I've put new MP3 songs on the K750i, and also recorded audio using the audio recorder. when coming to play, the phone says "sound cannot be played" and the length is "unknown". any idea why this is happening? thanks.
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MP3 songs are recorded at different levels. Many modern tunes have been deliberately recorded loud by the record companies for maximum effect.
If you are recording the songs yourself some recording software has a "normalize" feature. This increases or reduces the volume of the track to a certain level. Especially useful when you have tracks at different levels. By the way this is how they get CD tracks to play at the same levels. So you don't have to turn up the volume or turn it down every time a new track plays.
Video Demo: http://www.youtube.com/watch?v=4Z8F4ip6Oy4
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If you want to burn a CD you have to make a master. For 2 cd's you have to make 2 masters, one for each recording.
The best way to handle this is to "create a song" for each speech giver and give each a name.This is because you can make only one master copy of a song before burning a Cd.
But another way is to :
1. Make a master of the first speech giver (who is on one track) and record to the Cd.
2. Make a new master of the second speech giver (on the other track) and record to Cd.
As long as you don't mind, the second mastering will overwrite the first one that you did, but then you already have burned a copy of that Cd!
You cannot burn audio CDs from MP3 files. You have to burn MP3 files as a data CD and not as an audio CD. See excerpt taken from page 33 in the CDR420 user guide. "Prepares CDs that can be played on standard CD players. Compact Disc Digital Audio (CDDA) uses uncompressed PCM, .wav files. The CDR420 does not convert MP3 files to PCM so MP3 files are ignored if you choose AUDIO as the CD TYPE"
to record new music to mp3 from a cd just open up windows media player and insert your cd click on rip and there you go your new music should be added to your library there and after that you can sync it to your mp3 player with no problems
If you simply want to overlap the voice, you can do that by recording using any free softwares available on internet (just google free recording softwares) you can try, cooledit as well, one track will contain your file with play mode, one track with record mode (for your voice) then start recording, it will play the song simultaneously with recording your voice. After then, you have to save the mixdown.
other long way is, you have to get KARAOKE for that song (karaoke means, no vocals only music track) then you'll get the recorded song in good quality.