1. Bayan
Document kënë ee hardware, interface, algorithm functions, installation instructions, ku jɔl ya design notes ye HP-DK65M microphone array kit looi në luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi de luɔɔi.
2. Prinsip design
Në ɣän juëc yiic, kɔɔr ye bɛ̈n ɣän bɛɛ̈ɛ̈i yiic, ku ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔɔr ye kɔ
Kä ye kek looi ee 4 wala 8 microphone array, ye kek mat në noise suppression, echo suppression, echo elimination, fixed beam, ku jɔl ya algorithms ye kek mat në noise field environment, ye kek bɛ̈n ya tɔ̈ɔ̈u në noise field environment, ye kek bɛ̈n ya tɔ̈ɔ̈u në noise field environment. Në ye mɛn, a tɔ̈u në wɛ̈t juëc de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈t de wɛ̈
Figure 2-1 HP-DK65M Microphone Array Kit Design Principle
3. Bayan terminoloji
Tabel 2-1 Listi de terminologies
|
Serial No |
Funksiɔn |
Description |
|
1 |
AI bɛ̈n bɛ̈n bɛ̈n bɛ̈n bɛ̈n bɛ̈n bɛ̈n bɛ̈n bɛ̈n |
Lɔ̈ɔ̈ŋ ye cɔl stable noise ku non-stable noise |
|
2 |
Lɔ̈ɔ̈i ye dɔ̈ŋ |
Lɔ̈k në beam range, pick up range adjustable |
|
3 |
Wurting Voice |
Wurting voice within beam range |
|
4 |
Echo Removal |
Gäm signal de playback de recording |
|
5 |
Dɛ̈ɛ̈r Dɛ̈ɛ̈r Dɛ̈ɛ̈r Dɛ̈ɛ̈r Dɛ̈ɛ̈r |
Lɔ̈ɔ̈ŋ ambient echo |
|
6 |
Distance pick-up, range adjustable |
Adjust different pick-up distances, range according to different scenarios |
|
7 |
Mikrofon linear |
4 wala 8 microphone heads ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r ye kɛ̈ɛ̈r |
4. Sistem Framework
Figure 4-1 System Framework
Cït mɛn ye foto 4-1 ye nyuɔɔth, ka cɛ̈ɛ̈r ye cɔl "capture board" *2, ka cɛ̈ɛ̈r ye cɔl "motherboard" *1, ka cɛ̈ɛ̈r ye cɔl "microphone capture board" ye cɛ̈ɛ̈r ye cɔl "multi-channel audio" ye cɔl "FPC line" ye cɔl "motherboard" ye c
5, Hardware Configuration and List
Hardware design ye modular design principle ye luɔ̈ɔ̈i, a thiin koor. Motherboard ye dɛmɛ bɛ̈ɛ̈i juëc ye dɛmɛ bɛ̈ɛ̈i ye dɛmɛ bɛ̈ɛ̈i ye dɛmɛ bɛ̈ɛ̈i ye dɛmɛ bɛ̈ɛ̈i ye dɛmɛ bɛ̈ Lɔnadɛ̈ ye hardware configure tɔ̈u Table 5-1, ku lɔnadɛ̈ ye hardware list tɔ̈u Table 5-2.
Tabel 5-1 Lɛt ye hardware looi
| Serial No |
Nyuɔ |
Bayan |
|
1 |
Sistem |
Sistem Linux |
|
2 |
Memori |
128MB DDR3+128MB FLASH |
|
3 |
cpu |
ARM@ A7, Dual Core, 1.2GHZ Main Frequency |
Tabel 5-2 Listi hardware
| Serial No |
Nyuɔ |
Bayan |
|
1 |
MIC1_Board |
Gathering Board 1, 4 Digital Wheat |
|
2 |
MIC2_Board |
Gathering Board 2, 4 Digital Wheat |
|
3 |
MB_Board |
Motherboard, run algorithms, output algorithms after processing audio |
|
4 |
10pin-0.5mmFPC line |
Lɔ̈ɔ̈m kɔnɔ̈ɔ̈ŋ kɔnɔ̈ɔ̈ŋ kɔnɔ̈ɔ̈ŋ kɔnɔ̈ɔ̈ŋ kɔnɔ̈ɔ̈ŋ |
|
5 |
Power/USB audio cable |
5PIN-PHS 2.0mm Interface |
|
6 |
Lɛn recovering |
4PIN-PHS 2.0mm, Lɛɛr 80 cm |
6. Wurtin
6.1 Linear collector board size
Linear collector board size: 110mm * 8mm * 1.2mm;
A ye tɛmɛ 35 mm, a ye tɛmɛ 35 mm, a ye tɛmɛ 35 mm, a ye tɛmɛ 35 mm, a ye tɛmɛ 35 mm, a ye tɛmɛ 35 mm, a ye tɛmɛ 35 mm.
