Synth-DIY Yahoo! Groups Archives

off topic help

2013-01-10 by fdoddy@aol.com

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

Re: [newmellotrongroup] off topic help

2013-01-10 by fdoddy@aol.com

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

Re: [newmellotrongroup] off topic help

2013-01-10 by gino wong

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

Audio Mastering, Recording & Restoration, Logistics

Ginowong@gmail.com

Re: [newmellotrongroup] off topic help

2013-01-10 by Bruce Daily

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

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

Audio Mastering, Recording & Restoration, Logistics

Ginowong@gmail.com

Re: [newmellotrongroup] off topic help

2013-01-10 by Bruce Daily

Oops, I forgot to mention, that 4KHz is also the theoretical upper limit of the 8KHz sample rate. Anything above 3-4KHz is useless info, and may interfere.

-Bruce D. (again)

From: Bruce Daily <pocotron@yahoo.com>
To: "newmellotrongroup@yahoogroups.com" <newmellotrongroup@yahoogroups.com>
Sent: Thursday, January 10, 2013 3:24 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

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

Audio Mastering, Recording & Restoration, Logistics

Ginowong@gmail.com

Re: [newmellotrongroup] off topic help

2013-01-10 by fdoddy@aol.com

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

-----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

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

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

Audio Mastering, Recording & Restoration, Logistics

Ginowong@gmail.com

Re: off topic help

2013-01-11 by feline1973

Fritz, see if you can get hold of a GSM compression plugin, so you can degrade the signal as much as the client will be doing, and thus try and find music that still works under those conditions!

Also, maybe check with them as to what level of compression settings they are using on their system. Perhaps they can improve their settings?

--- In newmellotrongroup@yahoogroups.com, fdoddy@... wrote:
>
> 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
>

Re: [newmellotrongroup] Re: off topic help

2013-01-11 by fdoddy@aol.com

Thanks for the reply. The GSM plugs I've tried don't seem to be accurate enough. They are merely a series of filters and what-not to simulate the output. The damage is coming from the conversion. I have more faith in your second suggestion and will be pursuing this path to its logical conclusion.

Thanks again!

Also, maybe check with them as to what level of compression settings they are using on their system. Perhaps they can improve their settings?

-----Original Message-----
From: feline1973 <feline1@feline1.co.uk>
To: newmellotrongroup <newmellotrongroup@yahoogroups.com>
Sent: Fri, Jan 11, 2013 5:45 pm
Subject: [newmellotrongroup] Re: off topic help

Fritz, see if you can get hold of a GSM compression plugin, so you can degrade the signal as much as the client will be doing, and thus try and find music that still works under those conditions!

Also, maybe check with them as to what level of compression settings they are using on their system. Perhaps they can improve their settings?

--- In newmellotrongroup@yahoogroups.com, fdoddy@... wrote:
>
> 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
>