21 Nov
2007
21 Nov
'07
9:47 p.m.
Folks,
I'm connecting an accoustic bass guitar that has an internal pickup
to a 1010LT card (inout 3 for instance) using a 1/4" cable and a 1/4"
to RCA converter. The guitar has volume, bass, treeble controls.
Unless I crank up the guitar's volume to the max there's no much sound
that goes in. The appropriate ADC channel setting in Envy24 is at the
max.
Pushing the volume to the max also brings noise with it. What I
would like to do is to set it at about 5-6 and have some room in Ardour.
Does this mean that I have to plug some kind of impedence adapter
between the guitar and the 1010LT ?
Thanks,
Al
21 Nov
21 Nov
9:54 p.m.
On Wed, 21 Nov 2007 20:44:48 -0500
lanas <lanas(a)securenet.net> wrote:
I'm connecting an accoustic bass guitar that has
an internal pickup
to a 1010LT card (inout 3 for instance) using a 1/4" cable and a 1/4"
to RCA converter.
You need some form of preamp between the guitar and the 1010. The guitar
does not provide a strong enough signal for the 1010 to handle properly.
An inexpensive mixer will do the trick.
--
======================================================================
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22 Nov
22 Nov
10:25 a.m.
Le Mercredi, 21 Nov 2007 20:54:21 -0500,
Joe Hartley <jh(a)brainiac.com> a écrit :
You need some form of preamp between the guitar and
the 1010. The
guitar does not provide a strong enough signal for the 1010 to handle
properly. An inexpensive mixer will do the trick.
That looks OK, but I'm hesitant at getting a mixer for this purpose.
Can you give a few product names so I can check them out and see
exactly what you mean by inexpensive mixer ? - Thanks.
Al
10:39 a.m.
Am Donnerstag, 22. November 2007 schrieb lanas:
Le Mercredi, 21 Nov 2007 20:54:21 -0500,
Joe Hartley <jh(a)brainiac.com> a écrit :
"Inexpensive mixer" will lead you to behringer. Stay away from their mixers
and preamps (they are noisy like hell and will be no quality-gain).
Mackie is good, presonus is good, alesis seems to have some more or less
cheap preamps that are of decent quality. I am very satisfied with the
preamps of my presonus firepod.
Have fun,
Arnold
--
visit http://www.arnoldarts.de/
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You need some form of preamp between the guitar
and the 1010. The
guitar does not provide a strong enough signal for the 1010 to handle
properly. An inexpensive mixer will do the trick.
That looks OK, but I'm
hesitant at getting a mixer for this purpose.
Can you give a few product names so I can check them out and see
exactly what you mean by inexpensive mixer ? - Thanks. 
23 Nov
23 Nov
5:18 a.m.
Arnold Krille wrote:
Am Donnerstag, 22. November 2007 schrieb lanas:
I'm no pro audio person, but I like my Nady Audio MM4. Was US$60 when I
bought it a couple of years ago. Worked fine with a friend's electric
guitar.
--
David
gnome(a)hawaii.rr.com
authenticity, honesty, community
Le Mercredi, 21 Nov 2007 20:54:21 -0500,
Joe Hartley <jh(a)brainiac.com> a écrit :
"Inexpensive mixer" will lead you to behringer. Stay away from their mixers
and preamps (they are noisy like hell and will be no quality-gain).
Mackie is good, presonus is good, alesis seems to have some more or less
cheap preamps that are of decent quality. I am very satisfied with the
preamps of my presonus firepod. You need some form of preamp between the guitar
and the 1010. The
guitar does not provide a strong enough signal for the 1010 to handle
properly. An inexpensive mixer will do the trick.
That looks OK, but I'm
hesitant at getting a mixer for this purpose.
Can you give a few product names so I can check them out and see
exactly what you mean by inexpensive mixer ? - Thanks. 
22 Nov
22 Nov
10:47 a.m.
lanas wrote:
Le Mercredi, 21 Nov 2007 20:54:21 -0500,
Joe Hartley <jh(a)brainiac.com> a écrit :
I've been using the
M-Audio AudioBuddy mic/gtr preamp with good results.
You can usually find them for cheap on eBay.
