Oke, here come my problem. I’m trying to create a sound looping engine in Flash, and because I don’t want files to be embedded in the FLA (in the library) I only can use MP3 as a sound file which I can load dynamically. <\/p>\n
I didn’t know this, but mp3 has a silence at the end of the song, and sometimes also at the beginning of the song (and sometimes both).
\nOther file, files without compression like WAV, don’t have this problem.<\/p>\n
I don’t want to get to deep into this problem, but if you’re interested in the problem and you need to read more about it: about gapless playback: Gapless playback<\/a> and LAME tech FAQ<\/a>.<\/p>\n I remember from AS2 the looping problem, but I hoped it was fixed in AS3. A colleague of mine (Boy Wonder<\/a>) gave me a beat so I could go to work.<\/p>\n First convert the beat from WAV to MP3: I used Audacity<\/a>, an open source software for recording and editing sound.<\/p>\n Oke, the only thing I needed is to load the file (because it’s a local test, there is no loading) and hear if it worked:<\/p>\n No, it didn’t loop correctly<\/strong><\/p>\n Open the newly generated MP3, and there they are: the silence at the beginning and at the end of the song. I could use Audacity to remove it, but I use another program for that: mptrim<\/a>. <\/p>\n mpTrim is a simple and easy to use MP3 editor.<\/p>\n mpTrim has an auto function for removing silent, so that’s very easy.<\/p>\n But after loading the new mp3 without silence, the hiccup was much smaller, but still there.<\/p>\n The last try would be to fix it in code: I was thinking about a earlier starting a loop (0.02 second) but with a lot of tracks this would probably be very cpu intensive. Because I have a hard head, and I need to make the same mistakes everyone makes…. So a dynamically loaded MP3 loops in flash will never work. The only way to get good loops is with WAV imported in the FLA (library) and use linkage<\/p>\n \ud83d\ude41<\/p>\n","protected":false},"excerpt":{"rendered":" Oke, here come my problem. I’m trying to create a sound looping engine in Flash, and because I don’t want files to be embedded in the FLA (in the library) I only can use MP3 as a sound file which I can load dynamically. I didn’t know this, but mp3 has a silence at the […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,3],"tags":[39,408,189,398,191,190,42,188],"class_list":["post-478","post","type-post","status-publish","format-standard","hentry","category-as3","category-flash","tag-as2","tag-as3","tag-audacity","tag-flash","tag-gapless-playback","tag-mptrim","tag-open-source","tag-open-source-software"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/posts\/478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/comments?post=478"}],"version-history":[{"count":10,"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/posts\/478\/revisions"}],"predecessor-version":[{"id":944,"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/posts\/478\/revisions\/944"}],"wp:attachment":[{"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/media?parent=478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/categories?post=478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.matthijskamstra.nl\/blog\/wp-json\/wp\/v2\/tags?post=478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nSo this is what I tried to do:<\/p>\n#1 – First try<\/h3>\n
\r\n\/\/ AS3\r\nprivate var url:String = \"MySound.mp3\";\r\nprivate var song:SoundChannel;\r\nvar request:URLRequest = new URLRequest(url);\r\nvar soundFactory:Sound = new Sound();\r\nsoundFactory.load(request);\r\nsong = soundFactory.play(0, int.MAX_VALUE); \r\n<\/pre>\n
#2 – Second try<\/h3>\n
\n
#3 – Third try (neeeh forget it)<\/h3>\n
\nA quick search on the Internet, I couldn’t find a solution in code. It’s a bug in Flash and people that are more into sound then I am, are working hard to move Adobe to change some of the sound features in Flash: http:\/\/www.make-some-noise.info\/<\/a><\/p>\nConclusion<\/h3>\n
\nBut after all I have to conclude: It can’t<\/strong> be done, you will eventually get a hiccup in the loop.
\nIt’s impossible to fix this problem.<\/p>\n