mirror of
https://github.com/linux-speakup/espeakup.git
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110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/*
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* espeakup - interface which allows speakup to use espeak
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*
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* Copyright (C) 2008 William Hubbs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "espeakup.h"
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/* multipliers and offsets */
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const int frequencyMultiplier = 11;
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const int pitchMultiplier = 11;
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const int rateMultiplier = 34;
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const int rateOffset = 84;
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const int volumeMultiplier = 11;
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int SynthCallback(short *wav, int numsamples, espeak_EVENT * events)
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{
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return 0;
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}
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espeak_ERROR set_frequency(struct synth_t * s, int freq, enum adjust_t adj)
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{
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espeak_ERROR rc;
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if (adj == ADJ_DEC)
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freq = -freq;
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if (adj != ADJ_SET)
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freq += s->frequency;
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rc = espeak_SetParameter(espeakRANGE, freq * frequencyMultiplier, 0);
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if (rc == EE_OK)
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s->frequency = freq;
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return rc;
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}
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espeak_ERROR set_pitch(struct synth_t * s, int pitch, enum adjust_t adj)
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{
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espeak_ERROR rc;
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if (adj == ADJ_DEC)
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pitch = -pitch;
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if (adj != ADJ_SET)
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pitch += s->pitch;
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rc = espeak_SetParameter(espeakPITCH, pitch * pitchMultiplier, 0);
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if (rc == EE_OK)
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s->pitch = pitch;
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return rc;
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}
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espeak_ERROR set_rate(struct synth_t * s, int rate, enum adjust_t adj)
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{
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espeak_ERROR rc;
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if (adj == ADJ_DEC)
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rate = -rate;
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if (adj != ADJ_SET)
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rate += s->rate;
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rc = espeak_SetParameter(espeakRATE,
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rate * rateMultiplier + rateOffset, 0);
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if (rc == EE_OK)
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s->rate = rate;
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return rc;
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}
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espeak_ERROR set_voice(struct synth_t * s)
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{
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return (espeak_SetVoiceByName(s->voice));
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}
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espeak_ERROR set_volume(struct synth_t * s, int vol, enum adjust_t adj)
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{
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espeak_ERROR rc;
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if (adj == ADJ_DEC)
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vol = -vol;
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if (adj != ADJ_SET)
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vol += s->volume;
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rc = espeak_SetParameter(espeakVOLUME, (vol + 1) * volumeMultiplier,
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0);
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if (rc == EE_OK)
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s->volume = vol;
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return rc;
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}
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espeak_ERROR stop_speech(void)
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{
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return (espeak_Cancel());
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}
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espeak_ERROR speak_text(struct synth_t * s)
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{
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espeak_ERROR rc;
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rc = espeak_Synth(s->buf, s->len + 1, 0, POS_CHARACTER, 0, 0, NULL,
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NULL);
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return rc;
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}
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