Displaying 13 results from an estimated 13 matches for "10hz".
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100hz
2009 Sep 16
3
fft help
I wrote a script that I anticipating seeing a spike at 10Hz with the
function 10* sin(2*pi*10*t).
I can't figure out why my plots do not show spikes at the frequencies I
expect. Am I doing something wrong or is my expectations wrong?
require(stats)
layout(matrix(c(1,2,3), 3, 1, byrow = TRUE))
#SETUP
n <- 256 #nextn(1001) gives next power 2...
2018 Oct 25
2
Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
...fd): type opus
Encoded with libopus 1.3, libopusenc 0.2.1
User comments section follows...
ENCODER=opusenc from opus-tools 0.2-3-gf5f571b
ENCODER_OPTIONS=--bitrate 56 --vbr --comp 5
ALBUM=Test-Sweeps
ARTIST=Audacity
COMMENT=60s logarithmic sweep (0-20kHz): 5s=10Hz, 10s=20Hz, 15s=39Hz, 20
s=78Hz, 25s=156Hz, 30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz, 50s=5kHz, 55s=
10kHz, 60s=20kHz
COMMENTS=60s logarithmisch
DATE=2016
TITLE=Sweep (0-20kHz at 96kHz) log
TRACKNUMBER=2
Opus stream 1:
Pre-skip: 312
Playback gain:...
2018 Nov 01
0
Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
...and to Vorbis without problems.
Can you please post the original wav?
I am not sure what Audacity means by a logarithmisch sweep.
Is that a fixed number of Hertz per second (SoX calls that linear)?
Or a fixed number of semitones per second (SoX calls that exponantional)?
(The ogg comment says 5s=10Hz, 10s=20Hz, 15s=39Hz, 20s=78Hz, 25s=156Hz,
30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz, 50s=5kHz, 55s=10kHz, 60s=20kHz
so it seems the frequency rises logarithmically.)
$ sox -c 1 -r 96k -b 16 -n /tmp/sweep.wav synth 60 sin create 1-20 gain -3
> With Opus I noticed that the file size for 48kH...
2018 Nov 02
6
Antw: Re: Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
...and to Vorbis without problems.
Can you please post the original wav?
I am not sure what Audacity means by a logarithmisch sweep.
Is that a fixed number of Hertz per second (SoX calls that linear)?
Or a fixed number of semitones per second (SoX calls that exponantional)?
(The ogg comment says 5s=10Hz, 10s=20Hz, 15s=39Hz, 20s=78Hz, 25s=156Hz,
30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz, 50s=5kHz, 55s=10kHz, 60s=20kHz
so it seems the frequency rises logarithmically.)
$ sox -c 1 -r 96k -b 16 -n /tmp/sweep.wav synth 60 sin create 1-20 gain -3
> With Opus I noticed that the file size for 48kH...
2003 Nov 24
2
Ring power on Analog adapters
Hello,
I have a big old Fax machine that will only pick up a ring at 24volts and
20mA(minimum) ring[according to the technical specs manual]. None of my SIP
-> Analog phone adapters supply this:
Cisco - 50 volts
SIPURA - 70 volts
Handytone - who knows, but it doesn't work
can anyone tell me if there are any analog adapters or channel banks that
can send a 24V 20mA ring signal?
Also,
2005 Oct 19
2
Filter design in R?
Dr. Williams,
I ran across your inquiry on one of the R-help mailing lists regarding
digital filter design and implementation. I found no response to your
email in the archives and was wondering if you were able to find anything.
Thanks,
Israel
--
Israel Christie, Ph.D.
Email: ichristie at gmail.com
Phone: 865.766.0214
Mobile: 865.406.4615
2018 Nov 05
0
Antw: Re: Antw: Re: Possible bug in Opus 1.3
...ENCODER=opusenc from opus‑tools 0.2‑3‑gf5f571b
>> >> > ENCODER_OPTIONS=‑‑bitrate 56 ‑‑vbr ‑‑comp 5
>> >> > ALBUM=Test‑Sweeps
>> >> > ARTIST=Audacity
>> >> > COMMENT=60s logarithmic sweep (0‑20kHz): 5s=10Hz, 10s=20Hz,
>> > 15s=39Hz, 20
>> >> > s=78Hz, 25s=156Hz, 30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz,
> 50s=5kHz,
>> > 55s=
>> >> > 10kHz, 60s=20kHz
>> >> > COMMENTS=60s logarithmisch
>> >> > DATE=2...
