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Audio Quality Issues


zktech

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We are now running Dial Dictate and have all of our configurations set correctly. The issue we are having is some of the audio files have distortion and echo in them. We are running from a PRI gateway to our Astrisk PBX and the DD system registers with the Asterisk server. All calls are being recorded on the Asterisk server as well. When we find a file that has an issue on the DD system we go listen to the one on the Asterisk server and it does not have the flaws in it.

 

Does any one have any idea why DD would distort files durring the recording process. We are recording to GSM 11.000 format?

 

The system is a Dual Processor Xeon box with mirrored SCSI drives and 3GB Ram running XP Pro SP3 no other applications are on the box

 

Any advise is apperciated.

 

Thanks

zktech

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  • 1 month later...
Guest N.C.H a.n
We are now running Dial Dictate and have all of our configurations set correctly. The issue we are having is some of the audio files have distortion and echo in them. We are running from a PRI gateway to our Astrisk PBX and the DD system registers with the Asterisk server. All calls are being recorded on the Asterisk server as well. When we find a file that has an issue on the DD system we go listen to the one on the Asterisk server and it does not have the flaws in it.

 

Does any one have any idea why DD would distort files durring the recording process. We are recording to GSM 11.000 format?

 

The system is a Dual Processor Xeon box with mirrored SCSI drives and 3GB Ram running XP Pro SP3 no other applications are on the box

 

Any advise is apperciated.

 

Thanks

zktech

Hi,

 

If the server is doing something very intensive at the time of recording, that could be cause a weird issue like that.

I would suggest changing the record format and see if it goes away.

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  • 5 weeks later...

The servers are dedicated to just dial dictate. We changed the recording format to uncompressed PCM and the quality jumped through the roof. I am now doing a audio recompression pass on another computer. This gives us much higher quality than recording to the more compressed formats on the dial dictate servers. It appears that there are some major quality issues that are occurring when recording to some of the more compressed formats using dial dictate.

 

For reference our Dial Dictate servers are as follows.

Server 1

XP Pro SP 3

1U HP Dual Xeon 3.4GHZ

3GB or RAM

Mirrored 80GB 15K Scsi drives

 

Server 2

XP Pro SP 3

Mid Tower Intel Server 3.0 Dual Core

3GB or RAM

Mirrored 120GB 10K Sata Drives

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