[arm-allstar] Voice speed

[Patrick Perdue]

cats, ACC, etc. actually aren't entirely synthesized speech. Those are 
real human speech samples converted to LPC10 as per the TMS-52xx Texas 
Instruments chips. There is an old Windows tool one could use to convert 
PCM to that format, called QBox.

SoX has an LPC vocoder, but it's not at all the same implementation.


On 11/1/2020 11:35 AM, "Julio Cantres via ARM-allstar" wrote:
> Good afternoon
> is there any way to create synthesized voices like cat repeater controllers
> or linkcomms?
>
> 73's KP3AV
>
> El dom., 1 de noviembre de 2020 6:14 a. m., "Patrick Perdue via
> ARM-allstar" <arm-allstar at hamvoip.org> escribió:
>
>> And also, keep in mind that, in the case of .gsm files, you're dealing
>> with already compressed audio. Processing and compressing again will
>> give you twice the artifacts. For that reason, I suggest staying with
>> linear PCM or ULAW. HamVoIP ships with GSM files, I suppose to save
>> space. Lots of HamVoIP's scripts are hard-coded to look for specific GSM
>> files. I changed out my entire sound pack and recursively found and
>> replaced .gsm with .ulaw in several key places.
>>
>>
>> On 10/31/2020 11:19 PM, "Danny K5CG via ARM-allstar" wrote:
>>> To increase the speed of a file use sox...
>>>
>>> sox input.wav output.wav speed 1.33
>>>
>>> To increase speed and maintain pitch as well...
>>>
>>> sox input.wav output.wav tempo 1.33
>>>
>>> Keep in mind you would have to convert every voice file.
>>>
>>>
>>>
>>> ----- Original Message -----
>>>> From: "Buddy Brannan via ARM-allstar" <arm-allstar at hamvoip.org>
>>>> To: "ARM Allstar" <arm-allstar at hamvoip.org>
>>>> Cc: "Buddy Brannan" <buddy at brannan.name>
>>>> Sent: Saturday, October 31, 2020 3:16:59 PM
>>>> Subject: Re: [arm-allstar] Voice speed
>>>> Since the voice is recordings of human speech, no, not really. I mean
>> OK, you
>>>> might be able to trim silence off the beginning and end of each clip,
>> but
>>>> you’re likely to more get what you want by recording a whole new set.
>>>>
>>>>
>>>> Buddy Brannan, KB5ELV - Erie, PA
>>>> Email: buddy at brannan.name
>>>> Mobile: (814) 431-0962
>>>>
>>>>
>>>>
>>>>> On Oct 31, 2020, at 12:05 PM, Michael Champion via ARM-allstar
>>>>> <arm-allstar at hamvoip.org> wrote:
>>>>>
>>>>> Is there a way to speed up the voice?
>>>>>
>>>>> Or reduce the delay between words/letters/numbers?
>>>>>
>>>>> -Michael
>>>>> N7UIC
>>>>>
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