Re: [asterisk-users] finding the right amd.conf settings
Thanks very much. By the way, what exactly does silence threshold mean, how does it work, and what does the threshold value represent (bitrate? integer?)? The amd.conf and voip-info wiki doesn't describe it. On Tue, Apr 28, 2009 at 5:58 PM, Matt Riddell li...@venturevoip.com wrote: On 28/04/2009 7:27 p.m., Roi Stork wrote: My current amd.conf settings still allow a lot of answering machines to be undetected. This is the setup: [AnsweringMachineDetector] initial_silence = 2500 greeting = 1500 after_greeting_silence = 500 total_analysis_time = 3000 min_word_length = 120 between_words_silence = 50 maximum_number_of_words = 3 silence_threshold = 512 Asterisk version used is 1.2.24. I reduced the max number of words to 2, and I have to find out if it improves detection. Can anyone recommend a better setting? Your threshold is quite high - just make sure that words are being detected as words. -- Kind Regards, Matt Riddell Director ___ http://www.venturevoip.com (Great new VoIP end to end solution) http://www.venturevoip.com/news.php (Daily Asterisk News - html) http://www.venturevoip.com/newrssfeed.php (Daily Asterisk News - rss) ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] finding the right amd.conf settings
On 29/04/2009 9:06 p.m., Roi Stork wrote: Thanks very much. By the way, what exactly does silence threshold mean, how does it work, and what does the threshold value represent (bitrate? integer?)? The amd.conf and voip-info wiki doesn't describe it. Basically when you speak, silence threshold is how loud silence is. On a mobile call there might be quite a bit of background noise, so the silence threshold needs to be a bit higher. If you have noise that is louder than the threshold then it will be considered as speaking. Conversely, if you have words that are quieter than the threshold then they will be considered as silence. I'm not sure what the units are, doesn't really make much difference. Basically you want it to be as low as possible, but not so low that it recognizes background noise as words. Just have a play round with it while watching the console - call cellphones, answer machines, IVRs etc and keep tuning it till you get the results you want. -- Kind Regards, Matt Riddell Director ___ http://www.venturevoip.com (Great new VoIP end to end solution) http://www.venturevoip.com/news.php (Daily Asterisk News - html) http://www.venturevoip.com/newrssfeed.php (Daily Asterisk News - rss) ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] finding the right amd.conf settings
My current amd.conf settings still allow a lot of answering machines to be undetected. This is the setup: [AnsweringMachineDetector] initial_silence = 2500 greeting = 1500 after_greeting_silence = 500 total_analysis_time = 3000 min_word_length = 120 between_words_silence = 50 maximum_number_of_words = 3 silence_threshold = 512 Asterisk version used is 1.2.24. I reduced the max number of words to 2, and I have to find out if it improves detection. Can anyone recommend a better setting? ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] finding the right amd.conf settings
On 28/04/2009 7:27 p.m., Roi Stork wrote: My current amd.conf settings still allow a lot of answering machines to be undetected. This is the setup: [AnsweringMachineDetector] initial_silence = 2500 greeting = 1500 after_greeting_silence = 500 total_analysis_time = 3000 min_word_length = 120 between_words_silence = 50 maximum_number_of_words = 3 silence_threshold = 512 Asterisk version used is 1.2.24. I reduced the max number of words to 2, and I have to find out if it improves detection. Can anyone recommend a better setting? Your threshold is quite high - just make sure that words are being detected as words. -- Kind Regards, Matt Riddell Director ___ http://www.venturevoip.com (Great new VoIP end to end solution) http://www.venturevoip.com/news.php (Daily Asterisk News - html) http://www.venturevoip.com/newrssfeed.php (Daily Asterisk News - rss) ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
