# Live wav transmissions and fetching with RTSP receives by delay

**URL:** <https://community.wowza.com/t/live-wav-transmissions-and-fetching-with-rtsp-receives-by-delay/54534>\
**Category:** Wowza Streaming Engine\
**Tags:** recording\
**Created:** [January 27, 2020, 2:43pm UTC](https://community.wowza.com/t/live-wav-transmissions-and-fetching-with-rtsp-receives-by-delay/54534 "2020-01-27T14:43:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ido\_Magor](https://avatars.discourse-cdn.com/v4/letter/i/a6a055/32.png) [@Ido\_Magor](https://community.wowza.com/u/Ido_Magor)\
**Post date:** [January 27, 2020, 2:43pm UTC](https://community.wowza.com/t/live-wav-transmissions-and-fetching-with-rtsp-receives-by-delay/54534/1 "2020-01-27T14:43:30Z")

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Hello everyone,

I’m currently have the use case of having a .wav file, which is getting big by second by some application X, doesn’t really matter.

What I’m doing is using GStreamer to stream that wav file, using a RTSP pipeline so the wowza simply receives that file through RTSP while being encoded to AAC.

After initiating the streaming session to Wowza, I wish to start a new GStreamer session which fetches the same RTSP from Wowza.

When I’m doing this scenario, I’m receiving a 7 seconds delay, which means when I’m saying in the wav file recording source “1, 2, 3, 4, 5, 6, 7…” I’m hearing them with a 7 seconds delay.

Now the funny part… when I’m initiating the same session with a static file, which is not getting bigger by second and it’s whole when I’m starting the sessions, I don’t have delay of any some sory, and I’m hearing the audio at the same time.

I thought of searching about special flags that would help me out, with checking wowza in this manner, but I’m not an expert regarding Wowza, so I do will appreciate any help provided 🙂

Thank you very much heads up!

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**Author:** ![Tim\_Dougherty](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/tim_dougherty/32/596_2.png) [@Tim\_Dougherty](https://community.wowza.com/u/Tim_Dougherty)\
**Post date:** [January 27, 2020, 5:20pm UTC](https://community.wowza.com/t/live-wav-transmissions-and-fetching-with-rtsp-receives-by-delay/54534/2 "2020-01-27T17:20:21Z")

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It sounds like GStreamer is taking longer to encode an incomplete file. Wowza will only see the incoming live RTSP stream. I don’t anticipate there is a setting to optimize this.