diff options
Diffstat (limited to 'libaf/af_scaletempo.c')
| -rw-r--r-- | libaf/af_scaletempo.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/libaf/af_scaletempo.c b/libaf/af_scaletempo.c index cc9b4c71bb..d09fe950b5 100644 --- a/libaf/af_scaletempo.c +++ b/libaf/af_scaletempo.c @@ -1,5 +1,17 @@ /* * scaletempo audio filter + * + * scale tempo while maintaining pitch + * (WSOLA technique with cross correlation) + * inspired by SoundTouch library by Olli Parviainen + * + * basic algorithm + * - produce 'stride' output samples per loop + * - consume stride*scale input samples per loop + * + * to produce smoother transitions between strides, blend next overlap + * samples from last stride with correlated samples of current input + * * Copyright (c) 2007 Robert Juliano * * This file is part of MPlayer. @@ -14,21 +26,9 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with MPlayer; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * scale tempo while maintaining pitch - * (WSOLA technique with cross correlation) - * inspired by SoundTouch library by Olli Parviainen - * - * basic algorithm - * - produce 'stride' output samples per loop - * - consume stride*scale input samples per loop - * - * to produce smoother transitions between strides, blend next overlap - * samples from last stride with correlated samples of current input - * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include <stdlib.h> |