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Clean-up and Enhancement

Izotope spectograph of audio      Sound processing software has made substantial leaps in recent years.  In addition to merely sampling the background noise floor and minimizing it, it is now possible to target individual elements in an audio recording, either by dedicated algorithms or, when the audio is viewed in spectrograph form (see photo), visually.  This enables us to suppress, or in some cases, effectively remove unwanted background noises or specific sounds.

        The next step in this process is enhancement, whereby frequencies above and below the voice spectrum are filtered out.  Additionally, if applicable, we can suppress echoes and reverberation which tend to obscure clear speech.  Finally, compression is applied to boost low-level or quiet passages.

        This enhancement process is not a 'paint-by-numbers' affair.  The incorrect or excessive application of processing at any step can actually worsen the fidelity of the voice portion of the recording.  It takes the discerning ear of a trained audio professional to carefully apply the various processes in the right order and in the proper manner to coax the recording along toward maximum intelligability.

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Clarion Labs · 3253 E. Grant Rd. · Tucson, AZ 85716