Lukasz Sokol wrote:
On 24/07/15 12:12, Mark Morgan Lloyd wrote:
It turns out that there's a more-or-less off-the-shelf solution in
SpanDSP http://www.soft-switch.org/ which is one of the libraries
that underlies IAXmodem. It provides a function to process a block of
samples, hence a callback to
On 24/07/15 12:12, Mark Morgan Lloyd wrote:
>
>
> It turns out that there's a more-or-less off-the-shelf solution in
> SpanDSP http://www.soft-switch.org/ which is one of the libraries
> that underlies IAXmodem. It provides a function to process a block of
> samples, hence a callback to simulate t
Lukasz Sokol wrote:
On 20/07/15 17:32, Mark Morgan Lloyd wrote:
Lukasz Sokol wrote:
It's been years since I had anything to do with DSP, unfortunately,
but with the FFT running on the sliding 26-sample-long window, and
a /reverse/ FFT to produce the 26-long sample from just having a
byte or 2 w
On 20/07/15 17:32, Mark Morgan Lloyd wrote:
> Lukasz Sokol wrote:
>>
>> It's been years since I had anything to do with DSP, unfortunately,
>> but with the FFT running on the sliding 26-sample-long window, and
>> a /reverse/ FFT to produce the 26-long sample from just having a
>> byte or 2 written
Lukasz Sokol wrote:
On 20/07/15 10:49, Mark Morgan Lloyd wrote:
Lukasz Sokol wrote:
Hi Mark,
On 18/07/15 17:43, Mark Morgan Lloyd wrote:
Has anybody used FPC to decode (and generate) FSK modem tones on
a VOIP connection? Strictly V.21, don't need the complexity of
QAM etc.
i haven't ;) but
On 20/07/15 10:49, Mark Morgan Lloyd wrote:
> Lukasz Sokol wrote:
>> Hi Mark,
>>
>> On 18/07/15 17:43, Mark Morgan Lloyd wrote:
>>> Has anybody used FPC to decode (and generate) FSK modem tones on
>>> a VOIP connection? Strictly V.21, don't need the complexity of
>>> QAM etc.
>>>
>>
>> i haven't
Lukasz Sokol wrote:
Hi Mark,
On 18/07/15 17:43, Mark Morgan Lloyd wrote:
Has anybody used FPC to decode (and generate) FSK modem tones on a
VOIP connection? Strictly V.21, don't need the complexity of QAM
etc.
i haven't ;) but it's interesting: are you just assembling/decoding
the ulaw/alaw
Hi Mark,
On 18/07/15 17:43, Mark Morgan Lloyd wrote:
> Has anybody used FPC to decode (and generate) FSK modem tones on a
> VOIP connection? Strictly V.21, don't need the complexity of QAM
> etc.
>
i haven't ;) but it's interesting: are you just assembling/decoding
the ulaw/alaw/choose$codec da
Has anybody used FPC to decode (and generate) FSK modem tones on a VOIP
connection? Strictly V.21, don't need the complexity of QAM etc.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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