# Custom Module Development for listening to subaudible tones in an audio rtmp stream

**URL:** <https://community.wowza.com/t/custom-module-development-for-listening-to-subaudible-tones-in-an-audio-rtmp-stream/633>\
**Category:** Hire a Consultant\
**Created:** [November 14, 2014, 9:45am UTC](https://community.wowza.com/t/custom-module-development-for-listening-to-subaudible-tones-in-an-audio-rtmp-stream/633 "2014-11-14T09:45:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/system/32/447_2.png) [@system](https://community.wowza.com/u/system)\
**Post date:** [November 14, 2014, 9:45am UTC](https://community.wowza.com/t/custom-module-development-for-listening-to-subaudible-tones-in-an-audio-rtmp-stream/633/1 "2014-11-14T09:45:36Z")

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Wowza does not have a built in method for detecting subaudible tones in a stream, so I’m wondering if any consultant has experience building a module that analyzes frequency in real-time and can then trigger an API call when a specific frequency is detected. The purpose of this is to detect ad breaks in the stream.

Thanks!

Brian

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**Author:** ![Roman\_Shmelev](https://avatars.discourse-cdn.com/v4/letter/r/e5b9ba/32.png) [@Roman\_Shmelev](https://community.wowza.com/u/Roman_Shmelev)\
**Post date:** [November 14, 2014, 8:02pm UTC](https://community.wowza.com/t/custom-module-development-for-listening-to-subaudible-tones-in-an-audio-rtmp-stream/633/2 "2014-11-14T20:02:49Z")

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We can discuss this.

Contact me: rshmelev@gmail.com

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**Author:** ![Shijil\_S](https://avatars.discourse-cdn.com/v4/letter/s/bc8723/32.png) [@Shijil\_S](https://community.wowza.com/u/Shijil_S)\
**Post date:** [December 8, 2014, 2:14pm UTC](https://community.wowza.com/t/custom-module-development-for-listening-to-subaudible-tones-in-an-audio-rtmp-stream/633/3 "2014-12-08T14:14:53Z")

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Dear Brian,

We are interested to discuss with you, please reach me on skype. shijils

Thanks

Shijil

[sparksupport.com](http://sparksupport.com)