chore: correct typos in audioutils.cpp

[felixonmars]

Log:

[deepin-bot]

TAG Bot

New tag: 5.12.14
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #436

[deepin-bot]

TAG Bot

New tag: 5.12.15
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #440

[deepin-bot]

TAG Bot

New tag: 5.12.16
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #443

[deepin-bot]

TAG Bot

New tag: 5.12.17
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #448

[deepin-bot]

TAG Bot

New tag: 5.12.18
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #454

[deepin-bot]

TAG Bot

New tag: 5.12.19
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #458

[deepin-bot]

TAG Bot

New tag: 5.12.20
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #472

[deepin-ci-robot]

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This pull-request has been approved by: felixonmars, wyu71

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