Archive for February, 2008

How to record acoustic piano

Wednesday, February 27th, 2008

To be honest, I don’t know much about recording acoustic pianos other than that it is black magic.

You need at least one microphone — two is better because that gives you stereo sound — and a recording device. Of course, you can use your computer to record on, but that does mean you need to put it somewhere near the piano (or buy very long cables).

You will get the best recordings with a set of good condenser microphones, but they are expensive and you need other equipment as well to connect this all to your computer.

Not just the quality of the microphones matters: the acoustic quality of the room is at least as important.

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How to record MIDI, part 4: Playing your MIDI recordings

Monday, February 25th, 2008

Red Dot Forever can only play what you just recorded, it cannot load existing MIDI files. To play MIDI files, use any of these programs:

If you like to fiddle with sheet music notation, you’ll find that most notation programs can also import MIDI files and convert them to sheet music. However, unless you played perfectly in time, you’ll need to perform some manual cleanup to make your score look good.

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How to record MIDI, part 3: Recording with Red Dot Forever

Sunday, February 24th, 2008

If everything is set up, you will need to get a program to record MIDI. There are many available, commercial and free, but I prefer to use Red Dot Forever.

This is my favorite program because:

  1. it is very simple to use
  2. it is free
  3. and I wrote it myself ;-)

Click here to download the latest version of Red Dot Forever (1.04)

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How to record MIDI, part 2: Connecting to the computer

Saturday, February 23rd, 2008

You can expect to find these connectors on your digital piano or electronic keyboard:

  • MIDI OUT. You will at least have a MIDI OUT port, for sending MIDI data to other devices.
  • MIDI IN. Usually you will also find a MIDI IN port, for receiving MIDI data from other devices.
  • MIDI THRU. Some instruments also have a MIDI THRU port, for passing MIDI data from one device to another. This port mainly exists to reduce the cable spaghetti that results from tying many different devices together.

To connect your instrument to your computer you either need:

  • A direct cable connection
  • A MIDI-to-USB interface
  • A MIDI input on your soundcard (game port connector)

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How to record MIDI, part 1: What is MIDI?

Friday, February 22nd, 2008

This is the first article in a series on recording MIDI from a digital piano or electronic keyboard.

MIDI stands for “Musical Instrument Digital Interface”. It is a standard communications protocol for electronic instruments.

The main difference between audio recording and MIDI recording is that MIDI does not store the sounds you make, only the names of the keys that you pressed. It is like sheet music or the old piano rolls — but in electronic form.

Most digital pianos and keyboards have MIDI capability: at the very least they can send MIDI messages to other equipment (”MIDI OUT”), but usually they also have the ability to receive MIDI messages (”MIDI IN”).

NOTE: You can also install MIDI into an acoustic piano, but we won’t consider that in this article. Google for “MIDI piano strip” if you are interested in this.

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How to share your recordings online

Wednesday, February 20th, 2008

There are many different ways in which you can make your recordings available for others to hear, but I will simply mention my favorite website:

Go to www.box.net and click Signup to create your account. The free (”Lite”) account will do fine: you get 1 gigabyte of storage space (which is plenty) and files are limited to 10 megabyte each (which is about 10 minutes of stereo music).

The advantage of box.net is that people don’t have to download your music first: they can simply listen online.

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How to record digital piano and keyboard, part 4: Saving your recording

Monday, February 18th, 2008

When you’re happy with your recording and post-processing, you can save it to disk with Audacity’s Export As function.

There are several options, but I’ll highlight two:

Export as WAV file. This is the best way to save your recording if you want to edit it later. WAV files are uncompressed audio and contain exactly what you recorded. They are also very big, about 10 megabytes for 1 minute of stereo sound. If you want to burn your recordings to a CD-R, WAV files are the way to go.

Export as MP3 file. This is the best way for saving recordings that are you want to share on the internet. MP3 files are compressed audio, which means they are a lot smaller than WAV files, but their quality is also slightly worse.

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How to record digital piano and keyboard, part 3: Post-processing

Sunday, February 17th, 2008

If you are happy with your recording, you can use Audacity to tweak it. It’s always a good idea to cut away unused silence (or wrong tones) at the beginning and end.

Two common post-processing steps are normalizing and noise reduction.

Normalizing

This is a trick that will make the sound of your recording as loud as possible, without distorting it.

If you record multiple pieces to put them on a CD, for example, then it’s important that each track is not significantly louder or softer than the others, otherwise the person listening will have to dial the volume knob up and down with every new track.

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How to record digital piano and keyboard, part 2: Recording with Audacity

Saturday, February 16th, 2008

Now that your digital piano or electronic keyboard is connected to the computer, we can record something.

Setting up the volumes

Go into the Volume Control Panel and enable recording for your chosen input (either Line In or Mic In).

Windows Volume Control Panel

If you are connecting Line Out to Line In, move the volume slider all the way up. Set the volume knob on your instrument about halfway.

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How to record digital piano and keyboard, part 1: Connecting to the computer

Friday, February 15th, 2008

This is the first article in a series on recording the sounds from your digital piano or electronic keyboard on the computer, and how to make MP3 files of your performances for sharing with friends or on the web.

Even though these articles mainly talk about recording on your computer, the same principles apply to other digital recording devices. So if you have an MP3 player with recording capability, or a MiniDisc, or any other device with an audio input, you can use that instead and then transfer the files to your computer.

NOTE: These articles are written with Windows in mind. If you use another operating system such as Mac OS X, the hardware directions are similar, but the software will be different.

These are general instructions that should work with any instrument. Because details tend to differ between brands and models, I’ll often tell you to refer to your instrument’s manual.

Always check with your manual first which options apply to your instrument. You can often download the latest version of these manuals in PDF format for free from the manufacturer’s website. The same goes for any additional software you may need, such as device drivers.

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