Troubleshooting Audio Problems - Revision history

Edwards: /* Volume Calibration */ add note about iPad/iPhone volume buttons

2025-04-04T16:41:34Z

Volume Calibration: add note about iPad/iPhone volume buttons

← Older revision		Revision as of 02:41, 5 April 2025
Line 75:		Line 75:
	== Volume Calibration ==		== Volume Calibration ==
	When using an audio interface, you may find that the input or output volume is not what you expect. This generally is an indication that the audio interface input and/or output gain needs adjusting. In Loopy Pro, 0 dB is 0 [[wikipedia:DBFS\|dBFS]] which is the loudest possible amplitude. Going over 0 dB on Loopy's meters results in distortion without increasing the signal amplitude (since the signal is literally at the highest possible value).		When using an audio interface, you may find that the input or output volume is not what you expect. This generally is an indication that the audio interface input and/or output gain needs adjusting. In Loopy Pro, 0 dB is 0 [[wikipedia:DBFS\|dBFS]] which is the loudest possible amplitude. Going over 0 dB on Loopy's meters results in distortion without increasing the signal amplitude (since the signal is literally at the highest possible value).

			'''iPad/iPhone Volume Buttons''': Normally, when an audio interface is connected, the iPad and iPhone hardware volume buttons are not functional and output volume is controlled by controls on the audio interface. However, some audio interfaces leave the iPad/iPhone volume buttons functional. When your interface is connected and audio is being sent to it, try to use the iPad/iPhone volume buttons to set the volume to the maximum.

	'''NOTE:''' To accurately compare the loudness of Loopy Pro's output to other source material, load the reference material into a new Loopy Pro project with default settings and no plugins. Often, people compare their unmastered audio to professionally mastered tracks, which typically use limiters and compressors to reduce dynamic range and enhance perceived loudness. If your sessions don’t incorporate such plugins, your audio may not achieve the same apparent loudness as the reference material.		'''NOTE:''' To accurately compare the loudness of Loopy Pro's output to other source material, load the reference material into a new Loopy Pro project with default settings and no plugins. Often, people compare their unmastered audio to professionally mastered tracks, which typically use limiters and compressors to reduce dynamic range and enhance perceived loudness. If your sessions don’t incorporate such plugins, your audio may not achieve the same apparent loudness as the reference material.
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	The volume calibration project below can be used to calibrate your system		The volume calibration project below can be used to calibrate your system

	'''Volume calibration project'''. This [[~~MEDIA~~:~~Test_tool_levels_folder~~.zip\|Test Tool project]] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.		'''Volume calibration project'''. This [[Media:Test tool levels folder.zip\|Test Tool project]] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.

	'''Headroom'''. If your use-case involves live instrument input, you may want to turn down the master fader in the Test Tool project to your target output level since you may need to give yourself some headroom. For instance, you may want to turn the master fader down so that the output is at -10db if that is your desired headroom -- and adjust your interface or mixer output accordingly.		'''Headroom'''. If your use-case involves live instrument input, you may want to turn down the master fader in the Test Tool project to your target output level since you may need to give yourself some headroom. For instance, you may want to turn the master fader down so that the output is at -10db if that is your desired headroom -- and adjust your interface or mixer output accordingly.

Edwards: /* Output Level */ convert link to MEDIA

2025-01-05T18:19:31Z

Output Level: convert link to MEDIA

← Older revision		Revision as of 04:19, 6 January 2025
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	The volume calibration project below can be used to calibrate your system		The volume calibration project below can be used to calibrate your system

	'''Volume calibration project'''. This [~~https~~:~~//wiki.loopypro.com/images/0/01/~~Test_tool_levels_folder.zip Test Tool project] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.		'''Volume calibration project'''. This [[MEDIA:Test_tool_levels_folder.zip\|Test Tool project]] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.

	'''Headroom'''. If your use-case involves live instrument input, you may want to turn down the master fader in the Test Tool project to your target output level since you may need to give yourself some headroom. For instance, you may want to turn the master fader down so that the output is at -10db if that is your desired headroom -- and adjust your interface or mixer output accordingly.		'''Headroom'''. If your use-case involves live instrument input, you may want to turn down the master fader in the Test Tool project to your target output level since you may need to give yourself some headroom. For instance, you may want to turn the master fader down so that the output is at -10db if that is your desired headroom -- and adjust your interface or mixer output accordingly.

