How to EQ a recorded Phone Conversation

[cksbcville]

Hello - I recently (with legal permission for business purposes) recorded a conference call/presentation made via telephone. I am trying to EQ it and I remember that phones boost certain areas of EQ and cut out others, does anyone know specifically which bands the phones mess with? And does any one have suggestions for trying to get the phone conversation to sound more normal? (either with just EQ or using a combination of plugins?)

[sbag]

sweep the eq & use use a compressor to boost low parts and bring them out
A 10 band eq would work great so you can get in all frequencies

[bblue]

Originally Posted by cksbcville

Hello - I recently (with legal permission for business purposes) recorded a conference call/presentation made via telephone. I am trying to EQ it and I remember that phones boost certain areas of EQ and cut out others, does anyone know specifically which bands the phones mess with? And does any one have suggestions for trying to get the phone conversation to sound more normal? (either with just EQ or using a combination of plugins?)

In most cases, the telephone frequency response is around 150-3khz. It's not so much that they (telcos) manipulate the frequencies in that range (the difference in telephones is the largest contributor to that) it's just the range itself. How you tweak it for clarity will depend strongly on the telephone used and characteristics of the voice (and of course, any background noises that might obscure parts of the vocal).

--Bill

[TOM@METRO]

The ugliest part is usually between 600Hz and 2 kHz, but as they said, you will find it easily with an EQ sweep.