Btw, even if your guitar has built-in amplification its signal may still
require preamplification. I have an Ibanez AEF30, it definitely needed
the preamp.
Best,
dp
You need some form of preamp between the guitar
and the 1010. The
guitar does not provide a strong enough signal for the 1010 to handle
properly. An inexpensive mixer will do the trick.
That looks OK, but I'm hesitant at getting a mixer for this purpose.
Can you give a few product names so I can check them out and see
exactly what you mean by inexpensive mixer ? - Thanks. 
5:30 p.m.
Just because both guitar and your 1010 have quarter inch inputs
doesn't mean they are the same. A guitar pickup has a Hi-Z output, and
the 1010 is expecting a line-level input. They are not the same thing.
(having a battery doesn't mean a thing in regards to preamps, it means
it has an active rather than a passive pickup)
A mixer won't do much good either unless it comes with a Hi-Z input,
which is not common.
Most people set it up going from HI-Z into a DI box, and from there
into a preamp to get a line level signal. (There are some preamps with
Hi-Z inputs so that you can skip the DI box, but they are not very
common.)
-Reuben
On Nov 22, 2007 8:22 AM, lanas <lanas(a)securenet.net> wrote:
Le Mercredi, 21 Nov 2007 20:54:21 -0500,
Joe Hartley <jh(a)brainiac.com> a écrit :
You need some form of preamp between the guitar
and the 1010. The
guitar does not provide a strong enough signal for the 1010 to handle
properly. An inexpensive mixer will do the trick.
That looks OK, but I'm hesitant at getting a mixer for this purpose.
Can you give a few product names so I can check them out and see
exactly what you mean by inexpensive mixer ? - Thanks.
Al
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6:07 p.m.
Am Donnerstag, 22. November 2007 schrieb Reuben Martin:
Most people set it up going from HI-Z into a DI box,
and from there
into a preamp to get a line level signal. (There are some preamps with
Hi-Z inputs so that you can skip the DI box, but they are not very
common.)
Not very common? Actually (almost) all of the preamps mentioned in the thread
have a hi-z input.
Even all external audio-devices I know do have instrument inputs.
Have fun,
Arnold
--
visit http://www.arnoldarts.de/
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to all your contacts.
After a month or so log in as root and do a rm / -rf. Or ask your
administrator to do so...
7:04 a.m.
Am Donnerstag, 22. November 2007 schrieb lanas:
Folks,
I'm connecting an accoustic bass guitar that has an internal pickup
to a 1010LT card (inout 3 for instance) using a 1/4" cable and a 1/4"
to RCA converter. The guitar has volume, bass, treeble controls.
Unless I crank up the guitar's volume to the max there's no much sound
that goes in. The appropriate ADC channel setting in Envy24 is at the
max.
If it has controls for volume, treble and bass that means it has an
amplifier on board. Maybe the battery is low?
Pushing the volume to the max also brings noise with it. What I
would like to do is to set it at about 5-6 and have some room in Ardour.
Does this mean that I have to plug some kind of impedence adapter
between the guitar and the 1010LT ?
Thanks,
Al
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Edgar
7:12 a.m.
Hi,
If it has controls for volume, treble and bass that
means it has an
amplifier on board. Maybe the battery is low?
A battery is the proof that you actually have a build-in pre-amp. Therefore
you're right: The battery has to be low.
> Pushing the volume to the max also brings noise
with it.
What kind of noise ? Whitenoise like or a low-frequency noise?
> some kind of impedence adapter
If you have a low-freq noise it could be a ground loop or something.
In your case, a white noise would come from the fact that you increased
the guitarlevel extremly to hear a signal -> Signal to noise ratio != 0 so
you increase the noise level as well.
Best regards,
Sebastian.
10:22 a.m.
Le Jeudi, 22 Nov 2007 12:12:42 +0100,
Sebastian Tschöpel <tschoseb(a)tu-cottbus.de> a écrit :
For me white noise (as well as pink noise) are sounds found on an Arp
synth. I mean, there's more or less like tuning in-between radio
stations. That's not the case. It's a low buzzing sound that
increases with the volume. It's not there at 5 or 6 but is very
noticeable at 9-10. But it is not as strong as if a finger is put right
on the unplugged jack. Putting a plug-in amplifier in Ardour and
setting the voilume at 6 does not give good results. It's a shame,
because the actual sounds of the bass are interesting. If only the
noise could be removed.
