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Question  Which TC Helicon products support USB audio for use as an interface to record with my computer  Answer  Many TC Helicon devices support USB audio, allowing you to use your device as an audio interface to record with your computer.  Not all gear is created equal however, and some are more capable than others when it comes to USB audio.For Windows users, a couple of our products do require their own driver install, and the rest are compatible with Windows drivers like DirectSound, WaveOut, Wasapi, and Asio.If your DAW cannot see your connected TC Helicon device, please see this page.If youre on a Mac, no additional drivers are necessary as our gear is class compliant with Macs. Below is an overview of which TC Helicon gear supports USB audio and to what extent   VoiceLive Play, Play GTX, PlayAcoustic, PlayElectric:  2 channels, locked as a stereo pair in both directionsUSB audio from your computer to your VoiceLive is a stereo pair (channel 1 is left, channel 2 is right) useful for sending backing tracks to the VoiceLiveUSB audio from your VoiceLive to your computer will always be a wet stereo mix of vocals and guitar (except Play which doesn't utilize guitar)It is not possible to send the vocal and guitar signals from your VoiceLive both simultaneously and separately.  If you wish to process multiple stereo tracks, we recommend recording guitar and vocals in separate passes  for example recording your guitar in stereo first, and then recording stereo vocals over that.16-bit @ 44.1kHz, and 16-bit @ 48kHz  VoiceLive 2:  2 channels, with various input and output modesInput modes: Stereo and Vox L / Inst ROutput modes: Full Mix, Dry Vox&Gtr, and Wet Vox&Gtr16-bit @ 44.1kHz, and 16-bit @ 48kHzPages 33 and 84 of manual  VoiceLive 3 (original and Extreme):  2 channels, with various input and output modesSee this article for more details16-bit @ 48kHzPage 72 of manual  VoiceLive Rack:  2 channels, with various input and output modesInput modes: Stereo and Vox L / Inst ROutput modes: Full Mix and Vocal & GuitarMore info here16-bit @ 44.1kHz, and 16-bit @ 48kHzPage 39 of manual  VoiceLive Touch 1:  2 channels, with multiple i/o modesUSB audio modes: Stereo, Insert, and Track16-bit @ 44.1kHz, and 16-bit @ 48kHzPage 25 of manual  VoiceLive Touch 2:  2 channels, with a couple of different modesIn the Setup menu, if you leave the Input as your microphone (eg. Dynamic) and the Output as whatever you normally use (eg. Stereo) then USB audio coming from your computer to the Touch 2 will be dry in stereo (great for backing tracks), and USB audio going from your Touch 2 to your computer will be a wet stereo mix of vocals and guitar.Setting the Touch 2s Input to USB disables the hardware microphone and guitar inputs.  With this setting, USB audio sent from your computer to the Touch 2 is expected to be panned  audio panned left to channel 1 will be sent through the vocal path, and audio panned right to channel 2 will be sent through the guitar path for guiding harmonies.  USB audio leaving the Touch 2 to your computer will be a wet stereo mix of your vocals only  the guitar track is not passed back out of the Touch 2, its just being input to guide your harmony voices.Some VoiceLive Touch 2s have issues with USB audio - see here16-bit @ 44.1kHz, and 16-bit @ 48kHzPage 55 of manual  Perform-VK:  4 input channels and 8 output channelsA driver install is required for Windows machines, available hereUSB audio coming from your computer into Perform-VK can be routed to the following input channels:     Channels 1 and 2 (Aux L and Aux R respectively) are a stereo pair for sending a backing track into Perform-VK, this can be used to guide the harmony voices.  These are not passed through USB back to your computer, but they are passed to Perform-VKs 6.5mm analog outputsChannel 3 (Dry Voice) is routed through the units vocal path, then back out the analog outputs and through USB back to your computer.  If signal is detected on this channel, it will disable the XLR microphone input on the Perform-VKChannel 4 (NaturalPlay Guide) is a mono guidance track for chord tracking.  This is essentially a silent backing track that is not passed to Perform-VKs outputs, it is only used to guide harmonies     USB audio leaves the Perform-VK on these output channels:     Channels 1 and 2 (Mix L and Mix R respectively) are a stereo mix of Perform-VKs main 6.5mm outputs, less the audio received from USB inputChannel 3 (Dry Voice) is what youre singing into your XLR microphone, with no effects addedChannel 4 (Unused) has no function, its just there to keep the others companyChannels 5 and 6 (Dry Inst/Aux L and Dry Inst/Aux R respectively) are a stereo pair of unprocessed auxiliary and instrument signalsChannels 7 and 8 (Dry Harmony L and Dry Harmony R respectively) are a stereo pair of the harmony voices without your input lead voice     16-bit @ 48kHz, and 24-bit @ 48kHzPage 11 of manual Perform-VE:  5 input channels and 6 output channelsA driver install is required for Windows machines, available hereUSB audio coming from your computer into Perform-VE can be routed to the following input channels:     Channels 1 and 2 (Aux L and Aux R respectively) are a stereo pair for sending a backing track into Perform-VE.  These are not passed through USB back to your computer, but they are passed to Perform-VEs 6.5mm analog outputsChannel 3 (Dry Voice) is routed through the units vocal path, then back out the analog outputs and through USB back to your computer.  If signal is detected on this channel, it will disable the XLR microphone input on the Perform-VE.  When USB audio on channel 3 stops, the Set button will flash - pressing the Set button at this time will change the voice input back to the XLR microphone input.Channel 4 (Sample) is a reserved channel for the iOS app to send samples to the Perform-VE.  It has no function in the context of a DAWChannel 5 (NaturalPlay Guide) is a mono guidance track for chord tracking.  This is essentially a silent backing track that is not passed to Perform-VEs outputs, it is only used to guide the Hardtune effect     USB audio leaves the Perform-VE on these output channels:     Channels 1 and 2 (Mix L and Mix R respectively) are a stereo mix of Perform-VEs main 6.5mm outputs, less the audio received from USB inputChannel 3 (Dry Voice) is what youre singing into your XLR microphone, with no effects addedChannel 4 (Sample) is a reserved channel for the iOS app to receive samples from the Perform-VE.  It has no function in the context of a DAWChannels 5 and 6 (Aux L and Aux R respectively) are a stereo pair of the unprocessed auxiliary signal     16-bit @ 48kHz, and 24-bit @ 48kHzPage 24 of manual Blender:  2 input channels and 12 output channelsA driver install is required for Windows machines, available hereUSB audio from your computer to the Blender is a stereo pair (channel 1 is left and channel 2 is right), the level of which is controlled from the sending computer.  This is sent to all four headphone outputs (A, B, C, D), each of which has its own output gain but no separate input control for this incoming USB audio, meaning you cannot send USB audio from your computer to just one Blender output (eg. just to A).USB audio from the Blender to your computer is a mirror of the 6 stereo inputs (thus 12 channels, each a panned pair).  These USB channels are not affected by the input and output gains on Blender itself, input audio is sent out via USB before your gains, meaning the USB levels are the sending levels of the connected sound sources.16-bit @ 48kHz, and 24-bit @ 48kHz