Archived:Background noise while streaming zero-filled buffers (Known Issue)
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Revision as of 09:10, 30 August 2007
| Background noise while streaming zero-filled buffers | KIS000656 | |
| Overview | - | |
| Category | Symbian C++ | |
| Subcategory | Audio | |
| Reported against | S60 2nd Edition and FP1, FP2, FP3 S60 3rd Edition and FP1 | |
| Date identified | May 21, 2007 | |
| Symptoms | - | |
| Detailed description | In some S60 devices the level of background noise may be disturbing when using an audio output stream to play back silence; that is, when the stream is fed with zero-filled buffers. | |
| How to reproduce | - | |
| Solution | Applications should not implement a ’mute’ functionality by streaming zero-filled buffers. Instead, the output stream should either be stopped or its volume level should be set to 0. Note that adjusting the volume is a significantly faster operation than stopping/ restarting the stream. |
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