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iCoolsoft M4R Converter is designed to help you convert almost all audio files and videos to M4R files, so that you can get M4R ringtone files for your iPhone. Editing function is also provided for you to easily create personalized ringtone. It is the best tool for you to make your own iPhone ringtone from songs, movies and other files. M4R format is used by iPhone to indicate ringtone files, they are encoded in AAC codec. iCoolsoft M4R Converter can directly convert MP3 to M4R, WMA to M4R, M4A to M4R and so on. You can also use it to convert iPhone M4R ringtones to MP3, WMA, OGG and other files for your using on other portable players. It is the best tool to convert M4R files and convert files to M4R. This M4R Converter enables you to specify the start time and end time to get any segment, join multiple sound clips into one file, adjust output quality and listen to the output effect before converting. This tool can help you easily edit source files and create your own ringtone for iPhone. Features Convert video/audio files to M4R This professional M4R converter can convert almost all video and audio files to M4R format, supporting AVI, WMV, ASF, MPEG, MOV, RMVB, FLV, MP4, 3GP, H.264, MKV, MP3, AAC, AC3, AIFF, AMR, AU, FLAC, M4A, MP2, OGG, MKA, WAV, WMA, and so on. M4R to other popular audio formats converting is also supported. Practical features for converting When converting video to M4R, you are allowed to select the audio track to get any sound track as you want. Snapshot function is also provided for you to easily create album cover or thumbnail for your audio files. You are even allowed to set different output formats for the input files, and finish the conversions at a time. Powerful editing functions You can split the source file to get your favorite segment to convert, and merge multiple files into one file for output. This tool allows you to select the output format and adjust the sound quality. Create iPhone ringtones You can u