raghumulukutla / com.aware.plugin.ambient_noise

This plugin measures the ambient noise (Hz, dB), and classifies the sample as noisy or silent moments (>50dB for noisy environments)

AWARE: Ambient Noise

This plugin measures the ambient noise (Hz, dB) as noisy or silent moments. It adds the daily noise exposure on the stream, showing the average dB and Hz per hour throughout the day.

Settings

• status_plugin_ambient_noise: (boolean) activate/deactivate ambient noise plugin
• frequency_plugin_ambient_noise: (integer) interval between audio data snippets, in minutes. Recommended value is every 5 minutes or higher.
• plugin_ambient_noise_sample_size: (integer) For how long we collect data, in seconds
• plugin_ambient_noise_silence_threshold: (integer) How many dB is a noisy environment?
• plugin_ambient_noise_no_raw: (boolean) to enable/disable raw audio recordings. By default, the plugin records the audio snippet. Enabling this, disables that.

Broadcasts

ACTION_AWARE_PLUGIN_AMBIENT_NOISE Broadcast as we classify the ambient sound, with the following extras:

• sound_frequency: (double) sound frequency in Hz
• sound_db: (double) sound decibels in dB
• sound_rms: (double) sound RMS (used to classify silent/not silent)
• is_silent: (boolean) true or false if it is silent

Providers

Ambient Noise Data

content://com.aware.plugin.ambient_noise.provider.ambient_noise/plugin_ambient_noise

Field	Type	Description
_id	INTEGER	primary key auto-incremented
timestamp	REAL	unix timestamp in milliseconds of sample
device_id	TEXT	AWARE device ID
double_frequency	REAL	sound frequency in Hz
double_decibels	REAL	sound decibels in dB
double_RMS	REAL	sound RMS
is_silent	INTEGER	0 = not silent 1 = is silent
double_silence_threshold	REAL	the used threshold when classifying between silent vs not silent
blob_raw	BLOB	the audio snippet raw data collected