[DECtalk] the cause of electronic beeps in dectalk?

[Alex H.]

It depends on the vowels at the end of words, sorta. It also seems
random. As other have stated, it's a math miscalculation. The newer
versions 4.61 etc) don't do this to my knowledge.

Alex

On 5/23/15, Mohamed via Dectalk <dectalk at bluegrasspals.com> wrote:
> Although I wonder why it's not a fixed beep, the pitch changes and
> something I don't hear it at all.
>
> On 05/23/15 05:04 PM, Tom Kopec via Dectalk wrote:
>> DECtalk software or hardware?
>>
>> Ed is right, the fixed-point math can result in a +- 1 bit
>> oscillation.. though I admit I never noticed it when I was working
>> with DECtalk back in the 1990s (if I did, I would have fixed it!)
>>
>> Good to hear from you Ed as well.. hope things are going as well as
>> then can..
>>
>> ...tom
>>
>>
>>
>> On 5/23/2015 12:00 PM, dectalk-request at bluegrasspals.com wrote:
>>> Message: 1
>>> Date: Fri, 22 May 2015 17:46:13 -0400
>>> From: Mohamed <malhajamy at gmail.com>
>>> To: DECtalk <Dectalk at bluegrasspals.com>
>>> Subject: [DECtalk] the cause of electronic beeps in dectalk?
>>> Message-ID: <555FA3A5.7030200 at gmail.com>
>>> Content-Type: text/plain; charset=utf-8; format=flowed
>>>
>>> Hi guys, so, I'm wondering. What exactly causes the faint electronic
>>> beeps at the end of phrases in dectalk?
>>> Thanks.
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 2
>>> Date: Sat, 23 May 2015 06:22:54 -0400
>>> From: Edward Bruckert <edbruckert at gmail.com>
>>> To: DECtalk <dectalk at bluegrasspals.com>
>>> Subject: Re: [DECtalk] the cause of electronic beeps in dectalk?
>>> Message-ID: <18FCA6D6-CEDF-40F0-9C89-54D7935097CC at gmail.com>
>>> Content-Type: text/plain; charset=us-ascii
>>>
>>> what your hearing is valled a limit cycle. The filters can sometimes
>>> when feed with zeros oscillate in the low order
>>> bits in fixed point arithmetric. Ps I an now blind myself.
>>>
>>>
>>>
>>
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>
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