# Transcoding live stream, no video just audio **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [May 27, 2016, 4:02am UTC](https://community.wowza.com/t/transcoding-live-stream-no-video-just-audio/47098 "2016-05-27T04:02:38Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Gabor\_Varadi](https://avatars.discourse-cdn.com/v4/letter/g/ba9def/32.png) [@Gabor\_Varadi](https://community.wowza.com/u/Gabor_Varadi)\ **Post date:** [May 27, 2016, 4:02am UTC](https://community.wowza.com/t/transcoding-live-stream-no-video-just-audio/47098/1 "2016-05-27T04:02:38Z")
Hi, I have a flash live stream application, from browser. I wanted to transcode/transrate this incomming stream to a different platform (iOS AIR/Android AIR). I try to transcode the incomming stream to h236, and h264 to, but if I test with TestPlayer, I got just the audio, and the screen is black. The incomming stream section, if i click the stream name (for example myStream\_test) I can see Network Throughput Bytes In: 1173666 @ 87.810 Kbits/s Bytes Out: 166725 @ 105.580 Kbits/s So there is no video, just audio. Why? ---
**Author:** ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)\ **Post date:** [May 27, 2016, 6:30am UTC](https://community.wowza.com/t/transcoding-live-stream-no-video-just-audio/47098/2 "2016-05-27T06:30:25Z")
Hello there and welcome to the Wowza support forum. It sounds like you are sending Sorenson Spark video to the Transcoder from your Flash app? The Wowza Transcoder does not support this video codec. Do you have the option of setting this to H264 in your Flash app? You can review the [Wowza Transcoder user guide](https://www.wowza.com/resources/WowzaStreamingEngine_TranscoderUsersGuide.pdf) to see a list of other supported audio/video codecs. Regards, Salvadore