[1.29.10] Change the harmonic for formants 6,7,8 only at cycle quiet points, not every 64 cycles. This reduces noise clicks.

Fix agc, not applied correctly when echo is set.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@91 d46cf337-b52f-0410-862d-fd96e6ae7743

dictsource/en_rules

             ie (ntal     I'E
          g) ie (n        i:
        _sc) ie (n        aI@
+?8     _sc) ie (n        aIa2
             ie (nCiA     I2'E
         fr) ie (nd       E
          f) ie (nd       i:

dictsource/hu_rules

 hierar) ch (i    C
     me) ch (a    C
     te) ch (n    C
-   _pe) ch       C
   pszi) ch       C
   pszy) ch       C
    mün) ch (en   C
   maso) ch (istA C
  monar) ch (i    C
+   _pe) ch     C
    szé) ch       tS
    _zi) ch (y    tS
 
 _nyílá) s        S
     _o) slo      slo:
     _o) sló      slo:
+  tojá) s        S
 
         sz (öld  Sz
     va) s (zabl  S||
     má) zc (sz   z
     mé) zc (sz   z
   nehé) z (sé    z
+   pén) z        z
    szá) z (sz    z
     tű) z (sz    z
     ví) z (sz    z

phsource/compile_report

   3  vdiph/0i_2     en_sc no en_wi
   3  vdiph2/e@      en_sc en_wi
   1  vdiph2/ea      ro
+  1  vdiph2/ei_3    en_wm
   1  vdiph2/eo      ro
   1  vdiph2/e[u     ro
   1  vdiph2/i@      en_n
   1  vowel/@-       base
   4  vowel/&        en_rp fi hi sv
   4  vowel/0        base2 en hi pt
-  4  vowel/0_2      en_n en_wm pt_pt sw
-  4  vowel/0_3      en_us en_sc en_rp hu
+  3  vowel/0_2      en_n pt_pt sw
+  5  vowel/0_3      en_us en_sc en_rp en_wm hu
   2  vowel/@_2      fr
   2  vowel/&_2      en_us
   6  vowel/@_3      en_sc de hi
   2  vowel/aa_8     en_us
   3  vowel/a_en     en fr
   1  vowel/@_bck    hi
- 16  vowel/e        base2 en en_n af cy eo fr hr it la pt pt_pt ++
+ 17  vowel/e        base2 en en_n en_wm af cy eo fr hr it la pt ++
   2  vowel/e#       en_sc
   7  vowel/e_2      en_sc de hi it sv no
   1  vowel/e_3      hu
   1  vowel/e_5      en_sc
   3  vowel/ee       fr pl sv
   2  vowel/e_e      en_sc is
-  9  vowel/ee_1     base2 en en_n en_wm pl la sv no zhy
+  8  vowel/ee_1     base2 en en_n pl la sv no zhy
   4  vowel/ee_2     en en_us cy nl
   1  vowel/ee#_2    sv
   4  vowel/ee_3     af pt vi
   1  vwl_en_us/oor  en_us
   3  vwl_en_us/or   en_us en_sc
   1  vwl_en_us/ur   en_us
-  1  vwl_en_wm/i    en_wm
   3  vwl_fr/@R      fr pt_pt
   1  vwl_fr/@R2     fr_ca
   1  vwl_hi/A       hi
   1  w/wa           base
   1  w/we           base
   3  w/wi           base vi zhy
- 12  w/wi2          en en_n en_us en_sc en_rp en_wm de nl la sv no
+ 11  w/wi2          en en_n en_us en_sc en_rp de nl la sv no
   1  w/wo           base
   1  w/wu           base
   5  w/xw           base

phsource/ph_english_wi

 
 phoneme i:
   vowel  starttype (i)  endtype (i)
-  length 175
+  length 190
   formants vowel/i_fnt
   linkout ;
 endphoneme

phsource/ph_english_wm

 phoneme E
   vowel  starttype (e)  endtype (e)
   length 150
-  formants vowel/ee_1
+  formants vowel/e
+//  formants vowel/ee_1
   reduceto I  0
 endphoneme
 
 phoneme 0
   vowel  starttype (o)   endtype (o)
   length 140
-  formants vowel/0_2
+  formants vowel/0_3
   reduceto @  0
 endphoneme
 