Edwards: add link to local test project formatting fix

2025-01-04T22:25:57Z

add link to local test project formatting fix

@@ Line 11: / Line 11: @@
 '''Bluetooth Note''': if your interface is something like a SparkGo that can connect via USB or Bluetooth, use USB. Bluetooth audio (not MIDI) connections generally have too much latency for realtime music performance. Besides the latency, such devices may perform unpredictably with Loopy Pro when running in Bluetooth mode.
+== First Troubleshooting ==
 == Preparation ==
@@ Line 31: / Line 30: @@
 Use the system's Control Center to see what output devices the OS sees. The details may vary slightly on some versions of the OS. If these don't work, find out how to display Control Center on your device by searching on the web.
 * Swipe down from the upper-right corner to display the Control Center.
-* On most devices, the upper-right tile will be for sound output. Tap it.  [[File:loopy_pro_trouble_controlcenter_img_5951.jpeg|600px]]
+* On most devices, the upper-right tile will be for sound output. Tap it.<br>[[File:loopy_pro_trouble_controlcenter_img_5951.jpeg|600px]]
-* Tap on the Speaker icon (circled in the picture below) to see a list of the possible output devices. Take a screenshot if you will need further troubleshooting help. [[File:loopy_pro_trouble_cc2_img_5949.jpeg|600px]]
+* Tap on the Speaker icon (circled in the picture below) to see a list of the possible output devices. Take a screenshot if you will need further troubleshooting help.<br>[[File:loopy_pro_trouble_cc2_img_5949.jpeg|600px]]
-* You should see something like the picture below that shows the names of the possible audio outputs. [[File:loopy_pro_troubleshooting_3_img_5948.png|600px]]
+* You should see something like the picture below that shows the names of the possible audio outputs.<br>[[File:loopy_pro_troubleshooting_3_img_5948.png|600px]]
 If your device does not appear in the list, see the Common Issues section below.
@@ Line 64: / Line 63: @@
 * Is Loopy Pro able to record from your device?
-= Common Issues =
+== Common Issues ==
 The most common issues are:
@@ Line 74: / Line 73: @@
 * More than one audio output or input device is connected. Some MIDI peripherals with USB connections look to the OS like an audio interface. Make sure that your audio interface gets plugged in after your MIDI peripheral. You will not be able to use the audio capabilities of both your interface and another peripheral that looks to the OS like an interface at the same time and there is no easy way to switch between them other than plugging/unplugging.
-'''Volume calibration project'''. This {{ :test_tool_levels_folder.zip   Test Tool}} can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.
+== Volume Calibration ==

Edwards: Reverted edits by Edwards (talk) to last revision by Michael

2025-01-04T22:15:51Z

Reverted edits by Edwards (talk) to last revision by Michael

@@ Line 11: / Line 11: @@
 '''Bluetooth Note''': if your interface is something like a SparkGo that can connect via USB or Bluetooth, use USB. Bluetooth audio (not MIDI) connections generally have too much latency for realtime music performance. Besides the latency, such devices may perform unpredictably with Loopy Pro when running in Bluetooth mode.
-== First Troubleshooting ==
 == Preparation ==
@@ Line 63: / Line 64: @@
 * Is Loopy Pro able to record from your device?
-== Common Issues ==
+= Common Issues =
 The most common issues are:
@@ Line 73: / Line 74: @@
 * More than one audio output or input device is connected. Some MIDI peripherals with USB connections look to the OS like an audio interface. Make sure that your audio interface gets plugged in after your MIDI peripheral. You will not be able to use the audio capabilities of both your interface and another peripheral that looks to the OS like an interface at the same time and there is no easy way to switch between them other than plugging/unplugging.
-== Volume Calibration ==
+'''Volume calibration project'''. This {{ :test_tool_levels_folder.zip   Test Tool}} can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.

Edwards: /* Output Level */ link to local copy of project

2025-01-04T22:14:24Z

Output Level: link to local copy of project

← Older revision		Revision as of 08:14, 5 January 2025
Line 92:		Line 92:

	The volume calibration project below can be used to calibrate your system		The volume calibration project below can be used to calibrate your system
			[[File:Test tool levels folder.zip\|alt=Level Test Project link\|none\|thumb\|Level Test Project]]
	'''Volume calibration project'''. This [~~https~~:~~//wiki.audiob.us/lib/exe/fetch.php?media=loopy_pro~~:~~test_tool_levels_folder~~.zip Test Tool ~~project~~] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.		'''Volume calibration project'''. This [[:File:Test tool levels folder.zip\|Test Tool Project]] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.

