遷移程序服務器導致應用聲音添加特效失效,記錄以方便以後安裝配置。
介紹
SoundTouch是一個開源的音頻處理庫，主要實現包含變速、變調、變速同時變調等三個 功能模塊，能夠對媒體流實時操作，也能對音頻文件操作。
下載地址
官方下載地址：http://soundtouch.surina.net/soundtouch-1.9.2.tar.gz
百度下載地址：http://pan.baidu.com/s/1nuCa3VV
安裝方法
解壓tar.gz包
tar cgvf soundtouch-1.9.2.tar.gz
進入解壓目錄
cd soundtouch
執行安裝引導命令，用於生成configure和Make文件
./bootstrap
安裝
./configure --prefix=/usr/local/soundtouch-1.9.2
make & make install
添加MP3組件
cd /usr/local/soundtouch-1.9.2/bin
將soundstretch4Lame放入該目錄下（該文件是一個shell腳本，用於處理mp3文件。soundTouch工具本身並不支持mp3的編碼，需要使用LAME工具對mp3文件進行解碼和編碼操作）。
chmod +x soundstretch4Lame
驗證
[root@home ~]# soundstretch
SoundStretch v1.9.2 - Written by Olli Parviainen 2001 - 2015
==================================================================
author e-mail: <[email protected]> - WWW: http://www.surina.net/soundtouch
This program is subject to (L)GPL license. Run "soundstretch -license" for
more information.
This application processes WAV audio files by modifying the sound tempo,
pitch and playback rate properties independently from each other.
Usage :
soundstretch infilename outfilename [switches]
To use standard input/output pipes, give 'stdin' and 'stdout' as filenames.
Available switches are:
-tempo=n : Change sound tempo by n percents (n=-95..+5000 %)
-pitch=n : Change sound pitch by n semitones (n=-60..+60 semitones)
-rate=n : Change sound rate by n percents (n=-95..+5000 %)
-bpm=n : Detect the BPM rate of sound and adjust tempo to meet 'n' BPMs.
If '=n' is omitted, just detects the BPM rate.
-quick : Use quicker tempo change algorithm (gain speed, lose quality)
-naa : Don't use anti-alias filtering (gain speed, lose quality)
-speech : Tune algorithm for speech processing (default is for music)
-license : Display the program license text (LGPL)