# Whisper API, increase file limit \>25 MB

**URL:** <https://community.openai.com/t/whisper-api-increase-file-limit-25-mb/566754>\
**Category:** API\
**Tags:** whisper, feature-request\
**Created:** [December 20, 2023, 6:41pm UTC](https://community.openai.com/t/whisper-api-increase-file-limit-25-mb/566754 "2023-12-20T18:41:53Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![\_j](https://sea2.discourse-cdn.com/openai1/user_avatar/community.openai.com/_j/32/766292_2.png) [@\_j](https://community.openai.com/u/_j)\
**Post date:** [December 20, 2023, 8:02pm UTC](https://community.openai.com/t/whisper-api-increase-file-limit-25-mb/566754/2 "2023-12-20T20:02:11Z")

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It is possible to increase the limit to _hours_ by re-encoding the audio.

As the primary purpose of the service is transcription, you can use voice codec and bitrate.

For example, a command to get exactly what you want.

`ffmpeg -i audio.mp3 -vn -map_metadata -1 -ac 1 -c:a libopus -b:a 12k -application voip audio.ogg`

Opus is one of the highest quality audio encoders at low bitrates, and is supported by Whisper in ogg container.

![image](https://us1.discourse-cdn.com/openai1/original/4X/8/d/8/8d8f9b9f09d9a11d91530eee351ae24d5151bb72.png)

Silence detection: also a useful tool.

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