arduino-audio-tools
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EncoderL16s - Condenses 16 bit PCM data stream to 8 bits data. Most microcontrollers can not process 8 bit audio data directly. 8 bit data however is very memory efficient and helps if you need to store audio on constrained resources. This encoder translates 16bit data into 8bit data. More...
#include <CodecL16.h>
Public Member Functions | |
EncoderL16 (Print &out) | |
AudioInfo | audioInfo () |
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 | |
virtual bool | begin () override |
starts the processing using the actual RAWAudioInfo | |
virtual bool | begin (AudioInfo info) |
bool | begin (Print &out) |
starts the processing | |
void | end () override |
stops the processing | |
bool | isOpen () |
const char * | mime () override |
Provides "audio/pcm". | |
operator bool () override | |
void | setAudioInfo (AudioInfo from) override |
Defines the sample rate, number of channels and bits per sample. | |
void | setOutput (Print &out_stream) override |
Defines the output Stream. | |
virtual size_t | write (const uint8_t *data, size_t len) override |
Writes PCM data to be encoded as RAW. | |
Protected Member Functions | |
void | writeBlocking (Print *out, uint8_t *data, size_t len) |
Protected Attributes | |
AudioInfo | info |
bool | is_open |
Print * | p_print = nullptr |
EncoderL16s - Condenses 16 bit PCM data stream to 8 bits data. Most microcontrollers can not process 8 bit audio data directly. 8 bit data however is very memory efficient and helps if you need to store audio on constrained resources. This encoder translates 16bit data into 8bit data.