<div dir="ltr">Hi Abaci,<div><br></div><div>if the sample rate is correct and it is mono audio and there is not too much</div><div>noise in the signal avmd should work. You may want to retry this</div><div>after new changes have been merged into master branch today.</div><div>I have verified avmd detects 1000Hz beep in the audio attached previously.</div><div>You can send me the mobile number I can test in private email.</div><div><br></div><div>cheers,</div><div>Piotr </div></div><div class="gmail_extra"><br><div class="gmail_quote">On 21 March 2016 at 21:53, Abaci B <span dir="ltr"><<a href="mailto:abaci64@gmail.com" target="_blank">abaci64@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>I didn't try with stereo 44100Hz, I tried simple g711 calls to Verizon cell phones and it didn't trigger the beep, when calling a voicemail on another freeswitch box it did detect the beep.</div><br><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Mon, Mar 21, 2016 at 9:27 AM, Piotr Gregor <span dir="ltr"><<a href="mailto:piotrek.gregor@gmail.com" target="_blank">piotrek.gregor@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div><div class="h5"><div dir="ltr">Hi Abaci,<div><br></div><div>back to your problems with Verizon voicemail - the cause of them is:</div><div><br></div><div>1. Audio is stereo</div><div>2. Audio is sampled at 44100Hz</div><div>3. DESA algorithm used in avmd is very sensitive to noise</div><div><br></div><div>If you resample audio to 8000Hz and set avmd module to 8000Hz bit rate</div><div>or leave it at 44100Hz but adjust avmd to 44100Hz while always properly</div><div>handling number of channels (mono/stereo/...) then results are good.</div><div>Avmd module in current form is unable to meet these requirements,</div><div>but I am going to add the support for this.</div><div><br></div><div>cheers,</div><div>Piotr</div></div>
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