182 lines
8.2 KiB
Markdown
182 lines
8.2 KiB
Markdown
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+++
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title = "Recording audio"
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chapter = false
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weight = 5
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#pre = "<b>1. </b>"
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+++
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Besides Importing Audio, another way to create Regions in your Ardour
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session is to *record* new audio.
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The source of this audio could be the line or microphone inputs of your audio
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interface, or it could even be sound originating from other applications on your
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computer which have been connected to Ardour via JACK. Please see the section on
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**Routing** for more details.
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This section will show you how to record audio from an external source
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(for example, a microphone) onto a track in Ardour.
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![Editor Mixer Input](en/Ardour4_Editor_Mixer_Input.png)
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First, you should check that the proper inputs have been routed to the
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track you wish to record to.
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1. Select the track by clicking on the empty space just below its name and volume slider.
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2. The Track becomes highlighted.
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3. The vertical strip **Editor Mixer** located on the left side of the Editor window should now show the Track you just selected
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(*Audio 1* in the image above).
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4. Just below the Track name in the Editor Mixer you will find a button that allows you to
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edit the Routing.
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5. Click on that button to investigate the Routing.
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{{% notice note %}}
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If you don't see the Editor Mixer strip, use the **Shift + E** shortcut to make it appear.
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{{% /notice %}}
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In the next image you can see that the only input of this Mono Track is
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receiving signal from *system capture_1*. This normally means the first
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microphone input of your soundcard. The actual names of the connections on your personal computer may be different depending on a number of factors, including whether you are using a Mac, Windows, or Linux computer. If you don't see a connection named *system capture_1*, look for whichever connection name is likely to be your input microphone.
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![Audio 1 input](en/Ardour4_Audio_1_input.png)
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The tabs that you see displayed vertically on the left are available
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sources. "*Audio 1 in*" on the bottom right is the
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destination. The green dot represents a connection.
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The **Ardour** tabs show the connections that can be made from other
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sources within Ardour. The **Other** tab displays audio connections
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available from software other than Ardour. The **Hardware** tab shows
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hardware connections (for example, the built-in microphone of your
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computer or the inputs from your sound card). This will be explained in more detail in the
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**Understanding Routing** chapter.
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For the purpose of this chapter, simply make sure that system capture_1
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(or equivalent in your computer) from Hardware tab is connected to the track you want to use so that we can do
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a test recording. If you don't see a green dot as in the screenshot
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above, click on the matrix to make the connection manually. You can now
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close this window.
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{{% notice note %}}
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The example above assumes you are recording a Mono sound source
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onto a Mono Track. If you want to record in Stereo, the instructions are
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pretty much the same, but you should create a Stereo Track. You should
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then see two green dots, one for capture_1 and another for capture_2.
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{{% /notice %}}
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### Arming the Track
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*Please be sure to first turn down the volume of your loudspeakers before the next step.*
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"Arming the Track" is simply to get it ready for recording. Once you
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have checked that the proper capture inputs have been routed to the
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Track, you can arm the Track to record by clicking on the small red icon
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on the horizontal track strip (not the big one in the Transport
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controls).
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![Arming Track](en/Ardour4_Arming_The_Track.png)
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When properly armed, the small red icon will remain
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highlighted, and you will be able to see the incoming signal by looking
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at the **Peak** **Meter** on the Editor Mixer or on the horizontal Track
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strip.
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If you are using headphones, you should be able to hear ("monitor") the sounds being recorded. If you are using loudspeakers, be sure to turn their volume down to avoid feedback.
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{{% notice note %}}
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Unless you have told Ardour to do otherwise, the input being
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recorded will be monitored (in other words, heard) via
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the **Audition** output. If you are not using headphones to monitor the
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recording process, you may get some loud feedback at this point!
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{{% /notice %}}
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### Arm Ardour and Start Recording
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Now that you have armed the Track to record, you must arm Ardour itself
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to record by clicking on the big red button in the **Transport menu**.
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The button will blink in red, indicating that Ardour is ready to record.
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To start recording, click on the Play button in the Transport menu, or
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press the space bar of your computer keyboard. Clicking the Play button
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again (or pressing the space bar) will stop recording.
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![Recording](en/Ardour4_Recording.png)
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While recording, the armed Track will capture the sounds from the input.
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Any existing sound on other tracks will play normally during the
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recording. This allows you to play, sing or speak along with other
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Regions and Tracks you have already recorded or embedded in your
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Session.
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While recording, you will be able to see the **Levels** (the amplitude
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in Decibels) of the incoming sound, as well as see the **Peaks** of the
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**Waveform** appearing as it is recorded.
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### Avoid Clipping
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The audio in the screenshot below was recorded too loud and produced
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**Clipping** (in other words, the signal recorded was outside the bounds
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of what could be represented digitally), which results in a loss of
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information and audible distortion. The clipped peaks in the waveform
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are marked in red.
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![Clipping](en/Ardour4_Clipping.png)
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The best and easiest way to avoid Clipping is have some control over the
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volume of the incoming audio signal before it gets to the sound card.
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For example, you can can move the microphone further away from the sound
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being recorded or use a mixer to reduce the volume of the incoming
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signal.
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When the audio signal has been recorded within proper limits, you should
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see no red Peaks, and the level meter should show a negative number as
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maximum peak (for example, a maximum peak of around −3.0 Decibels allows
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for a comfortable distance from the Clipping Point.)
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The range of decibels between the region's maximum Peak and the Clipping
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Point is commonly referred to as **Headroom**. It is common recording
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practice to keep approximately three to six Decibels of Headroom between
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the maximum of your signal and the Clipping Point, with the Clipping
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Point itself being represented as 0dB (zero Decibels). In other words,
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an audio region with a comfortable amount of Headroom would have its
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maximum Peaks between −6dB and −3dB.
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### Region List
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Recorded audio appears as a new Region in the recording Track. Like all
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Regions, this newly recorded one will be available in the Region List,
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from where you can drag-and-drop it into other Tracks if needed.
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The Region you just recorded will automatically receive the name of the
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Track where it was recorded, with different takes being automatically
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numbered. In the screenshot below, "*Audio 1-1*" and "*Audio 1-2*"
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represent two different recordings made on a track named "*Audio 1*".
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![Region List Rec](en/Ardour4_RegionList_Recording.png)
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You might want to plan ahead and organize your recording Session by
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giving appropriate names to different tracks. For example, a Track used
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only for recording vocals can be named "Voice". This way, recorded sound
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files will be named accordingly, and different takes will appear in the
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Regions List identified as "Voice-1", "Voice-2", etc, rather than the
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default generic names, such as "Audio 1".
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To rename a Track, just double-click on its name (before you arm the track to
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record) and type in the new name.
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![Rename Track](en/Ardour4_Rename_Track.png)
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{{% notice tip %}}
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Did we mention how important it is to **save your work often?** Hit **Ctrl + S** right now. Get in the habit of hitting it every few minutes.
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{{% /notice %}}
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Continuing
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----------
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At this point, you may want to skip directly ahead to the [**Arranging Tracks**](../arranging-tracks) section
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to learn how to arrange the Regions
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into a composition. If you plan on doing more complicated Recording than
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what we have discussed here, in particular with a multichannel
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soundcard, or from other JACK-enabled audio programs on your computer,
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you should also have a look at the [**Understanding Routing**](../understanding-routing) chapter.
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Next: [ARRANGING TRACKS](../arranging-tracks) or [UNDERSTANDING ROUTING](../understanding-routing)
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