	'''Headroom'''. If your use-case involves live instrument input, you may want to turn down the master fader in the Test Tool project to your target output level since you may need to give yourself some headroom. For instance, you may want to turn the master fader down so that the output is at -10db if that is your desired headroom -- and adjust your interface or mixer output accordingly.		'''Headroom'''. If your use-case involves live instrument input, you may want to turn down the master fader in the Test Tool project to your target output level since you may need to give yourself some headroom. For instance, you may want to turn the master fader down so that the output is at -10db if that is your desired headroom -- and adjust your interface or mixer output accordingly.

Edwards: /* Volume Calibration */ major expansion

2024-12-09T21:10:49Z

Volume Calibration: major expansion

@@ Line 74: / Line 74: @@
 == Volume Calibration ==
-When using an audio interface, you may find that the input or output volume is not what you expect. This generally is an indication that the audio interface input and our output gain needs adjusting.
+When using an audio interface, you may find that the input or output volume is not what you expect. This generally is an indication that the audio interface input and/or output gain needs adjusting. In Loopy Pro, 0 dB is 0 [[wikipedia:DBFS|dBFS]] which is the loudest possible amplitude. Going over 0 dB on Loopy's meters results in distortion without increasing the signal amplitude (since the signal is literally at the highest possible value).
-==== Output Level ====
+'''NOTE:''' To accurately compare the loudness of Loopy Pro's output to other source material, load the reference material into a new Loopy Pro project with default settings and no plugins. Often, people compare their unmastered audio to professionally mastered tracks, which typically use limiters and compressors to reduce dynamic range and enhance perceived loudness. If your sessions don’t incorporate such plugins, your audio may not achieve the same apparent loudness as the reference material.
-db output from Loopy Pro is the maximum level that an iOS device can output without distorting. If the Loopy Pro mixer volume is at 0 dB, and you feel that the volume needs to be louder, you need to increase the volume from your interface or mixer to your speakers. The volume calibration project below can be used to calibrate your system
 '''Volume calibration project'''. This [https://wiki.audiob.us/lib/exe/fetch.php?media=loopy_pro:test_tool_levels_folder.zip Test Tool project] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.
-==== Input Level ====
+'''Headroom'''. If your use-case involves live instrument input, you may want to turn down the master fader in the Test Tool project to your target output level since you may need to give yourself some headroom. For instance, you may want to turn the master fader down so that the output is at -10db if that is your desired headroom -- and adjust your interface or mixer output accordingly.
 When recording from external inputs, you generally want to avoid the meter going into the red (over 0 dB), and you don't want the input too quiet. Generally, start with Loopy Pro's mixer at the default 0dB fader setting. At this setting, the incoming volume is unchanged by Loopy Pro. When possible, use your audio interface/mixer to adjust the level to be close to what you want and use the Loopy Pro mixer fader to make slight adjustments.
 Depending on your audio interface, there may be Hardware Gain that you can adjust in the input settings panel that you get by tapping on the input's icon in Loopy Pro's mixer.

Edwards at 16:07, 19 July 2024

2024-07-19T16:07:46Z

← Older revision		Revision as of 02:07, 20 July 2024
Line 10:		Line 10:

	'''Bluetooth Note''': if your interface is something like a SparkGo that can connect via USB or Bluetooth, use USB. Bluetooth audio (not MIDI) connections generally have too much latency for realtime music performance. Besides the latency, such devices may perform unpredictably with Loopy Pro when running in Bluetooth mode.		'''Bluetooth Note''': if your interface is something like a SparkGo that can connect via USB or Bluetooth, use USB. Bluetooth audio (not MIDI) connections generally have too much latency for realtime music performance. Besides the latency, such devices may perform unpredictably with Loopy Pro when running in Bluetooth mode.
	= First Troubleshooting =
			== First Troubleshooting ==

	== Preparation ==		== Preparation ==

Edwards at 18:00, 14 June 2024

2024-06-14T18:00:10Z

← Older revision		Revision as of 04:00, 15 June 2024
Line 10:		Line 10:

	'''Bluetooth Note''': if your interface is something like a SparkGo that can connect via USB or Bluetooth, use USB. Bluetooth audio (not MIDI) connections generally have too much latency for realtime music performance. Besides the latency, such devices may perform unpredictably with Loopy Pro when running in Bluetooth mode.		'''Bluetooth Note''': if your interface is something like a SparkGo that can connect via USB or Bluetooth, use USB. Bluetooth audio (not MIDI) connections generally have too much latency for realtime music performance. Besides the latency, such devices may perform unpredictably with Loopy Pro when running in Bluetooth mode.