 
 
 phoneme i:
-  vowel  starttype (i)  endtype (i)
+  vowel  starttype (e)  endtype (i)
   length 220
-  formants vwl_en_wm/i
-  after w w/wi2
+  formants vdiph2/ei_3
+//  after w w/wi2
   linkout ;
 endphoneme
 
   vowel  starttype (u)  endtype (u)
   length 200
   formants vdiph/@u
-//  before l/ vwl_en/u:L2-40+L/uL
 endphoneme
 
 

src/synthdata.cpp

 #include "translate.h"
 #include "wave.h"
 
-const char *version_string = "1.29.07  17.Sep.07";
+const char *version_string = "1.29.10  16.Oct.07";
 const int version_phdata  = 0x012901;
 
 int option_device_number = -1;

src/wavegen.cpp

 	echo_head = (delay * samplerate)/1000;
 	echo_length = echo_head;       // ensure completion of echo at the end of speech
 //	echo_length = echo_head * 2;    // perhaps allow 2 echo periods at the end of speech ?
+
+	// echo_amp units are 1/256ths of the amplitude of the original sound. 
 	echo_amp = amp;
 	// compensate (partially) for increase in amplitude due to echo
 	general_amplitude = GetAmplitude();
-	general_amplitude = ((general_amplitude * (512-amp))/512);
+	general_amplitude = ((general_amplitude * (500-amp))/500);
 }  // end of WavegenSetEcho
 
 
 // Calculate the amplitude of each  harmonics from the formants
 // Only for formants 0 to 5
 
+// control 0=initial call, 1=every 64 cycles
+
    // pitch and freqs are Hz<<16
 
 	int f;
 	// find the nearest harmonic for HF peaks where we don't use shape
 	for(; pk<N_PEAKS; pk++)
 	{
-		peak_harmonic[pk] = peaks[pk].freq / pitch;
 		x = peaks[pk].height >> 14;
 		peak_height[pk] = (x * x * 5)/2;
 
+		// find the nearest harmonic for HF peaks where we don't use shape
+		if(control == 0)
+		{
+			// set this initially, but make changes only at the quiet point
+			peak_harmonic[pk] = peaks[pk].freq / pitch;
+		}
 		// only use harmonics up to half the samplerate
 		if(peak_harmonic[pk] >= hmax_samplerate)
 			peak_height[pk] = 0;
 	int h;
 	int ix;
 	int z, z1, z2;
+	int echo;
 	int ov;
 	static int maxh, maxh2;
 	int pk;
 
 				cycle_count++;
 
+				for(pk=wvoice->n_harmonic_peaks+1; pk<N_PEAKS; pk++)
+				{
+					// find the nearest harmonic for HF peaks where we don't use shape
+					peak_harmonic[pk] = peaks[pk].freq / (pitch*16);
+				}
+
 				// adjust amplitude to compensate for fewer harmonics at higher pitch
 				amplitude2 = (amplitude * pitch)/(100 << 11);
 
 		}
 
 		z1 = z2 + (((total>>7) * amplitude2) >> 14);
-		z = (z1 * agc) >> 8;
 
-		z += ((echo_buf[echo_tail++] * echo_amp) >> 8);
+		echo = (echo_buf[echo_tail++] * echo_amp);
+		z1 += echo >> 8;
 		if(echo_tail >= N_ECHO_BUF)
 			echo_tail=0;
 
+		z = (z1 * agc) >> 8;
+
 		// check for overflow, 16bit signed samples
 		if(z >= 32768)
 		{