brailcom/speechd

Add an option to generate noise during speech-dispatcher execution

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#346 opened on May 28, 2020

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enhancementhelp wanted

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Description

Some headphones or sound system go idle when no sound is produced. This means that the beginning of all sentences are eaten by the wake-up of the sound system.

It would be useful to add an option to speech-dispatcher to permanently generate noise, so as to keep such systems up and running. The volume of the noise should be configurable, to make it loud enough to avoid the system going idle, but silent enough to avoid user headache.

The implementation could be a mere thread started during speech-dispatcher startup, that just generates the noise and pushes it to an instance of audio output.

Contributor guide

Research direction
Study the existing audio output interface in speechd, understand the threading model used during startup, and design a noise generation thread that pushes audio data to the output. Also, consider how to make the noise volume configurable.
Tech stack
c
Domain
backendaudio video rtc
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
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
CGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60