Please see Anthony's previous reply in this thread.

On Oct 20, 2015, at 8:18 AM, Ian de Sousa <iandesousa@gmail.com> wrote:

Hi All,

Just wondering if there has been a fix for this issue.

Im running 1.4.19 and occasionally we are getting calls playing very quickly when played back.. then the last bit of the recording / call it switches to normal speed at about 1/2 way.

testing so far (100 calls) seems to indicate unless we set an “answer” beforehand we get this issue 50% of the time.
setting answer isn’t good as caller will get incoming call charge due to specific NGN numbers coming in.


Ian DS
#######

Do you have mod_sndfile loaded?

Steve

On 4 Apr 2013, at 16:06, fs at tcowan.net wrote:

> On 04-02-2013 05:17, Steven Schoch wrote:
>> On Tue, Apr 2, 2013 at 10:28 AM, <fs at tcowan.net> wrote:
>> 
>>>  If I try to import the
>>> audio as raw format in audacity you can hear some high pitched 
>>> talking
>>> that plays back very quickly.
>> 
>> When you import as raw data, try changing the sample rate to 8000.
>> 
>> The reason Audacity can't open the file is because the header, which
>> specifies the encoding, channels, sample rate, etc. is damaged or
>> missing.
>>