[GH-ISSUE #6926] enh: Provide language to OpenAI STT API #30065

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GiteaMirror · 2026-04-25T04:23:06-05:00

GiteaMirror commented

2026-04-25 04:23:06 -05:00

Originally created by @mike-stewart on GitHub (Nov 13, 2024).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/6926

Feature Request

Is your feature request related to a problem? Please describe.
We have seen a few instances where a user's speech input is garbled and interpreted by OpenAI speech-to-text as another language. This causes incorrect input, made even worse because then OpenAI responds in that other language for all subsequent messages.

Describe the solution you'd like
Could we modify the input to the OpenAI API to provide the language from the user's settings?

Based on the OpenAI docs, it looks like we'd just need to provide the language parameter here:
96c865404d/backend/open_webui/apps/audio/main.py (L434)

Describe alternatives you've considered
N/A

Additional context
According to the OpenAI docs, providing the language may also improve performance:

Supplying the input language in ISO-639-1 format will improve accuracy and latency.

Originally created by @mike-stewart on GitHub (Nov 13, 2024). Original GitHub issue: https://github.com/open-webui/open-webui/issues/6926 # Feature Request **Is your feature request related to a problem? Please describe.** We have seen a few instances where a user's speech input is garbled and interpreted by OpenAI speech-to-text as another language. This causes incorrect input, made even worse because then OpenAI responds in that other language for all subsequent messages. **Describe the solution you'd like** Could we modify the input to the OpenAI API to provide the language from the user's settings? Based on the [OpenAI docs](https://platform.openai.com/docs/api-reference/audio/createTranscription), it looks like we'd just need to provide the language parameter here: https://github.com/open-webui/open-webui/blob/96c865404d36637eafadb6d2dd2365c85d452648/backend/open_webui/apps/audio/main.py#L434 **Describe alternatives you've considered** N/A **Additional context** According to the OpenAI docs, providing the language may also improve performance: > Supplying the input language in [ISO-639-1](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) format will improve accuracy and latency.

GiteaMirror closed this issue

2026-04-25 04:23:07 -05:00

GiteaMirror commented

2026-04-25 04:23:08 -05:00

@nengoxx commented on GitHub (Dec 21, 2024):

Could I also suggest it for local, along with the VAD (voice activity detection) filter? It really improves quality, and the VAD almost completely suppresses the annoying hallucinations that whisper usually has.

It's in line 470:

29a2719595/backend/open_webui/apps/audio/main.py (L470)

I'm currently using it via pip just for that reason: segments, info = model.transcribe(file_path, language="en", beam_size=5, vad_filter=True)

@nengoxx commented on GitHub (Dec 21, 2024): Could I also suggest it for local, along with the VAD (voice activity detection) filter? It really improves quality, and the VAD almost completely suppresses the annoying hallucinations that whisper usually has. It's in line 470: https://github.com/open-webui/open-webui/blob/29a271959556743e6deb4d55a5a982983335d7ab/backend/open_webui/apps/audio/main.py#L470 I'm currently using it via pip just for that reason: `segments, info = model.transcribe(file_path, language="en", beam_size=5, vad_filter=True)`

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Reference: github-starred/open-webui#30065