Additional sfz files won't make sound.

[Daniel Brower]

I added additional sfz files and added the file names in the exsPresets array, but when I tap on the keyboard with those sfz files selected, no sound comes out.

[Shane Dunne]

AKSampler is not a full SFZ player. It supports only a very limited subset of the SFZ format, as described here:
https://github.com/AudioKit/AudioKit/blob/v4.2/Documentation/PreparingSampleSets.md

[Zhou Hao]

I used Wavepack to convert all wav files to wv. But still no sound. Any specs to tell what kind of samples can be played in ROMPlayer? Thanks.

I move the samples to original samples folder and modifed my .sfz file like original .sfz. It works. So that means the samples has no problem at all. The problem is from the .sfz itself. Why?

This is my original sfz:

<control>

<global>

<group> 

ampeg_release=5

<region> sample=samples/JJM_83_1_master.wv lokey=70 hikey=83 pitch_keycenter=83 seq_length=4 seq_position=1 tune=-37
<region> sample=samples/JJM_83_2_master.wv lokey=70 hikey=83 pitch_keycenter=83 seq_length=4 seq_position=2 tune=-37
<region> sample=samples/JJM_83_3_master.wv lokey=70 hikey=83 pitch_keycenter=83 seq_length=4 seq_position=3 tune=-37
<region> sample=samples/JJM_83_4_master.wv lokey=70 hikey=83 pitch_keycenter=83 seq_length=4 seq_position=4 tune=-37

<region> sample=samples/JJM_85_1_master.wv lokey=84 hikey=85 pitch_keycenter=85 seq_length=4 seq_position=1 tune=-6
<region> sample=samples/JJM_85_2_master.wv lokey=84 hikey=85 pitch_keycenter=85 seq_length=4 seq_position=2 tune=-6
<region> sample=samples/JJM_85_3_master.wv lokey=84 hikey=85 pitch_keycenter=85 seq_length=4 seq_position=3 tune=-6
<region> sample=samples/JJM_85_4_master.wv lokey=84 hikey=85 pitch_keycenter=85 seq_length=4 seq_position=4 tune=-6

<region> sample=samples/JJM_88_1_master.wv lokey=86 hikey=88 pitch_keycenter=88 seq_length=4 seq_position=1
<region> sample=samples/JJM_88_2_master.wv lokey=86 hikey=88 pitch_keycenter=88 seq_length=4 seq_position=2
<region> sample=samples/JJM_88_3_master.wv lokey=86 hikey=88 pitch_keycenter=88 seq_length=4 seq_position=3
<region> sample=samples/JJM_88_4_master.wv lokey=86 hikey=88 pitch_keycenter=88 seq_length=4 seq_position=4

<region> sample=samples/JJM_91_1_master.wv lokey=89 hikey=91 pitch_keycenter=91 seq_length=4 seq_position=1
<region> sample=samples/JJM_91_2_master.wv lokey=89 hikey=91 pitch_keycenter=91 seq_length=4 seq_position=2
<region> sample=samples/JJM_91_3_master.wv lokey=89 hikey=91 pitch_keycenter=91 seq_length=4 seq_position=3
<region> sample=samples/JJM_91_4_master.wv lokey=89 hikey=91 pitch_keycenter=91 seq_length=4 seq_position=4

<region> sample=samples/JJM_93_1_master.wv lokey=92 hikey=93 pitch_keycenter=93 seq_length=4 seq_position=1
<region> sample=samples/JJM_93_2_master.wv lokey=92 hikey=93 pitch_keycenter=93 seq_length=4 seq_position=2
<region> sample=samples/JJM_93_3_master.wv lokey=92 hikey=93 pitch_keycenter=93 seq_length=4 seq_position=3
<region> sample=samples/JJM_93_4_master.wv lokey=92 hikey=93 pitch_keycenter=93 seq_length=4 seq_position=4

<region> sample=samples/JJM_95_1_master.wv lokey=94 hikey=95 pitch_keycenter=95 seq_length=4 seq_position=1
<region> sample=samples/JJM_95_2_master.wv lokey=94 hikey=95 pitch_keycenter=95 seq_length=4 seq_position=2
<region> sample=samples/JJM_95_3_master.wv lokey=94 hikey=95 pitch_keycenter=95 seq_length=4 seq_position=3
<region> sample=samples/JJM_95_4_master.wv lokey=94 hikey=95 pitch_keycenter=95 seq_length=4 seq_position=4

<region> sample=samples/JJM_96_1_master.wv lokey=96 hikey=98 pitch_keycenter=96 seq_length=4 seq_position=1
<region> sample=samples/JJM_96_2_master.wv lokey=96 hikey=98 pitch_keycenter=96 seq_length=4 seq_position=2
<region> sample=samples/JJM_96_3_master.wv lokey=96 hikey=98 pitch_keycenter=96 seq_length=4 seq_position=3
<region> sample=samples/JJM_96_4_master.wv lokey=96 hikey=98 pitch_keycenter=96 seq_length=4 seq_position=4

It doesn't work. The modified one:

<group>lokey=0 hikey=51 pitch_keycenter=48 pitch_keytrack=100
  <region> lovel=000 hivel=127 amp_velcurve_127=1 loop_mode=loop_sustain loop_start=105304 loop_end=271114 sample=samples/JJM_83_1_master.wv
<group>lokey=52 hikey=57 pitch_keycenter=54 pitch_keytrack=100
  <region> lovel=000 hivel=127 amp_velcurve_127=1 loop_mode=loop_sustain loop_start=105125 loop_end=246095 sample=samples/JJM_83_2_master.wv
<group>lokey=58 hikey=63 pitch_keycenter=60 pitch_keytrack=100
  <region> lovel=000 hivel=127 amp_velcurve_127=1 loop_mode=loop_sustain loop_start=105123 loop_end=309491 sample=samples/JJM_83_3_master.wv
<group>lokey=64 hikey=69 pitch_keycenter=66 pitch_keytrack=100
  <region> lovel=000 hivel=127 amp_velcurve_127=1 loop_mode=loop_sustain loop_start=105139 loop_end=193695 sample=samples/JJM_83_4_master.wv
<group>lokey=70 hikey=75 pitch_keycenter=72 pitch_keytrack=100
  <region> lovel=000 hivel=127 amp_velcurve_127=1 loop_mode=loop_sustain loop_start=105312 loop_end=331137 sample=samples/JJM_83_5_master.wv
<group>lokey=76 hikey=81 pitch_keycenter=78 pitch_keytrack=100
  <region> lovel=000 hivel=127 amp_velcurve_127=1 loop_mode=loop_sustain loop_start=105276 loop_end=331319 sample=samples/JJM_83_6_master.wv
<group>lokey=82 hikey=127 pitch_keycenter=84 pitch_keytrack=100
  <region> lovel=000 hivel=127 amp_velcurve_127=1 loop_mode=loop_sustain loop_start=105247 loop_end=243815 sample=samples/JJM_83_7_master.wv

[Shane Dunne]

The problem is from the .sfz itself. Why?

Please read my original reply above, where I said "AKSampler is not a full SFZ player" and gave a link to the exact format. That is "why".

Also, note you don't have to convert .wav to .wv. That's just a way to reduce app download size. If you get the ".sfz" format correct, you can use .wav files, or .aif files, etc.