arduino-audio-tools
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Analog Data IO using a timer and the Arduino analogRead() method and writing using analogWrite();. More...
#include <AnalogAudioArduino.h>
Public Member Functions | |
virtual void | addNotifyAudioChange (AudioInfoSupport &bi) |
Adds target to be notified about audio changes. | |
virtual AudioInfo | audioInfo () override |
provides the actual input AudioInfo | |
virtual AudioInfo | audioInfoOut () |
provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream | |
int | available () override |
int | availableForWrite () override |
bool | begin () override |
Reopen with last config. | |
bool | begin (AnalogConfigStd cfg) |
virtual void | clearNotifyAudioChange () |
Deletes all change notify subscriptions. | |
AnalogConfigStd | defaultConfig () |
provides the default configuration | |
void | end () override |
virtual void | flush () override |
bool | isNotifyActive () |
Checks if the automatic AudioInfo update is active. | |
virtual | operator bool () |
size_t | readBytes (uint8_t *data, size_t len) override |
Provides the sampled audio data. | |
virtual size_t | readSilence (uint8_t *buffer, size_t length) |
Source to generate silence: just sets the buffer to 0. | |
virtual bool | removeNotifyAudioChange (AudioInfoSupport &bi) |
Removes a target in order not to be notified about audio changes. | |
void | setAudioInfo (AudioInfo info) override |
Defines the input AudioInfo. | |
void | setNotifyActive (bool flag) |
Deactivate/Reactivate automatic AudioInfo updates: (default is active) | |
size_t | write (const uint8_t *data, size_t len) override |
virtual size_t | write (uint8_t ch) override |
virtual void | writeSilence (size_t len) |
Writes len bytes of silence (=0). | |
Protected Member Functions | |
int | decimation () |
int | effectiveOutputSampleRate () |
Returns the effective output sample rate. | |
bool | isCombinedChannel () |
bool | isDecimateActive () |
virtual int | not_supported (int out, const char *msg="") |
void | notifyAudioChange (AudioInfo info) |
void | refillReadBuffer () |
bool | setupBuffer () |
bool | setupPins () |
pinmode input for defined analog pins | |
bool | setupTimer () |
bool | setupTx () |
void | updateAvg () |
void | updateMinMax (int value) |
Static Protected Member Functions | |
static void | callback (void *arg) |
Sample data and write to buffer. | |
Protected Attributes | |
int | _timeout = 10 |
int | avg_value |
BaseBuffer< uint8_t > * | buffer = nullptr |
AnalogConfigStd | config |
int | count |
int | decim = 1 |
uint16_t | frame_size = 0 |
AudioInfo | info |
bool | is_combined_channels = false |
bool | is_notify_active = true |
int | max |
int | min |
Vector< AudioInfoSupport * > | notify_vector |
int | result_factor = 1 |
TimerAlarmRepeating | timer |
RingBuffer< uint8_t > | tmp_in {0} |
RingBuffer< uint8_t > | tmp_out {0} |
Analog Data IO using a timer and the Arduino analogRead() method and writing using analogWrite();.
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inlineprotected |
The requested sampling rate is too hight: we only process half of the samples so we can half the sampling rate