This is a high performance sound card with two output channels using 24 bits DACs at 192kHz sample rate.
| HW Version | Board | Board HW Version | Notes |
|---|---|---|---|
| All | Peripheral.AudioAmp | >= 2.0 |
| FW Version | Board | Board HW Version | Notes |
|---|---|---|---|
| >= 2.2 | Device.SoundCard | >= 1.0 | Bpod serial communication not supported |
| <= 2.2 | Device.SoundCard | >= 1.0 |
- Internal memory to store sounds, enabling low-latency sound delivery
- Pre-selected sounds can be triggered using an external TTL
- Internal wave generator allows the user to configure a pure tone without loading a sound file
- Stereo 24 bit @ 192 kHz maximum sampling rate outputs
- THD: -111dB (1 kHz @ 2 V rms)
- Noise Floor: 20 µV rms | -94 dB (20 Hz – 80 kHz)
- SNR: 100 dB | 113 dbA (20 Hz – 80 kHz @ 2 V rms)
- 1x clock sync input (CLKIN) [stereo jack]
- 1x USB (for computer communication) [USB Mini-B]
- 1x micro USB (for sounds loading) [USB Micro-B]
- 1x 12V supply [barrel connector jack]
- 1x reset button [tactile switch]
- 1x output for the left channel [RCA]
- 1x output for the right channel [RCA]
- 3x general purpose digital outputs (3.3V or 5V) (OUT0-OUT2) [screw terminal]
- 3x general purpose digital inputs (5V tolerant) (IN0-IN2) [screw terminal]
- 2x analog inputs (3.3V máx - 5V tolerant) (ADC0-ADC1) [screw terminal]
The interface with the Harp Soundcard can be done through Bonsai or a dedicated GUI (Graphical User Interface).
In order to use this GUI, there are some software that needs to be installed:
1 - Install the drivers.
2 - Install the runtime.
3 - Reboot the computer.
4 - Install the GUI.
To install the proper drivers to interface with the device, follow the next steps in sequence.
1 - Connect both Harp Sound Card's USB ports to the computer.
2 - Launch the previously installed Harp Sound Card GUI.
3 - Click on the button Open Drivers folder and launch the zadig-2.3.exe.
4 - (1) Select the Harp Sound Card from the list. If the device is not available, go to Options -> List All Devices.
5 - (2) Select the WinUSB driver and click Install WCID Driver.
| Tag | Description |
|---|---|
| SoundCard-* | Firmware for the sound card's microcontroller (8 bits processor) |
| SoundCard.PIC32-* | Firmware for the sound card's 32 bits processor |
1 - Install the Harp Converto to CSV.
2 - Open the Harp Convert to CSV application and write bootloader under List box on the Options tab
3 - Select the correspondent COM port and then select the firmware to be loaded for both microcontrollers
Each subdirectory will contain a license or, possibly, a set of licenses if it involves both hardware and software.