for free for your classes. However in the near future a low cost tutor license will be available, and you will have to purchase it. Your students however will not need license to use the product at class.
Q: Is AudioLab multithreading? Will it stop streaming while I move the window with the mouse?
A: Yes. AudioLab is fully multithreaded and will not stop streaming while the main thread is busy.
Q: Does AudioLab support DirectShow?
A: Yes. AudioLab supports DirectShow 8.1 or higher.
Q: What version of DirectShow I need to run AudioLab?
A: AudioLab supports DirectShow 8.1 or higher.
Q: Can I capture and save audio sample out of the audio stream?
A: Yes. Use the TALGenericFilter to obtain the sample. Check the CustomFiltersDemo example in the demos directory.
Q: Can I create a audio on the fly?
A: Yes. Use the TALGenericFilter to generate the buffers. Check the “Quick Start” manual for more information.
Q: Can I process the audio faster than the normal audio speed.
A: Yes. Check the “Quick Start” manual for more information.
Q: I want to copy and paste parts of the audio a new file. Can AudioLab do that?
A: Yes. AudioLab uses DirectShow to play and record files. Many formats do not allow easy positioning and can’t be used with DirectShow Editing Services. AudioLab offers a different approach. It allows you to play even non seek enabled file to a specific position and copy a portion of the file into a new one. Check the “Quick Start” manual for more information.
Q: Can I play audio files from a Web URL?
A: Yes. You can use the TALDSAudioPlayer to play files as well as any audio URL from the web.
Q: I want to use AudioLab. Do I have to install DirectShow?
A: DirectShow is not required on your system if you are not planning to write application using the DirectShow components of the package.
After installation, the AudioLab demos are located at:
- Delphi : $(Delphi)\LabPacks\Demos\AudioLab directory.
- C++ Builder : $(BCB)\LabPacks\Demos\AudioLab directory.
- Visual C++ : $(Install)\Demos\AudioLab directory.
- C# : $(Install)\DotNET\Demos\C#\AudioLab directory.
After installation, the DirectShow demos are located at:
- Delphi : $(Delphi)\LabPacks\Demos\DirectShow directory.
- C++ Builder : $(BCB)\LabPacks\Demos\DirectShow directory.
- Visual C++ : $(Install)\Demos\DirectShow directory.
- C# : $(Install)\DotNET\Demos\C#\DirectShow directory.
