Freesound Forums

Hello,

I´m programming on an application for cellphones right now and I got the task to create a soundlogo. I already worked on a soundlogo for my project and I´m pretty much pleased with it. It sounds good on some cellphones, but others have huge problem to play the soundfile without an acceptable lose of quality.
Ok I accept the fact that some devices just don´t have such a good hardware, but there must be things that sound designers can/should consider, because there are still soundfiles that just sound good on these devices, right?

My product is designed for newer cellphones. The soundlogo is a simpel mp3 file with 96kbit/s and 48khZ. I don´t really want to lower the frequency because the sound seams to need at least 40k (eh... I´m no soundprofi, but my ears say it ^^) and I don´t want to switch to .midi files.

Are there any tipps or "rules" that someone should consider when he makes a soundfile that should sound good on as many devices as possible?

Please note: I won´t post my soundlogo as example. So please don´t ask for it when you want to give me more detailed tipps.

Thx in advice

If you have a 48 khz based music project, and you pipe it through a 96 kb/s mp3 coder, then the quality of the 96 mp3 is what determines how your tune sounds on a phone. All high frequencies, so good preserved by the 48 khz, will get squashed by the mediocre mp3 setting. Maybe your tune demands too much of the higher audio spectrum. Increase the setting to 128 or more? Do you have a quality mp3 coder? If you only play on small devices with tiny speakers, you can filter out most of the bottom end of the sound. Don't know if this helps. Just thinking out loud.

Bauzi
Hello,

...

Thx in advice

1. Choose mid-range/over-tone rich source sounds, piano, metallic chimes, percussive instruments.
2. High-pass filter the sound prior to MP3 encoding. You want more mid and high frequency sounds. I'd hard-filter anything below 100-200 Hz.
3. heavily compress the sample.
5. Use an mp3 encoding of at least 128 kbps.

digifish

Thanks for your advices. An higher bitrate already worked. I look forward to use more of your suggestions in future works =D