2017 Apr 24
8
[PATCH net-next v3 0/5] virtio-net tx napi
.../linux/kernel/1505.3/00245.html
Before commit b0c39dbdc204 ("virtio_net: don't free buffers in xmit
ring") the virtio-net driver would free transmitted packets on
transmission of new packets in ndo_start_xmit and, to catch the edge
case when no new packet is sent, also in a timer at 10HZ.
A timer can cause long stalls. VIRTIO_F_NOTIFY_ON_EMPTY avoids stalls
due to low free descriptor count. It does not address a stalls due to
low socket SO_SNDBUF. Increasing timer frequency decreases that stall
time, but increases interrupt rate and, thus, cycle count.
Currently, with no timer, p...
2017 Apr 24
8
[PATCH net-next v3 0/5] virtio-net tx napi
.../linux/kernel/1505.3/00245.html
Before commit b0c39dbdc204 ("virtio_net: don't free buffers in xmit
ring") the virtio-net driver would free transmitted packets on
transmission of new packets in ndo_start_xmit and, to catch the edge
case when no new packet is sent, also in a timer at 10HZ.
A timer can cause long stalls. VIRTIO_F_NOTIFY_ON_EMPTY avoids stalls
due to low free descriptor count. It does not address a stalls due to
low socket SO_SNDBUF. Increasing timer frequency decreases that stall
time, but increases interrupt rate and, thus, cycle count.
Currently, with no timer, p...
2017 Apr 02
5
[PATCH net-next 0/3] virtio-net tx napi
...d 4KB TCP_RR + UDP test results
Before commit b0c39dbdc204 ("virtio_net: don't free buffers in xmit
ring") the virtio-net driver would free transmitted packets on
transmission of new packets in ndo_start_xmit and, to catch the edge
case when no new packet is sent, also in a timer at 10HZ.
A timer can cause long stalls. VIRTIO_F_NOTIFY_ON_EMPTY avoids stalls
due to low free descriptor count. It does not address a stalls due to
low socket SO_SNDBUF. Increasing timer frequency decreases that stall
time, but increases interrupt rate and, thus, cycle count.
Currently, with no timer, p...
2017 Apr 02
5
[PATCH net-next 0/3] virtio-net tx napi
...d 4KB TCP_RR + UDP test results
Before commit b0c39dbdc204 ("virtio_net: don't free buffers in xmit
ring") the virtio-net driver would free transmitted packets on
transmission of new packets in ndo_start_xmit and, to catch the edge
case when no new packet is sent, also in a timer at 10HZ.
A timer can cause long stalls. VIRTIO_F_NOTIFY_ON_EMPTY avoids stalls
due to low free descriptor count. It does not address a stalls due to
low socket SO_SNDBUF. Increasing timer frequency decreases that stall
time, but increases interrupt rate and, thus, cycle count.
Currently, with no timer, p...
2017 Apr 18
8
[PATCH net-next v2 0/5] virtio-net tx napi
.../linux/kernel/1505.3/00245.html
Before commit b0c39dbdc204 ("virtio_net: don't free buffers in xmit
ring") the virtio-net driver would free transmitted packets on
transmission of new packets in ndo_start_xmit and, to catch the edge
case when no new packet is sent, also in a timer at 10HZ.
A timer can cause long stalls. VIRTIO_F_NOTIFY_ON_EMPTY avoids stalls
due to low free descriptor count. It does not address a stalls due to
low socket SO_SNDBUF. Increasing timer frequency decreases that stall
time, but increases interrupt rate and, thus, cycle count.
Currently, with no timer, p...
2017 Apr 18
8
[PATCH net-next v2 0/5] virtio-net tx napi
.../linux/kernel/1505.3/00245.html
Before commit b0c39dbdc204 ("virtio_net: don't free buffers in xmit
ring") the virtio-net driver would free transmitted packets on
transmission of new packets in ndo_start_xmit and, to catch the edge
case when no new packet is sent, also in a timer at 10HZ.
A timer can cause long stalls. VIRTIO_F_NOTIFY_ON_EMPTY avoids stalls
due to low free descriptor count. It does not address a stalls due to
low socket SO_SNDBUF. Increasing timer frequency decreases that stall
time, but increases interrupt rate and, thus, cycle count.
Currently, with no timer, p...