The open-source community has preserved many legacy drivers. User vetz maintains a repository.

Finding the correct driver for an HSP56 device can be tricky because "HSP56" often refers to a legacy "Host Signal Processing" architecture used by both sound cards and modems in the late 90s and early 2000s. Most commonly, this hardware is powered by the C-Media CMI8738 chipset or various PCtel and Motorola modem-audio hybrids. Identifying Your HSP56 Device

Before downloading, you must confirm which version of the HSP56 chip you have, as drivers are not interchangeable:

CMI8738 / C3DX HSP56: This is a dedicated PCI sound card chip. It is often labeled as "C3DX HSP56" on the card's main processor.

PCtel / Motorola HSP56 MR: These are typically "Winmodems" that also handle audio functions. They were common in older laptops and budget desktops. HSP56 Sound Card Driver Links

Since these devices are legacy products, official manufacturer websites (like C-Media or the now-defunct PCtel) no longer host the original files. You can find verified archives on the following specialist driver repositories: Hardware Type Supported OS Download Link C-Media CMI8738 (C3DX HSP56) Win 9x, XP, 7, 8, 10 OEM Drivers - C3DX HSP56 Audio PCtel HSP56 MicroModem Win 98, ME, XP Device Inbox - PCtel HSP56 v8.00 SiS / Intel HSP56 MR Win XP, Vista, 7, 10 Driver Scape - HSP56 MR Series Legacy Archives Windows NT, 9x The Retro Web - C-Media 8738 Chips Installation Guide (Step-by-Step)

Installing legacy HSP56 drivers on modern or semi-modern Windows versions (like XP or 7) usually requires a manual approach rather than an automatic installer: C-Media CMI8738/PCI-SX (C3DX HSP56) - The Retro Web

The HSP56 typically refers to a host signal processing (HSP) modem and audio chipset often found in legacy systems, frequently branded under C-Media, SiS, or Motorola. Because these are legacy components, finding modern drivers can be difficult, as many only officially support versions up to Windows XP or Vista. 1. Identifying Your Hardware

Before downloading, you must confirm which manufacturer (vendor) produced your specific HSP56 card. Common vendors include: C-Media ( C3DX HSP56 ): Often used in budget PCI sound cards.

SiS (Silicon Integrated Systems): Often integrated on motherboards.

Motorola: Frequently associated with the modem part of these "combo" cards. To find your specific hardware ID in Windows: Press Windows + R, type devmgmt.msc, and press Enter. Expand Sound, video and game controllers.

Right-click your device, select Properties, go to the Details tab, and select Hardware Ids from the dropdown. Look for a string like PCI\VEN_1039&DEV_7013. 2. Common Driver Sources C-Media: Drivers for the audio portion (often the

chip) can sometimes be found at The Retro Web or the C-Media Download Center.

SiS/Motorola: Aggregator sites like DriverScape and DriverHub

host various legacy versions (e.g., v6.12.25.05). Use caution with third-party sites and always scan downloads for malware. Manufacturer Support: If you have an device, Solvusoft provides manual update guides. 3. Installation & Troubleshooting Guide

If you have the driver files, follow these steps to install:

How To Install Audio Drivers In Windows 11/10 - Step By Step

Finding a driver for the "HSP56" can be confusing because it refers to a specific type of "Host Software Processed" chipset often used for combined modem and sound card functions

. To get the right driver, you first need to identify which manufacturer’s version of the HSP56 you have, as different companies (like C-Media, PCtel, or SiS) used this branding for their hardware. Common Drivers by Manufacturer

Most HSP56 devices are based on one of the following chipsets. Check your hardware for these names: C-Media (C3DX HSP56 / CMI8738)

This is one of the most common versions found on PCI sound cards. You can often use the standard CMI8738 audio drivers for the sound portion of these cards. Find these on the C-Media Download Center The Retro Web PCtel (HSP56 MR)

Primarily known as a "MicroModem," these often appeared as integrated components on older motherboards.

Drivers for various versions (v2.41, v2.30) are hosted on databases like SiS / Motorola (SiS HSP56 MR)

These were frequently used in laptops and budget desktop systems. Hardware IDs for these typically start with PCI\VEN_1039&DEV_7013

. Drivers for Windows versions ranging from XP to 10/11 can be found on sites like How to Identify Your Specific Card

If you aren't sure which one you have, the most reliable way to find the correct link is by checking the Hardware ID Device Manager on your computer.

Right-click the "Unknown Device" or "Multimedia Audio Controller." Properties Hardware Ids from the dropdown menu.

Search for the "VEN" (Vendor) and "DEV" (Device) numbers online (e.g., is C-Media). HSP56 MR Drivers Download for Windows 10, 8.1, 7, Vista, XP

You are not alone. Millions of users have searched for hsp56 sound card driver link only to hit a wall. Here is why:

A: Yes. MR (Modem Riser) drivers include AT/V.90 modem functions. MC-Link is pure audio. The links above contain both. Use hsp56mr.inf for modem/audio combo cards.

This is the most common audio chipset associated with HSP56 motherboards.

The ‘Driver Guide’ legacy database (use with ad-blocker). Look for version 4.32.19.0 or 5.1.2600.0.

Because the HSP56 driver was never built for modern OS, you must disable driver signature enforcement temporarily.

The Internet Archive hosts a complete dump of the original Conexant HSP56 driver CD.