VOICE QUALITY ON IVR

[Jean Paul Enerst]

Hi Gents,

Before all thank you for your help. Your experience and expertise are greatly appreciated.

Here you go...

I have a VOIP cluster setup as follow: PSTN -->> CUBE --->>> CUCM --->> UNITY and PTSN ---> CUBE ---> CUCM ---> UCCX.

The issue that i am facing is the voice prompt greeting on the IVR was not registered by a professional service/person. Therefore, i am facing complain where users from the PSTN keeps complain about the quality(volume too low, static). Even internal users as well!

i am thinking to get all the greetings to be registered all together by a PRO but business has been sleeping on it for far  too long now.

So i was wondering whether or not i can play with the audio, at least the volume, through CUCM/Unity? I have used audacity in the last for audio manipulation but if the original file is already bad i don't think audacity can help.

Any helps/suggestion will be appreciated.

Thanks,

[R0g22]

If the static was introduced during recording, you cannot do much about it other than re-record but if it has to do something with the sampling rate then yes you can alter that. Try a 8000 Hz sampling and save the file as U-law. Also, it could be something as small as having the audio channel set to mono vs stereo or vice-versa.
Audacity is capable of fixing this. Adobe Audition is a good tool as well.

Regarding the audio, you can try and increase it within the tool. It might add more noise/static if done too aggressively.

[Jean Paul Enerst]

Hi Nipun Singh,
Thanks for the reply... However, the fact the audio is playing means the recording criteria are met. I just think mic was on low volume when the files were recorded.

[R0g22]

Mic on low volume won't cause static. Either the sampling is messed up or the recording equipment had some bad cable causing it. Also, if the sampling is messed up I don't believe the audio won't play. It would but it won't be pleasant to hear. So just because the file is playing does not necessarily mean that the file is good.