After talking to numerous people about how to improve the sound quality on their particular device, it seems this is an appropriate venue.
Maybe this can save some time for current and new developers. I wonder how many new developers attempt to "fix" an audio problem without knowing that a fix is either not necessary or futile. In particular, with Beats Audio being the new fad. This post is for everyone... newbies, moderate and advanced users/developers. I hope this helps.
First, file format is the number one factor in sound quality. MP3s basically suck... and Apple's file format is not much better. So much audio information is lost due to compression that no matter how good the amp or headphones one uses, they do nothing to improve the inherent quality.
2. Always use .FLAC or .WAV for lossless and best sound possible.
3. Beats Audio is not much more than a gimmick. To hear the intention of the artist, one should listen to the music 'flat ' with no equalization at all. Otherwise, if you really like to enhance the bass, then just use the basic bass tone control on your favorite audio player.
4. I recommend the Sennhieser Headphones with the best frequency response you can afford. This is just a recommendation, so use what ever company you favor. Just look for frequency response to ensure you are hearing all the music is outputting. If you love bass, then the low end of frequency should be around 25 or 30 Hz. High end should not be below 15kHz. Optimally, your cans should reproduce 20Hz to 20kHz.
5. I use Power Amp app on my X2 because it plays all audio files... I don't know all the apps available that play WAV and FLAC, but ensure it does.
6. The headphone jack is the best quality save the HDMI port... unless someone finds a way to export audio from the USB port. This can be a legitimate goal for developers!
Bluetooth or any over-the-air method degrades the audio to at least some degree (Bluetooth is probably the worse).
7. For super audio files, get your music at www.hdtracks.com. This is the only place I've found that sells super audio files online.
Otherwise, rip directly from CD or DVD to WAV or FLAC. NEVER move from an MP3 (or other compressed format) to WAV or FLAC. Just remember, quality in = quality out.
I hope this helps those who care about music quality and inspires developers to improve upon the technology available. Thank you for your time!
Droid X2 CM7
Droid X2 CM7