~/talk

Controlling Android Sound

on YouTube 35m
TalkinJapaneseat DroidKaigi 2023 · 2023-09-14..09-16· [android]

speaker

name:Nishimy
links:none on file

resources

video:https://youtu.be/YPETmUcNQyo
slides:none on file

summary

Shows how to control Android audio using AudioManager, AudioAttributes, and AudioFocus and how to play sound with SoundPool, MediaPlayer, or AudioTrack. Presents tests on eight devices showing maximum stream volumes vary widely (7–32), so use AudioManager.getStreamMaxVolume and apply percentages rather than hardcoded numbers. Explains that changing ringer mode can throw SecurityException unless Notification Policy Access is granted (includes the settings intent), and recommends using adjustVolume or setStreamVolume while checking permissions.

AI-written summary · about

chapters (9)

  1. 0:00Introduction
  2. 0:44Android volume basics
  3. 7:26Volume terms and streams
  4. 13:30Audio library choices
  5. 16:49Silent mode
  6. 20:23Device volume differences
  7. 28:35Ringer mode differences
  8. 32:48Volume control best practices
  9. 33:53Summary & Q&A

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