Hsp56 Sound Card Driver

HSP56 Sound Card Driver — Comprehensive Analysis

Note: I assume “HSP56” refers to a 56K modem/sound card hybrid or a specific chipset/driver family used for audio/modem functionality (common in late-1990s/early-2000s PC hardware). If you meant a different product, let me know and I’ll adapt this analysis.

3. How to find the Driver

Since the manufacturer could be anyone (Asus, GVC, Motorola, Zoltrix, etc.), you cannot search just by "HSP56." You need the specific model.

Method A: Visual Inspection Open the computer case (or remove the card). Look for the largest black square chip on the board. It will likely say one of the following: hsp56 sound card driver

• PCtel: (e.g., PCT789, HSP56, Mars 3).
• C-Media: (e.g., CMI8738).
• ESS: (e.g., ES1869, ES1978).
• Motorola: (e.g., SM56).

Method B: The FCC ID (Most Accurate) Look for a sticker on the card that says "FCC ID." Go to the FCC ID Search website and type in that code. This will tell you the exact manufacturer of the card.

For Windows 2000 / Windows XP (32-bit)

Challenge: HSP56 drivers are often rejected by Windows XP WHQL test. You must disable driver signing. HSP56 Sound Card Driver — Comprehensive Analysis Note:

Steps for XP:

1. Press F8 during boot (right after POST, before Windows logo).
2. Select Disable Driver Signature Enforcement.
3. Once booted, open Device Manager.
4. Right-click the yellow-banged "Multimedia Audio Controller" → Update Driver.
5. Choose Install from a list or specific location → Don't search. I will choose the driver.
6. Click Have Disk → Point to the extracted HSP56/C-Media folder.
7. Select "C-Media AC97 Audio Device" or "HSP56 Audio".
8. Accept the "Not digitally signed" warning.
9. Reboot normally (driver signature enforcement will be re-enabled, but the driver remains).

For Avance Logic ALS100/ALS4000

• ALS4000 driver for Windows 9x/XP: Available via the “ALS4000 driver package 4.04.02” – mirrors exist on Retro Driver Archive.
• Windows Update Catalog: For XP, sometimes Microsoft hosted a signed ALS4000 driver. Search for "Avance Logic WDM".

What is the HSP56?

The term "HSP56" typically refers to Host Signal Processing (HSP) audio modems and sound cards, most notably those manufactured by PCtel. PCtel: (e

Unlike modern sound cards that have a dedicated processor (DSP) to handle audio processing, HSP cards relied on the computer's main CPU to do the heavy lifting. This made the hardware very cheap to produce, which is why they were common in budget pre-built PCs from that era.

Common Chipsets:

• PCtel HSP56 Micromodem: Often combined sound and modem functionality.
• C-Media CMI8330 / CMI8338: Many cards labeled as HSP56 actually utilized C-Media chipsets.
• ESS Technology: Some ESS Solo-1 cards were marketed with similar HSP architecture.

3. Functionality provided

• Audio:
  • Playback and capture (likely up to 16-bit/44.1kHz if AC’97; older codecs less).
  • Mixer controls (volume, input selection, mic gain).
  • Possibly full-duplex operation (simultaneous play and record) but limited by hardware/bus bandwidth.
• Modem:
  • Dial, connect, handle V.90/V.92 protocols, fax classes (Class 1/2/2.0), caller ID, tone detection.
  • AT command interface accessible via a virtual COM port.
• Telephony integrations:
  • Possible TAPI (Telephony API) support for voice applications.