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added frequency support

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This patch, also from Kirk Reiser, adds frequency support.
This commit is contained in:
William Hubbs 2008-08-01 19:51:29 -05:00
commit d7de943a3a
1 changed files with 17 additions and 0 deletions
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17
espeakup.c
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@ -36,12 +36,14 @@ const int maxBufferSize = 1025;
const char *pidPath = "/var/run/espeakup.pid";
/* multipliers and offsets */
const int frequencyMultiplier = 11;
const int pitchMultiplier = 10;
const int rateMultiplier = 32;
const int rateOffset = 80;
const int volumeMultiplier = 10;
struct synth_t {
int frequency;
int pitch;
int rate;
char voice[40];
@ -58,6 +60,11 @@ int SynthCallback(short *wav, int numsamples, espeak_EVENT *events)
return 0;
}
static void set_frequency (struct synth_t *s)
{
espeak_SetParameter(espeakRANGE, s->frequency * frequencyMultiplier, 0);
}
static void set_pitch (struct synth_t *s)
{
espeak_SetParameter(espeakPITCH, s->pitch * pitchMultiplier, 0);
@ -104,6 +111,10 @@ static int process_command(struct synth_t *s, char *buf, int start)
if (buf[start+1] == '-')
value = -value;
switch (param) {
case 'f':
s->frequency += value;
set_frequency (s);
break;
case 'p':
s->pitch += value;
set_pitch (s);
@ -122,6 +133,10 @@ static int process_command(struct synth_t *s, char *buf, int start)
value = buf[start+1]-'0';
param = buf[start+2];
switch (param) {
case 'f':
s->frequency = value;
set_frequency (s);
break;
case 'p':
s->pitch = value;
set_pitch (s);
@ -249,6 +264,7 @@ void espeakup_sighandler(int sig)
int main(int argc, char **argv)
{
struct synth_t s = {
.frequency = 5,
.pitch = 5,
.rate = 5,
.voice = "default",
@ -298,6 +314,7 @@ int main(int argc, char **argv)
/* Setup initial voice parameters */
set_voice(&s);
set_frequency (&s);
set_pitch (&s);
set_rate (&s);
set_volume(&s);