# DSP Master Course
20 modules, built directly on `` . Real, quizzable depth exists only for FP-8A/FP-12A — modules with no local source are marked PENDING VERIFICATION rather than filled with invented DSP theory.
## Exercises & Homework (course-level)
Homework: build a full input/output signal-flow diagram for FP-8A using Module 1's real spec, then repeat for FP-12A and note every difference. This is the single best exercise available in this course, since it uses two independently documented real product manuals.
### Module 1: Signal Flow
FP-8A: '10 Channel High Level, 2 Channel Low Level, Digital Bluetooth 5.1, Optical Fibre' input → '10 Channel low level output, 8 Channel power amplifier' output. FP-12A: '8 Channel high level, 2 Channel Low Level, Digital Bluetooth 5.0, Optical, Coaxial' input → '8 Channel power amplifier, 12 Channel low level output'. _(Source: -12A Owner's Manual)_
**Exercise:** Using the real data above, explain signal flow behavior for the SKU(s) cited.
**Certification question:** FP-8A accepts how many High Level input channels? (Answer: 10 — see .)
### Module 2: DSP Architecture
PENDING VERIFICATION — no internal block-diagram or chip-level architecture document exists locally beyond the ADC/DAC chip names already listed in Master Data (`long_description`) for individual SKUs (e.g. FP-16-ULTRA: 'AK5704 x5 chip ADC... PCM1681 x2 chip DAC').
**Exercise / Certification question:** PENDING VERIFICATION — no real content exists for this topic yet; do not quiz on invented facts.
### Module 3: Inputs
See `input_type` field per SKU in Master Data (varies: High Level, Low Level, Optical, Digital BT, USB, OTG combinations). Real detail for FP-8A/FP-12A above.
**Exercise:** Using the real data above, explain inputs behavior for the SKU(s) cited.
**Certification question:** PENDING VERIFICATION — draft one using the cited real values above once reviewed by a Technical Engineer.
### Module 4: Outputs
FP-8A: 8-channel power amplifier + 10-channel low-level output. FP-12A: 8-channel power amplifier + 12-channel low-level output. Other DSP SKUs: see `dsp_processing_channels` field, no further .
**Exercise:** Using the real data above, explain outputs behavior for the SKU(s) cited.
**Certification question:** PENDING VERIFICATION — draft one using the cited real values above once reviewed by a Technical Engineer.
### Module 5: Routing
PENDING VERIFICATION — no channel-routing/mapping document exists beyond the raw in/out channel counts already captured.
**Exercise / Certification question:** PENDING VERIFICATION — no real content exists for this topic yet; do not quiz on invented facts.
### Module 6: Time Alignment
FP-8A: '0.000 to 13.000ms, 0cm to 442cm'. FP-12A: '0.000 to 15.000ms, 0 to 500cm'. _(Source: )_. Other DSP SKUs: PENDING VERIFICATION.
**Exercise:** Using the real data above, explain time alignment behavior for the SKU(s) cited.
**Certification question:** What is FP-12A's maximum time alignment range in milliseconds? (Answer: 15.000ms, 0-500cm.)
### Module 7: Phase
FP-8A / FP-12A: 'Phase: In Phase or Out Phase (0°~180°)', adjustable per output channel. _(Source: )_. Other DSP SKUs: PENDING VERIFICATION.
**Exercise:** Using the real data above, explain phase behavior for the SKU(s) cited.
**Certification question:** What phase adjustment range do FP-8A and FP-12A support? (Answer: 0°-180°, In Phase or Out Phase.)
### Module 8: Crossover
FP-8A / FP-12A: multi-order high/low-pass independent filter per channel. Professional filter types: Butterworth, Linkwitz-Riley (FP-12A also lists Bessel per FP-8A's ). Crossover point 20Hz~20kHz (1Hz resolution). Slope -6dB/Oct to -48dB/Oct. _(Source: )_. Other DSP SKUs: PENDING VERIFICATION.
**Exercise:** Using the real data above, explain crossover behavior for the SKU(s) cited.
**Certification question:** What is the crossover slope range on FP-8A/FP-12A? (Answer: -6dB/Oct to -48dB/Oct.)
### Module 9: EQ
FP-8A: 31-band EQ, Frequency Range 20Hz~20kHz (1Hz accuracy), Q 0.4~10, Gain -12.0dB~+12.0dB (0.1dB steps). FP-12A: 31-band EQ, Gain -20.0dB~+20.0dB (0.1dB steps). _(Source: )_. Other DSP SKUs with '31 dải' / '31-band EQ' mentioned in tagline (e.g. FP-6A-V2): band count confirmed from Master Data, but exact frequency/Q/gain range not locally documented — PENDING.