	= First Troubleshooting =		= First Troubleshooting =

Line 64:		Line 62:
	* Is Loopy Pro able to record from your device?		* Is Loopy Pro able to record from your device?

	= Common Issues =		== Common Issues ==
	The most common issues are:		The most common issues are:

Line 74:		Line 72:
	* More than one audio output or input device is connected. Some MIDI peripherals with USB connections look to the OS like an audio interface. Make sure that your audio interface gets plugged in after your MIDI peripheral. You will not be able to use the audio capabilities of both your interface and another peripheral that looks to the OS like an interface at the same time and there is no easy way to switch between them other than plugging/unplugging.		* More than one audio output or input device is connected. Some MIDI peripherals with USB connections look to the OS like an audio interface. Make sure that your audio interface gets plugged in after your MIDI peripheral. You will not be able to use the audio capabilities of both your interface and another peripheral that looks to the OS like an interface at the same time and there is no easy way to switch between them other than plugging/unplugging.

	=== Volume Calibration ===		== Volume Calibration ==
	When using an audio interface, you may find that the input or output volume is not what you expect. This generally is an indication that the audio interface input and our output gain needs adjusting.		When using an audio interface, you may find that the input or output volume is not what you expect. This generally is an indication that the audio interface input and our output gain needs adjusting.

Edwards at 17:59, 14 June 2024

2024-06-14T17:59:10Z

← Older revision		Revision as of 03:59, 15 June 2024
Line 74:		Line 74:
	* More than one audio output or input device is connected. Some MIDI peripherals with USB connections look to the OS like an audio interface. Make sure that your audio interface gets plugged in after your MIDI peripheral. You will not be able to use the audio capabilities of both your interface and another peripheral that looks to the OS like an interface at the same time and there is no easy way to switch between them other than plugging/unplugging.		* More than one audio output or input device is connected. Some MIDI peripherals with USB connections look to the OS like an audio interface. Make sure that your audio interface gets plugged in after your MIDI peripheral. You will not be able to use the audio capabilities of both your interface and another peripheral that looks to the OS like an interface at the same time and there is no easy way to switch between them other than plugging/unplugging.

	'''Volume calibration project'''. This {{ :test_tool_levels_folder.zip Test Tool}} can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.		=== Volume Calibration ===
			When using an audio interface, you may find that the input or output volume is not what you expect. This generally is an indication that the audio interface input and our output gain needs adjusting.

			==== Output Level ====
			0 db output from Loopy Pro is the maximum level that an iOS device can output without distorting. If the Loopy Pro mixer volume is at 0 dB, and you feel that the volume needs to be louder, you need to increase the volume from your interface or mixer to your speakers. The volume calibration project below can be used to calibrate your system

			'''Volume calibration project'''. This [https://wiki.audiob.us/lib/exe/fetch.php?media=loopy_pro:test_tool_levels_folder.zip Test Tool project] can be useful in calibrating the output of your iPad or iPhone. It has two loops that send maximum or near maximum volume. Turn down your amplifier or mixer before playing the output as the project's files are potentially loud.

			==== Input Level ====
			When recording from external inputs, you generally want to avoid the meter going into the red (over 0 dB), and you don't want the input too quiet. Generally, start with Loopy Pro's mixer at the default 0dB fader setting. At this setting, the incoming volume is unchanged by Loopy Pro. When possible, use your audio interface/mixer to adjust the level to be close to what you want and use the Loopy Pro mixer fader to make slight adjustments.

			Depending on your audio interface, there may be Hardware Gain that you can adjust in the input settings panel that you get by tapping on the input's icon in Loopy Pro's mixer.

Michael at 06:29, 13 June 2024

2024-06-13T06:29:06Z

← Older revision		Revision as of 16:29, 13 June 2024
Line 1:		Line 1:
	[[Category:Common Issues and Troubleshooting]]		[[Category:Common Issues and Troubleshooting\|2]]

	As of iOS/iPadOS 17.5, the OS itself manages the connection to audio interfaces and apps have little influence. In most cases, when there are problems with an audio device connection the issue is system-wide and out of the control of individual apps.		As of iOS/iPadOS 17.5, the OS itself manages the connection to audio interfaces and apps have little influence. In most cases, when there are problems with an audio device connection the issue is system-wide and out of the control of individual apps.