Processing

Processing can include editing to remove unwanted pauses, coughs etc.

Also, compression is an option, where quiet parts are lifted to a similar level to the loudest.

Equalisation is also available, which is basically a sophisticated tone-control adjustment. Additional equalisation is normally required for files such as mp3 and Real. Windows Media Files don't normally require this, because they provide a better "treble" response.

Noise reduction: hiss, interference "clicks" and sometimes whistles and hum can be reduced.

Mono and stereo files can be processed, although stereo files may not play uninterrupted through slower modems.

*Formats available: mp3, wma or real

"Treble response" in technical terms: The top roll-off of a web mp3 file* is typically 5kHz, whereas for a wma (Windows Media File) it is typically 10kHz. Therefore, the Wma file will sound brighter and clearer.

*Suitable for listening on a 33kbps dial-up modem

Hear an example of processing an originally poor quality sound file (you may need to download first if using a dial-up modem):