**Exercise:** Using the real data above, explain eq behavior for the SKU(s) cited.
**Certification question:** How many EQ bands does FP-8A have, and what is its gain range? (Answer: 31-band, -12.0dB to +12.0dB in 0.1dB steps.)
### Module 10: Bluetooth
FP-8A: 'Digital Bluetooth 5.1' (input type field). FP-12A: 'Digital Bluetooth 5.0'. FP-16-PURE: QCC5171 chip, BT 5.3 (per Master Data long_description). Other DSP SKUs: see `input_type` field per SKU; PENDING if not specified.
**Exercise:** Using the real data above, explain bluetooth behavior for the SKU(s) cited.
**Certification question:** What Bluetooth version does FP-8A support? (Answer: 5.1.)
### Module 11: USB
FP-8A / FP-12A: USB Type B — connects to PC tuning software, driver-free automatic installation. Windows-only software confirmed locally (FP-12A.exe, FP-16Pure-DSP-Manager(Win).rar — see AI Knowledge Base). macOS/Linux support: PENDING.
**Exercise:** Using the real data above, explain usb behavior for the SKU(s) cited.
**Certification question:** PENDING VERIFICATION — draft one using the cited real values above once reviewed by a Technical Engineer.
### Module 12: Optical
FP-8A: 1 set stereo (L/R) optical fibre input. FP-12A: Optical + Coaxial digital inputs. Other DSP SKUs: see `input_type` field.
**Exercise:** Using the real data above, explain optical behavior for the SKU(s) cited.
**Certification question:** PENDING VERIFICATION — draft one using the cited real values above once reviewed by a Technical Engineer.
### Module 13: High Level
Present on most DSP SKUs per `input_type` field (e.g. FP-6A-V2: '4 ch high level'). FP-8A hardware note: some vehicles' speaker-level output has no DC signal — requires ACC mode instead of HOST mode in that case (see Ground/Turn-On below). _(Source: manual)_
**Exercise:** Using the real data above, explain high level behavior for the SKU(s) cited.
**Certification question:** PENDING VERIFICATION — draft one using the cited real values above once reviewed by a Technical Engineer.
### Module 14: Low Level
Present on most DSP SKUs per `input_type` field (typically 2 channels RCA/Low Level). Input Impedance for FP-8A: Low Level 15KΩ, High Level 22Ω. FP-12A: Low Level 15KΩ, High Level 390Ω. _(Source: )_
**Exercise:** Using the real data above, explain low level behavior for the SKU(s) cited.
**Certification question:** What is FP-8A's Low Level input impedance? (Answer: 15KΩ.)
### Module 15: Noise
PENDING VERIFICATION — no DSP-specific noise-diagnosis section was (the real Interference/noise-diagnosis content found this pass is on the Amplifier side, FX-4 — see ).
**Exercise / Certification question:** PENDING VERIFICATION — no real content exists for this topic yet; do not quiz on invented facts.
### Module 16: Ground
PENDING VERIFICATION for DSP units specifically — the DSP manuals' Hardware Interface sections describe the ACC/HOST turn-on switch but not a dedicated ground-wire procedure. See for the real ground-wiring procedure (FX-4).
**Exercise / Certification question:** PENDING VERIFICATION — no real content exists for this topic yet; do not quiz on invented facts.
### Module 17: Gain
FP-8A: Output Signal Gain range Mute, -96dB~0dB. FP-12A: Mute, -60dB~0dB. _(Source: )_
**Exercise:** Using the real data above, explain gain behavior for the SKU(s) cited.
**Certification question:** What is FP-12A's output gain range? (Answer: Mute, -60dB to 0dB.)
### Module 18: Protection
PENDING VERIFICATION — no DSP-specific protection-circuit section was (Troubleshooting sections cover No Power/No Sound/USB issues, not overload/short-circuit protection). See for the real protection-circuit content found on the Amplifier side (FX-4).
**Exercise / Certification question:** PENDING VERIFICATION — no real content exists for this topic yet; do not quiz on invented facts.
### Module 19: Cooling
PENDING VERIFICATION — no DSP-specific cooling/thermal guidance was .
**Exercise / Certification question:** PENDING VERIFICATION — no real content exists for this topic yet; do not quiz on invented facts.
### Module 20: Calibration
PC tuning software ('AUDIO ARCHITECT' per FP-10-V5's Master Data long_description; FP-8A/FP-12A manuals reference their own DSP Manager software) allows preset save: FP-8A saves 6 presets, FP-12A saves 9 presets. _(Source: Master Data)_
**Exercise:** Using the real data above, explain calibration behavior for the SKU(s) cited.
**Certification question:** How many presets can FP-12A save via its PC tuning software? (Answer: 9.)DSP Master Course
Intermediate · ACADEMY