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USB Audio interface for digital piano recording
#2391923 02/28/15 08:08 AM
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Hi all,

I have a roland rp401r and i want to record my performances in good quality but i dont want to spend much money for a recording device.
I dont want to use VSTi softwares just capture the original sound.
Can you suggest something good below 150$?
And there is an interface called: Roland UA-11mk2 Duo Capture Would i be able to capture my sound in a good quality with this?

Re: USB Audio interface for digital piano recording
WeeFeeri #2391931 02/28/15 08:38 AM
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The Duo Capture Mk2 is Mac, PC, and iOS compatible (with camera connection kit). It has stereo mini jack in, and your Roland digital piano has stereo mini jack output. Looks like a decent choice, all you need is a single stereo mini to stereo mini cable long enough to reach your computer. The shorter the better with this type of cable.

Side note: you have a MIDI recorder on the RP401r which can be useful. It's really easy to use, and you can capture your performance that way, and then not have to play performer and recording engineer at the same time. Once you have a performance you're happy with in the on board MIDI recorder you can then focus on setting levels and transferring your performance to the computer.

Re: USB Audio interface for digital piano recording
ElmerJFudd #2391936 02/28/15 08:52 AM
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Thanks for the reply. Im planning to buy the duo capture and an hq 3.5 jack cable as well. Now i record using my motherboards line in. its not ba quality but not loud enough. with the duo capture i will be able to record in greater quality, will i? -sry if its a dumb question :)-
Yes i always use the midi recorder smile

Re: USB Audio interface for digital piano recording
WeeFeeri #2391942 02/28/15 09:11 AM
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It is probable but not guaranteed to be a step up in audio quality from your motherboard's built in audio. But easy enough, if you don't think it's enough of an improvement, return it.

Generally speaking, there are ways to improve the overall volume of your recorded track post recording, as long as the level was decent and there isn't too much unwanted noise introduced. What software are you using to capture the audio?

Re: USB Audio interface for digital piano recording
ElmerJFudd #2391943 02/28/15 09:17 AM
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i use audacity. Set the line input to a low lvl and max volume on the piano. after the recording i normalize the sound.

Re: USB Audio interface for digital piano recording
WeeFeeri #2391958 02/28/15 09:52 AM
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I would balance out the two levels... the audio output from the piano and the line level input on the computer. You are looking for a nice solid level - I don't use Audacity often so I don't know how the meters are numbered, but you want a level that is consistently about half way to two thirds the way up but never reaches peak. In other words, maximum level before you begin to hear noise introduced and with no clipping.

Normalization is a fairly poor way to get more volume out of a recording because A) it's destructive, meaning that once you apply it you can't remove it, and B) it raises up the volume of everything, the piano sounds as well as any noise in your recording.


Re: USB Audio interface for digital piano recording
ElmerJFudd #2391960 02/28/15 09:55 AM
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Alright im going to try to ballance the settings.

Re: USB Audio interface for digital piano recording
WeeFeeri #2391962 02/28/15 10:05 AM
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Cool, if you can, share a file right after you've recorded it so we can take a look at the levels and what the audio quality is. A DropBox link, or HighTail are pretty effective for sharing uncompressed files.

Re: USB Audio interface for digital piano recording
ElmerJFudd #2391970 02/28/15 10:42 AM
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you can check out my youtube channel, there are some videos i recorded.
My channel

Re: USB Audio interface for digital piano recording
WeeFeeri #2391985 02/28/15 11:46 AM
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Hey, Reiner. Your audio quality is not poor at all. The volume is quite good and normalization has not raised up any additional noise, at least none worth complaining about. I don't think the Roland conversion box is going to give you anything much better than this. You would need to spend a lot of money on something like an RME or Lynx card to get something noticeably better, and only by people who obsess over these things.

A simple improvement would be spending some time on equalization.

If you're looking for a big jump up, you really should consider one of those big sample library pianos.

Last edited by ElmerJFudd; 02/28/15 11:47 AM.
Re: USB Audio interface for digital piano recording
ElmerJFudd #2391992 02/28/15 12:06 PM
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okay, thanks for the advices and replies.

Re: USB Audio interface for digital piano recording
WeeFeeri #2392542 03/01/15 04:43 PM
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I've been recording from a Roland RP401R recently (and just posted a link up to dewster's DPBSD midi files recording in the sticky thread on this forum).

Here are my top tips:
1/ Set the RP401R volume to maximum because (for no reason that I can work out) the piano volume control affects the volume from the line out. That lifts the level of the signal as high as possible above any noise in the rest of your recording chain. You'll probably need to use headphones if you're doing this, as the sound from the speakers will be too loud. If your headphones are too loud at this level then get an in-line volume control.
2/ If you are using it, unplug the USB connection between the RP401R and the recorder during your recording, otherwise you could create a ground loop and get audible digital chatter in your recordings.
3/ In your recording software, adjust the record volume to keep the loudest parts of the recording between -10dB and -6dB on the scale. (It's not critical because you'll increase the level in software after the recording).

Then if you want to be fancy...
3b/ Record at 24-bit depth (if your sound card support it), and then you'll avoid *any* noticeable quality loss when you normalise the volume of your recording.

4/ After you've recorded, use you recording software to increase the volume so that the peak level is -2dB. (Aiming for -2dB allows for overshoots that might be introduced if youtube or some other service change the sample rate of your recording later).


Regards,
Steven
---
(Re)beginner
Roland RP401R

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