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mbed-os-example-blinky
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Echo cancellation. More...
Go to the source code of this file.
Typedefs | |
| typedef struct SpeexEchoState_ | SpeexEchoState |
| Internal echo canceller state. | |
Functions | |
| SpeexEchoState * | speex_echo_state_init (int frame_size, int filter_length) |
| Creates a new echo canceller state. | |
| void | speex_echo_state_destroy (SpeexEchoState *st) |
| Destroys an echo canceller state. | |
| void | speex_echo_cancellation (SpeexEchoState *st, const spx_int16_t *rec, const spx_int16_t *play, spx_int16_t *out) |
| Performs echo cancellation a frame, based on the audio sent to the speaker (no delay is added to playback ni this form) | |
| void | speex_echo_cancel (SpeexEchoState *st, const spx_int16_t *rec, const spx_int16_t *play, spx_int16_t *out, spx_int32_t *Yout) |
| Performs echo cancellation a frame (deprecated) | |
| void | speex_echo_capture (SpeexEchoState *st, const spx_int16_t *rec, spx_int16_t *out) |
| Perform echo cancellation using internal playback buffer, which is delayed by two frames to account for the delay introduced by most soundcards (but it could be off!) | |
| void | speex_echo_playback (SpeexEchoState *st, const spx_int16_t *play) |
| Let the echo canceller know that a frame was just queued to the soundcard. | |
| void | speex_echo_state_reset (SpeexEchoState *st) |
| Reset the echo canceller to its original state. | |
| int | speex_echo_ctl (SpeexEchoState *st, int request, void *ptr) |
| Used like the ioctl function to control the echo canceller parameters. | |
Detailed Description
Echo cancellation.
Definition in file speex_echo.h.
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