Difference between revisions of "MIC Shared Memory"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
The shared-memory for the MIC(microphone) module contains the audio data. The entire shared-memory contains audio data, except for the last u32. The last u32 contains an offset within this sharedmem. This offset is likely the end-offset of the audio data written by MIC module. | The shared-memory for the MIC(microphone) module contains the audio data. The entire shared-memory contains audio data, except for the last u32. The last u32 contains an offset within this sharedmem. This offset is likely the end-offset of the audio data written by MIC module. | ||
| − | The format of this audio data is mono-channel with signed PCM16. | + | The format of this audio data is mono-channel with signed PCM16. The sampling rate seems to be 16000Hz. |
Revision as of 23:19, 1 September 2014
The shared-memory for the MIC(microphone) module contains the audio data. The entire shared-memory contains audio data, except for the last u32. The last u32 contains an offset within this sharedmem. This offset is likely the end-offset of the audio data written by MIC module.
The format of this audio data is mono-channel with signed PCM16. The sampling rate seems to be 16000Hz.