Thanks to you and Gino! I'm getting some more clues. This truly is a vexing problem as I have NEVER had this problem with any of my clients and I believe my current client has the bare minimum system to get the job done. I've delivered 8bit/8khz .wav u-law before with no probs. I'm trying to get ahold of somebody with the system provider to get more clues. Just what i wanted to become, an expert on music -on-hold conversion procedures :>)
Thanks again
fritz
Thanks again
fritz
-----Original Message-----
From: Bruce Daily <pocotron@yahoo.com>
To: newmellotrongroup <newmellotrongroup@yahoogroups.com>
Sent: Thu, Jan 10, 2013 5:24 pm
Subject: Re: [newmellotrongroup] off topic help
From: Bruce Daily <pocotron@yahoo.com>
To: newmellotrongroup <newmellotrongroup@yahoogroups.com>
Sent: Thu, Jan 10, 2013 5:24 pm
Subject: Re: [newmellotrongroup] off topic help
Hi Fritz-
Gino may be thinking what I was thinking. EQ it first, with a bandpass between 300 Hz and 4 KHz (close to landline response). This keeps outside frequencies from interfering in the A-D conversion. THEN convert it to digital.
Hope this helps.
-Bruce D.
From: gino wong <wonggster@gmail.com>
To: newmellotrongroup@yahoogroups.com
Sent: Thursday, January 10, 2013 1:04 PM
Subject: Re: [newmellotrongroup] off topic help
To: newmellotrongroup@yahoogroups.com
Sent: Thursday, January 10, 2013 1:04 PM
Subject: Re: [newmellotrongroup] off topic help
This stuff can be hard. If it were analog I would go 250 nanowebers to forstall any chance of distortion.
I haven’t been in this specific situation but. I have found that you end up questioning the specs in this range.
I would make sure you are getting true 8 bit and not 4 or 2. or just cause it says 8 bit are entitled to use it from your point of entry or does it burned onto rooms or pushed into dialogic chip banks.
You may end up using a KSU as a Preamp and monitor
Did you know that EQ”s were invented for phone systems ?
best
gino
--
On Thu, Jan 10, 2013 at 2:28 PM, <fdoddy@aol.com> wrote:
sorry for the typo..it's u-law...
fritz
-----Original Message-----
From: fdoddy <fdoddy@aol.com>
To: newmellotrongroup <newmellotrongroup@yahoogroups.com>
Sent: Thu, Jan 10, 2013 2:16 pm
Subject: [newmellotrongroup] off topic help
Folks,
I am trying to format a file for a client for their music on hold. Their conversion spec is 8bit/8khz mono .wav (u-plaw).
I have been unsuccessful in having this sound reasonable after it goes into their AVIA phone system due to the GSM compression. I can get the converted file to sound reasonable, but once it's out of my hands and actually in the system it sounds like shit. I realize there is a good deal of degradation due to the GSM compression, but am at a loss what to do to improve the quality. Anyone have any experience with this and have any tips?
Thanks,
fritz
Gino Wong Birgelo
BSComm, BSEE,
ReRED Recording, Analog Sound Design