Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I am playing a song in Cocos2D iphone using this line.
[[SimpleAudioEngine sharedEngine] playEffect:@"song.mp3"];
Suppose the mp3 is 1 min long, I want to play the song from 10 sec to 20 sec. Is it possible in Cocos2D iphone. Please help.
I don’t think it is possible to “play the song from 10 sec to 20 sec” using the audio engine of cocos2d-iphone (which is named CocosDeshion).
SimpleAudioEngine is the main interface to CocosDeshion. Basically in cocos2d development we use audio files in two way – sound effect (short) and background music (long and usually loop). playEffect: is for the short ones, while playBackgroundMusic: and playBackgroundMusic:loop: is for the long ones. preloadBackgroundMusic: provides you the ability to cache the music in memory to avoid lag while playing, since they are often in compressed format.
As you can see in the documentation of SimpleAudioEngine (link above), there isn’t such method for you to play a part of an audio file. Even the underlying class CDAudioManager doesn’t support this.
I suggest to extract the 0:10 – 0:20 part as a separate audio file. But if you have a special reason to do this, you may want to use audio playback interfaces (such as AVAudioPlayer) in iOS SDK directly. Please refer to: http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html