You can use the atempo filter in ffmpeg 1.0 and later: ffmpeg -i input.wav -f:a atempo=1.25 output.wav atempo only accepts values between 0.5 and 2.0, but you can bypass the limitation by chaining multiple filters: ffmpeg -i input.wav -f:a atempo=2,atempo=1.5 output.wav
Update: working example near bottom. This depends greatly on which browser you are using at the moment, due to an evolving spec. In the specification and Firefox, peer connections are now fundamentally track-based, and do not depend on local stream associations. You have var sender = pc.addTrack(track, stream), pc.removeTrack(sender), and even sender.replaceTrack(track), the latter involving … Read more
I have solved my problem. Here is my complete native code for OpenSL ES in case of anybody need this : #include <jni.h> #include<android/log.h> // LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog 넣어주세요 #define LOGV(…) __android_log_print(ANDROID_LOG_VERBOSE, “OSLESMediaPlayer”, __VA_ARGS__) #define LOGD(…) __android_log_print(ANDROID_LOG_DEBUG , “OSLESMediaPlayer”, __VA_ARGS__) #define LOGI(…) __android_log_print(ANDROID_LOG_INFO , “OSLESMediaPlayer”, __VA_ARGS__) #define LOGW(…) __android_log_print(ANDROID_LOG_WARN , “OSLESMediaPlayer”, __VA_ARGS__) #define LOGE(…) … Read more
Sound pool is actually audio mixer. It can play short clips only regardless of whether they are encoded as ogg or mp3 or they are uncompressed. Sound pool always store them in memory uncompressed, and you must know that limit is 1 MB. If your clip is too big in memory, sound pool will fall … Read more