| |||
| audio | |||
| audio (Sound within the range of perception by the human ear -- from about 15 to 20,000 hertz (cycles per second)) | |||
| |||
| audio | |||
|
audio : 77 phrases, 19 sujets |
| |||
| audio | |||
| audio (Sound within the range of perception by the human ear -- from about 15 to 20,000 hertz (cycles per second)) | |||
| |||
| audio | |||
|
audio : 77 phrases, 19 sujets |