• How to get stream video URLs by ESFSoft URL Sniffer?

    ESFSoft URL Sniffer offers a one-step solution to find URLs free from website. As a powerful streaming URL finder, ESFSoft URL Sniffer can get all the online video and audio streams that transmitted through HTTP, RTMP, MMS and RTSP protocols.

  • What is rtmpdump?

    The software package rtmpdump is a toolkit for RTMP streams. All forms of RTMP are supported with rtmp://, rtmpt://, rtmpe://, rtmpte://, and rtmps:// included.


    The package includes three utilities, rtmpdump, rtmpsrv and rtmpsuck. Rtmpdump is used to connect to RTMP servers just like normal Flash video player clients, and capture the stream from the network, and save it to a file.

  • What is RTMP?

    Real Time Messaging Protocol (RTMP) is a multimedia streaming designed for streaming video, audio, movies and data over the Internet. The popular RTMP websites like Hulu, MTV, BBC, Yahoo, etc.

    You are allowed to play and stream the video directly, but not allowed to download RTMP videos from the websites above that adopting technology of encryption and security.

  • Where to find the audio files which I have downloaded by ESFSoft Soundcloud Downloader for Mac 1.0?

    Don't worry. The mp3 audio will be saved in the default folder. And every time you run ESFSoft Soundcloud Downloader for Mac 1.0 and paste Soundcloud link address to download, it will always remind you of the save folder for once with a small window popping up. Later, no matter how many mp3 you download, it won't bother you any more if it is not exited.

  • How to change the containing folder of downloaded songs on ESFSoft Soundcloud Downloader for Mac?

    You can change the downloaded audio saving folder target on the top toolbar, hit the “Open Containing Folder” button , you will find the pop-up window showing the other alternative downloading files storage location, you are free to choose the other folder that you want to save the sound.

  • How do I convert downloaded Soundcloud mp3 to other audio files formats?

    Sorry. ESFSoft Soundcloud Downloader for Mac 2.0 version is unable to convert the sounds to other formats such as AAC, AC3, WAV, WMA or more. All files will be downloaded to the most prevailing and most compatible format – MP3.

  • How to use ESFSoft Audio Converter for converting MP3 to AMR?

    What is AMR?

    AMR is also a file format for storing spoken audio using the AMR codec. Many modern mobile telephone handsets can store short audio recordings in the AMR format, and both free and proprietary programs exist to convert between this and other formats, although AMR is a speech format and is unlikely to give ideal results for other audio. The common is .amr.

  • Can I convert several files simultaneously?

    Yes. Pick up all the files that need to convert into file list of ESFSoft Audio Converter, check them all and choose one of the output audio file formats.


    Attention: ESFSoft Audio Converter is only able to convert many files simultaneously to one audio format. It’s impossible to get different audio format at one time.

  • Does the program support to convert local MP4 to other video formats?

    Sorry. ESFSoft Audio Converter cannot support video to video conversion, while it works well in converting audio to audio and video to audio. If you need to convert mp4 to other video formats, we highly recommend you ESFSoft Video Converter, another freeware developed by ESFSoft. It allows you to directly convert all popular audio/video to other different video and audio formats.

  • How to convert music MP3 to AIFF?

    What is AIFF?

    Standard AIFF is a leading format (along with SDII and WAV) used by professional-level audio and video applications, and unlike the better-known lossy MP3 format, it is uncompressed (which aids rapid streaming of multiple audio files from disk to the application), and is lossless. Like any uncompressed, lossless format, it uses much more disk space than MP3.