Struct AudioMicrophone 

pub struct AudioMicrophone { /* private fields */ }

Rust wrapper for Android microphone service

Implementations

impl AudioMicrophone

pub fn new( env: JNIEnv<'_>, context: &GlobalRef, sample_rate: i32, channel_config: i32, audio_format: i32, ) -> Result<Self, MicError>

Create a new AudioMicrophone instance

Arguments

• env - JNI environment
• context - GlobalRef to context object (used to get the correct ClassLoader)
• sample_rate - Sample rate (e.g., 16000, 44100, 48000)
• channel_config - Channel configuration (use ChannelInConfig constants)
• audio_format - Audio encoding format (use AudioEncoding constants)

Returns

Returns initialized AudioMicrophone instance

Examples

See the README.md for complete usage examples.

pub fn start(&self) -> Result<(), MicError>

Start recording

pub fn stop(&self) -> Result<(), MicError>

Stop recording

pub fn release(&self) -> Result<(), MicError>

Release resources

pub async fn read(&self, duration_ms: i32) -> Result<Vec<u8>, MicError>

Read audio data asynchronously

Arguments

• duration_ms - Duration of audio to read in milliseconds

Returns

• Result<Vec<u8>, MicError> - Audio data (raw PCM data)

Buffer Design

To prevent stuttering, the internal buffer size is automatically calculated as 2x the requested duration. For example, if you want to read 1 second (1000ms) of data, the internal buffer will prepare at least 2 seconds of data.

Examples

See README.md for complete usage examples.

pub fn get_sample_rate(&self) -> i32

Get sample rate

pub fn get_channel_count(&self) -> i32

Get channel count

pub fn get_audio_format(&self) -> i32

Get audio format

pub fn get_buffer_size(&self) -> Result<i32, MicError>

Get buffer size

pub fn calculate_bytes_for_duration(&self, duration_ms: i32) -> i32

Calculate number of bytes for a specified duration

Trait Implementations

impl Drop for AudioMicrophone

fn drop(&mut self)

Executes the destructor for this type.

impl Send for AudioMicrophone

impl Sync for AudioMicrophone