mumble-voip/mumble

Feature Request - Fully disable Speex preprocessing

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#3,323 opened on Jan 27, 2018

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audioclientfeature-requesthelp wanted

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Description

Speex preprocessing noticeably reduces sound quality. I've received some comments that Mumble doesn't sound as good as some other VOIP options. To test, I removed all Speex preprocessing in the source, and sound quality was better than anything we've ever tested.

It might be specific to our environment/equipment, as some microphones don't seem to be affected as much.

Would love to see an option for this under the Audio Processing settings. Or perhaps disable Speex preprocessing completely whenever the user sets Noise Suppression to Off.

Thanks!

Contributor guide

Research direction
Identify where Speex preprocessing is applied in the Mumble source code and create an option to disable it, or tie it to the noise suppression setting.
Tech stack
cpp
Domain
audio video rtc
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
cpp
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65