Gruß,
Al
A battery is the proof that you actually have a
build-in pre-amp.
Therefore you're right: The battery has to be low.
But the control set has also a 'low battery' LED and it does not
light. Maybe not enough power to light the LED...
>> Pushing the volume to the max also brings
noise with it.
What kind of noise ? Whitenoise like or a
low-frequency noise?
Low frequency, like a buzzing sound.
> some kind
of impedence adapter
If you have a low-freq noise it could be a ground loop or something.
In your case, a white noise would come from the fact that you
increased the guitarlevel extremly to hear a signal -> Signal to
noise ratio != 0 so you increase the noise level as well.
10:50 a.m.
lanas wrote:
Le Jeudi, 22 Nov 2007 12:12:42 +0100,
Sebastian Tschöpel <tschoseb(a)tu-cottbus.de> a écrit :
Are you facing the monitor while recording ?
I have a cheap bass that acts much the same way. I've found that I have
to set its volume and tone controls just right to eliminate the buzzing.
My guess, the pots are poor quality and need replaced, and the internal
wiring is maybe not so good either. Perhaps you have an internal ground
problem ?
Best,
dp
What kind of noise ? Whitenoise like or a
low-frequency noise?
Low frequency, like a buzzing sound.
[snip] It's a low buzzing sound that
increases with the volume. It's not there at 5 or 6 but is very
noticeable at 9-10. But it is not as strong as if a finger is put right
on the unplugged jack. Putting a plug-in amplifier in Ardour and
setting the voilume at 6 does not give good results. It's a shame,
because the actual sounds of the bass are interesting. If only the
noise could be removed.
10:54 a.m.
For me white noise (as well as pink noise) are sounds
found on an Arp
synth.
Well, white noise does only mean that the signal power is equal at any
frequency and, yes, it sounds pretty similiar to the radio-in-between sound.
It's often used to measure the frequency behaviour of mic's for example.
http://upload.wikimedia.org/wikipedia/commons/6/66/Whitenoisesound.ogg
Pink noise is another special noise.
Punk noise, too.
noticeable at 9-10. But it is not as strong as if a
finger is put right
on the unplugged jack.
When the sound is similiar to the sound triggered by you touching the
unplugged
jack it is very possible that its a ground loop noise.
Do you use devices that are connected to different electric circuits but
the same
signalmixer?
Otherwise: Try to change the battery or the signal cable.
23 Nov
23 Nov
4:01 p.m.
Le Mercredi, 21 Nov 2007 20:44:48 -0500,
lanas <lanas(a)securenet.net> a écrit :
Does this mean that I have to plug some kind of
impedence adapter
between the guitar and the 1010LT ?
So I ended up getting a DI box and it works great. I like a lot to
play bass, so I did not get a cheap one. Would be too bad to have a
less than optimal sound for something that I like so much. So I got a
Radial Engineering JDI passive direct box. They are made in Canada and
seems to be quite good.
http://www.radialeng.com/di-jdi.htm
I use the XLR output to connect to an XLR input of the 1010LT sound
card.
One question: although the sound is very good regarding the level and
the noise to audio level, bith at recordign and playback, Ardour only
shows rather small 'waves' on the recording track. I'd have to do a
normalize to get a full scribble, which I don't. Since the audio level
seems to be adequate, what is Ardour using to draw these curves ? or
maybe I have to check it out against the waves made by the regular
output of Zynaddsubfx.
Cheers,
Al
6:20 p.m.
Le Vendredi, 23 Nov 2007 14:58:27 -0500,
lanas <lanas(a)securenet.net> a écrit :
One question: although the sound is very good
regarding the level and
the noise to audio level, bith at recordign and playback, Ardour only
shows rather small 'waves' on the recording track.
Yep. Question answered. Envy24 input setting.
Al
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14 comments
8 participants
participants (8)
-
Arnold Krille -
Dave Phillips -
david -
Edgar Aichinger -
Joe Hartley -
lanas -
Reuben Martin -
Sebastian Tschöpel