6.3 Motherboard size


7, Mikrofon Array Design
7.1 Kä ye looi
(1) Mikrofon adhil bɛ̈n ya tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u ka tɔ̈ɔ̈u.
(2) Mikrofon dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈r dɔ̈ɔ̈
(3) Mikrofon bɛ̈n tɔ̈ɔ̈u në ɣän kɔ̈k yiic (ka lëu bï yen tɔ̈ɔ̈u në ɣän kɔ̈k yiic).
(4) Lɔ̈k bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i.
7.2 Mikrofon ye yic

(1) A ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye 1-1.5mm.
(2) Dɔŋ ye cɔl "voicemail hole" ka tɔ̈u 3mm.
Note: A ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni ye dɔɔni
(1) MIC's silicone cover thickness reference value is about 1mm, after compression is about 0.5mm. (1) MIC's silicone cover thickness reference value is about 1mm, after compression is about 0.5mm. (1) MIC's silicone cover thickness reference value is about 1mm, after compression is about 0
(2) Silicone ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l ye kɛ̈l
8, Software Performance Indicators
Kä ye software algorithms looi aye tɔ̈u:
| Echo elimination performance and consuming resources (Echo elimination performance and consuming resources) (Echo elimination performance and consuming resources) | Luɔi (ERLE) | CPU ye luɔ̈ɔ̈i (Mips) | RAM ye luɔ̈ɔ̈i (M) |
| Ring Wheat | Letter Back Ratio Lift > 40db | 150 | 0.42 |
| Linear Wheat | Letter Back Ratio Lift > 40db | 150 | 0.42 |
| Luɔi ye cɔl noise suppression within the beam | Luɔi (ERLE) | CPU ye luɔ̈ɔ̈i (Mips) | RAM ye luɔ̈ɔ̈i (M) |
| Noise non-stable ye | Signal noise ratio > 15db | 35.8 | 0.33 |
| Noise ye cɔl smooth | Signal noise ratio > 20db | 30 | 0.29 |
| Kuɔɔny de resonance suppression ku resource consumption | Luɔi (ERLE) | CPU ye luɔ̈ɔ̈i (Mips) | RAM ye luɔ̈ɔ̈i (M) |
| Yïïn ye jam <600ms | Lɛt ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n ye kɛ̈n | 248.3 | 0.63 |
| Yïïn ye jam <900ms | Lɛt Mix Ratio Lift > 8db | 480.4 | 1.64 |
| Algorithm's overall performance (Algorithm's overall performance) | Audio Restore | Lɔ̈k |
| Ring Wheat | >97 | <200ms |
| Linear Wheat | >95 | <200ms |
9, Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal-Soal
1, Q: Ye tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n A lëu ba tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n?
A: Mikrofon ye cɔl ring ye MIC1 (0°/360°) ye yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen Microphone linear ye 90 degrees ye yen, ku ±30 degrees ye yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen yen A lëu bɛ̈n ya cɔk tɛ̈n yen.
2, Q: Ye tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈n tɛ̈ A lëu a waar wa?
A: Dɛ̈ɛ̈r ye 20cm-300cm, dɛ̈ɛ̈r ye 20cm-300cm, dɛ̈ɛ̈r ye 20cm-300cm, dɛ̈ɛ̈r ye 20cm-300cm.
3, Q: A wïc ba tɛ̈n tɔ̈ɔ̈u ba tɛ̈n tɔ̈ɔ̈u ba tɛ̈n tɔ̈ɔ̈u ba?
A: Circular collector board install on user device level, mic head up, MIC1 direction to the user. A: Circular collector board install on user device level, mic head up, MIC1 direction to the user. A: Circular collector board install on user device level, mic head up, MIC1 direction to the user. Linear microphone collection board alëu bï ya tääu në horizontal, slope wala vertical surface de raan ye luui.
4, Q: Wɛ̈ɛ̈n ye audio format ye kɔc gɔ̈ɔ̈r? Yeŋö ye formate audio output board ye?
A: Audio format ye input to the motherboard ye 16k sampling rate, 16bit, 6 channels (8 channel recording signal + 2 channel retrieval signal), pcm; Audio format de motherboard output ye: 16k sampling rate, 16bit, mono channel, pcm bare data.
5, Q: A product support echo elimination? Yeŋö bɛ yen looi?
A: Product support echo elimination, just use the back-picking cable to play the speaker's left and right signal, get the picking board's left and right channel interface. A: Product supports echo elimination, just use the back-picking cable to play the speaker's left and right signal, get the picking board's left and right channel interface.
6, Q: Wɛ̈ɛ̈r ye HP-DK65M Microphone Array Kit looi në kaam de microphone arrays kɔ̈k?
A: HP-DK65M ye audio analog signal ku digital signal output kony; A kony ring eight wheat arrays ku linear eight wheat arrays ago kɛ̈ɛ̈l ye kɛ̈ɛ̈l ye kɛ̈ɛ̈l ye kɛ̈ɛ̈l ye kɛ̈ɛ̈l.
