[Freeswitch-users] Using 16 KHz sounds

Anthony Minessale anthony.minessale at gmail.com
Wed Feb 23 19:55:47 MSK 2011


Depends, are you using a sipura? if so, try it, the setting is on the
web ui of the phone/device not in FS.


On Tue, Feb 22, 2011 at 12:25 PM, Malay Thakershi <mthakershi at gmail.com> wrote:
> I found I am already using 16 KHz profile. .SetTtsParameters("cepstral",
> "Allison-16kHz");
> I read this under FS wiki on Cepstral under 'Gotchas':
> -------------
> Using a 16khz voice and 0.03 for RTP Packet Size (Sipura Setting), it will
> sound horrible. Workaround: modify RTP Packet Size to 0.02 in Sipura config,
> under Advanced/SIP section.
> -------------
> Do you think that is my problem? Is this to be done in FS configuration?
> Malay
> On Mon, Feb 21, 2011 at 2:35 PM, Michael Collins <msc at freeswitch.org> wrote:
>>
>> It depends on why there is choppy audio. My guess is that going to 16k
>> won't help. You should update to latest git and re-test, preferably on a
>> system that is not in production. See if you can narrow down the conditions
>> under which the audio is not good. Does it happen when the system is under
>> load? Does it happen on every call, or only on certain calls? Things like
>> that.
>> -MC
>>
>> On Sun, Feb 20, 2011 at 12:51 PM, Malay Thakershi <mthakershi at gmail.com>
>> wrote:
>>>
>>> Hello,
>>> I use Cepstral in my mod_managed FS application. I mainly use
>>> Session.Speak and PlayAndGetDigits in my code to play WAV / audio text.
>>> When I started using FS and got a stable program running, I used Cepstral
>>> Allison 8 KHz voice. But frequently I get choppy type of sound. Earlier it
>>> was acceptable but now some callers seem to have difficulty understanding
>>> the call audio.
>>> Would it help if I get 16 KHz sounds / Cepstral license? What are changes
>>> I would need to make?
>>> Thank you for any help.
>>> Malay Thakershi
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>>
>>
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>
>
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>



-- 
Anthony Minessale II

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