| Bill Cox | 13ad3b8 | 2010-12-14 15:53:55 -0500 | [diff] [blame] | 1 | .TH SONIC 1 |
| Bill Cox | e0b250c | 2010-11-03 13:23:58 -0400 | [diff] [blame] | 2 | |
| 3 | .SH NAME |
| 4 | sonic \- Speech speed manipulator |
| 5 | |
| 6 | .SH SYNOPSIS |
| Bill Cox | ebebbe4 | 2010-12-13 13:18:44 -0500 | [diff] [blame] | 7 | .B sonic [OPTION]... inFile outFile |
| Bill Cox | e0b250c | 2010-11-03 13:23:58 -0400 | [diff] [blame] | 8 | |
| 9 | .SH DESCRIPTION |
| 10 | Sonic is used to make wav files of speech faster or slower. The primary advance |
| 11 | in sonic is the ability to speed speech up by much more than 2X, with minimal |
| 12 | distortion. However, sonic can be used for both speeding up and slowing down |
| Bill Cox | ebebbe4 | 2010-12-13 13:18:44 -0500 | [diff] [blame] | 13 | speech files. Additionally, sonic can change the pitch and volume. |
| 14 | |
| 15 | .SH OPTIONS |
| 16 | .TP |
| Bill Cox | db3f14d | 2011-04-15 12:43:20 -0400 | [diff] [blame] | 17 | .B \-c |
| 18 | Modify pitch by emulating vocal chords vibrating faster or slower. This causes |
| 19 | more distortion than the default pitch scaling, but sounds more like the same |
| 20 | person trying to talk higher or lower. The default pitch changes makes the |
| 21 | voice sound like a larger or smaller person, but introduces little distortion. |
| 22 | .TP |
| Bill Cox | 975afe1 | 2010-12-17 05:18:00 -0500 | [diff] [blame] | 23 | .B \-p pitch |
| Bill Cox | ebebbe4 | 2010-12-13 13:18:44 -0500 | [diff] [blame] | 24 | Set pitch scaling factor. 1.3 means 30%% higher. |
| 25 | .TP |
| Bill Cox | 975afe1 | 2010-12-17 05:18:00 -0500 | [diff] [blame] | 26 | .B \-q |
| 27 | Disable all speed-up heuristics, possibly improving the quality slightly. This |
| 28 | is mainly used for debugging the speed-up heuristics. |
| 29 | .TP |
| Bill Cox | 3276bb0 | 2011-01-11 07:39:26 -0500 | [diff] [blame] | 30 | .B \-r rate |
| Bill Cox | 1a15418 | 2011-07-16 23:16:40 -0400 | [diff] [blame] | 31 | Adjust the speed of playback. This scales both the pitch and speed equally. |
| Bill Cox | 3276bb0 | 2011-01-11 07:39:26 -0500 | [diff] [blame] | 32 | .TP |
| Bill Cox | 975afe1 | 2010-12-17 05:18:00 -0500 | [diff] [blame] | 33 | .B \-s speed |
| Bill Cox | ebebbe4 | 2010-12-13 13:18:44 -0500 | [diff] [blame] | 34 | Set speed up factor. 1.0 means no change, 2.0 means 2X faster. |
| 35 | .TP |
| Bill Cox | 975afe1 | 2010-12-17 05:18:00 -0500 | [diff] [blame] | 36 | .B \-v scaleFactor |
| 37 | Scale volume by scaleFactor. 1.5 increases by 50%. Clips if the maximum range is |
| 38 | exceeded. |
| Bill Cox | e0b250c | 2010-11-03 13:23:58 -0400 | [diff] [blame] | 39 | |
| 40 | .SH EXAMPLES |
| Bill Cox | ebebbe4 | 2010-12-13 13:18:44 -0500 | [diff] [blame] | 41 | |
| 42 | .B sonic -s 3.2 book.wav book_fast.wav |
| 43 | |
| Bill Cox | e0b250c | 2010-11-03 13:23:58 -0400 | [diff] [blame] | 44 | The above command would increase the speed of an audio book called book.wav by a |
| 45 | factor of 3.2, and write the result in book_fast.wav. |
| Bill Cox | ebebbe4 | 2010-12-13 13:18:44 -0500 | [diff] [blame] | 46 | |
| 47 | .B sonic -s 0.5 -v 1.5 spanish.wav spanish_slow.wav |
| 48 | |
| Bill Cox | 975afe1 | 2010-12-17 05:18:00 -0500 | [diff] [blame] | 49 | This would slow down the file spanish.wav by a factor of 2, make the volume 50% |
| 50 | louder, and write the result to spanish_slow.wav. |
| Bill Cox | ebebbe4 | 2010-12-13 13:18:44 -0500 | [diff] [blame] | 51 | |
| 52 | .B sonic -p 2.0 low.wav high.wav |
| 53 | |
| 54 | This would make a low voice sound very high pitched. |
| 55 | |
| Bill Cox | e0b250c | 2010-11-03 13:23:58 -0400 | [diff] [blame] | 56 | .SH AUTHOR |
| 57 | Bill Cox waywardgeek@gmail.com |
| 58 | .BR |
| Bill Cox | 60eeb06 | 2015-02-27 10:17:45 -0800 | [diff] [blame] | 59 | Sonic Version 0.2, Copyright 2010, Bill Cox, Apache 2.0 license |