# Set Raw Audio bitrate **URL:** \ **Category:** Windows\ **Tags:** raw-data\ **Created:** [May 1, 2023, 6:30pm UTC](https://devforum.zoom.us/t/set-raw-audio-bitrate/87659 "2023-05-01T18:30:43Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![tyler](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@tyler](https://devforum.zoom.us/u/tyler)\ **Post date:** [May 1, 2023, 6:30pm UTC](https://devforum.zoom.us/t/set-raw-audio-bitrate/87659/1 "2023-05-01T18:30:43Z")
**Description** I am using the onOneWayAudioRawDataReceived delegate to record raw audio. I can see the AudioRawData object has a bit rate property (I’m consistently getting 32k in my tests). I have two questions: - Does this bitrate change throughout the call? - Is it possible to set the bitrate? **Which Windows Meeting SDK version?** v5.11.1.6653 **Device (please complete the following information):** - OS: Windows 11 ---
**Author:** ![chunsiong.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chunsiong.zoom/32/35488_2.png) [@chunsiong.zoom](https://devforum.zoom.us/u/chunsiong.zoom)\ **Post date:** [May 2, 2023, 3:02am UTC](https://devforum.zoom.us/t/set-raw-audio-bitrate/87659/2 "2023-05-02T03:02:49Z")
Hi @tyler this should be consistently 32khz throughout the meeting. Currently there is no setter for the sampling rate. ---
**Author:** ![tyler](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@tyler](https://devforum.zoom.us/u/tyler)\ **Post date:** [May 2, 2023, 3:25pm UTC](https://devforum.zoom.us/t/set-raw-audio-bitrate/87659/3 "2023-05-02T15:25:33Z")
And what is the encoding? ---
**Author:** ![chunsiong.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chunsiong.zoom/32/35488_2.png) [@chunsiong.zoom](https://devforum.zoom.us/u/chunsiong.zoom)\ **Post date:** [May 3, 2023, 4:02am UTC](https://devforum.zoom.us/t/set-raw-audio-bitrate/87659/4 "2023-05-03T04:02:30Z")
The encoding is in PCM 16 bit ---
**Author:** ![tyler](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@tyler](https://devforum.zoom.us/u/tyler)\ **Post date:** [May 17, 2023, 12:43am UTC](https://devforum.zoom.us/t/set-raw-audio-bitrate/87659/5 "2023-05-17T00:43:36Z")
To give further context on this to anyone else having this issue, these arguments on ffmpeg did it for me: ```auto ffmpeg.exe -f s16le -ar 32k -ac 1 -i input.pcm output.wav ``` Edited: For single-channel audio only. This wasn’t tested for multi channel. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [June 16, 2023, 10:44am UTC](https://devforum.zoom.us/t/set-raw-audio-bitrate/87659/6 "2023-06-16T10:44:29Z")
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