Audio Signal Improvement on D740 Architecture

A udio S ignal I mprovement on D 740 A rchitecture - Seconda Edizione della 3-Giorni DRESD - 24 Luglio 2007 Hotel Villa Gina Goglio

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Environment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Diopsis 740 Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object]

Diopsis 740 Architecture Arm7TDMI 32kB ARM Mem ASB / APB Bridge mAgic VLIW DSP core 8kx128 bit Program Mem Shared Memory Data Buffer 2 x 2k word Double Bank, Double Port ASB Data / Program Bus Mux Program Bus Mux / Demux Data Bus Mux / Demux Data Mem 2 x 6k x 40 bit Double Bank Double Port SPI0 USART0 USART1 TIMER Watchdog PIO PDC ADDA Clock Gen IRQ Ctrl SPI1

Diopsis 740 Architecture - ARM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Diopsis 740 Architecture – mAgic DSP ,[object Object],[object Object],[object Object],* * Taken from ATMEL Diopsis Overview – July 2004 Benchmark mAgic DSP Core ADSP-21161 SHARC TMS320C6711-100 TMS320C6711-150 1024-point complex Radix-4 FFT 59 usec 92 usec 1 44 usec 96 usec Complex FIR filter (100 coefficients, 100 output samples) 139 usec 206 usec 215 usec 144 usec Vector addition (100 vector) 0.11 usec 0.108 usec 0.108 usec Not available Vector dot product on real vector(100 vector) 0.11 usec 0.056 usec 0.074 usec 0.050 usec

JTST Board Architecture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],CLK DIV 3.3V LED IRQ BUTTON PIO CONN SRAM ARM DATA L 128kx8 SRAM ARM DATA H 128kx8 FLASH ARM PRG 1Mx16 SSRAM MAGIC DATA L 128kx36 EXTCLK CONN DIP SWITCH SPI-0 CONN M-ICE JTAG CONN Diopsis 740 PIO USARTs RST XMA XMD[15:0] CLKs CNTRLs SPIs ADDA ARMD PLL ICE ARMC ARMA XMD[55:40] XMD[31:16] XMD[71:56] XMD[39:32] XMD[79:72] SSRAM MAGIC DATA H 128kx36 SSRAM MAGIC DATA E 128kx36 USB CNTRL USB CONN EXT PSU CONN CODEC CODEC CODEC CODEC CLK DIV 25 MHz OSC RS 232 BUFF RS 232 BUFF USART 0 CONN USART 1 CONN 7-SEG DISPLAY GND GND RESISTOR NETWORK RESISTOR NETWORK 6 MHz D-9 RS232 CONN D-9 RS232 CONN RST BUTTON VREG 5-1.8 SPI-1 CONN VREG 5-3.3 USB LED LED BUFF RST BUFF ADDA BUFF POW-ON RST AUDIO OUT CONN AUDIO IN CONN AUDIO OUT CONN AUDIO IN CONN AUDIO OUT CONN AUDIO IN CONN AUDIO OUT CONN AUDIO IN CONN RESISTOR NETWORK RESISTOR NETWORK RESISTOR NETWORK RESISTOR NETWORK RESISTOR NETWORK JP8 JP9 JP5 JP4 JP11 JP7 JP2 JP3 JP6 JP10 JP1 TP5 TP2 TP1 TP4 TP3 TP7 TP8 TP6 TP9 TP10 TP11

JTST Board Architecture CLK DIV 3.3V LED IRQ BUTTON PIO CONN SRAM ARM DATA L 128kx8 SRAM ARM DATA H 128kx8 FLASH ARM PRG 1Mx16 SSRAM MAGIC DATA L 128kx36 EXTCLK CONN DIP SWITCH SPI-0 CONN M-ICE JTAG CONN Diopsis 740 PIO USARTs RST XMA XMD[15:0] CLKs CNTRLs SPIs ADDA ARMD PLL ICE ARMC ARMA XMD[55:40] XMD[31:16] XMD[71:56] XMD[39:32] XMD[79:72] SSRAM MAGIC DATA H 128kx36 SSRAM MAGIC DATA E 128kx36 USB CNTRL USB CONN EXT PSU CONN CODEC CODEC CODEC CODEC CLK DIV 25 MHz OSC RS 232 BUFF RS 232 BUFF USART 0 CONN USART 1 CONN 7-SEG DISPLAY GND GND RESISTOR NETWORK RESISTOR NETWORK 6 MHz D-9 RS232 CONN D-9 RS232 CONN RST BUTTON VREG 5-1.8 SPI-1 CONN VREG 5-3.3 USB LED LED BUFF RST BUFF ADDA BUFF POW-ON RST AUDIO OUT CONN AUDIO IN CONN AUDIO OUT CONN AUDIO IN CONN AUDIO OUT CONN AUDIO IN CONN AUDIO OUT CONN AUDIO IN CONN RESISTOR NETWORK RESISTOR NETWORK RESISTOR NETWORK RESISTOR NETWORK RESISTOR NETWORK JP8 JP9 JP5 JP4 JP11 JP7 JP2 JP3 JP6 JP10 JP1 TP5 TP2 TP1 TP4 TP3 TP7 TP8 TP6 TP9 TP10 TP11

JTST Board Architecture LINE IN LINE OUT ARMSYSTEM mAgic SYNC SRAM mAc DATA/PROG 3 x 128k x 36 1728 kB PIO (user) EXT PSU (5V) USART IF 32 bit ARM BUS AUDIO CODEC FLASH ARM/mAgic - PROG 2MB SRAM ARM - DATA 256 kB Diopsis 740 V REG 5V/1.8V RESET LOGIC 3.3V HW RST EXT CLK 3.3V JTAG ARM ICE ARM CS0 Pllclkin SPI IF 2 x 2 x PIO (user) 25 MHz OSC ARM CS1 ARM CS2 ARM CS3 40 bit mAgic BUS PIO (wd_ovf) PIO (timer in) 3 6 fpu_halt fpu_ exc fpu_ mode PIO (ext irq) PIO (fpu sirq) 7 3 7 PIO (timer out) 2 Pllclkout Plllock L P FILTER Plllft 5 2 WDG RST 1.8V USB DEVICE CONTROLLER USB DEVICE PORT 4 x 4 x ,[object Object],IRQ V REG 5V/3.3V Pllen TP TP

JTST Operating System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

JTST Development ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spectral Subtraction ,[object Object],* = X(f) = Y(f) - N(f) x(t) FFT y(t) = x(t) + n(t) IFFT

Spectral Subtraction ,[object Object],[object Object],[object Object],[object Object],X(f) = Y(f) - N(f) x(t) FFT y(t) = x(t) + n(t) IFFT

Simple Microphone Preamplifier ,[object Object],[object Object],[object Object],[object Object],[object Object]

Possible Improvements ,[object Object],[object Object],[object Object]

Direction Of Arrival ,[object Object],[object Object],[object Object]

[object Object],[object Object],Triangulation

Our Microphone Array Preamplifier ,[object Object],[object Object],[object Object],[object Object]

Future Vision : SS + DOA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Audio Signal Improvement on D740 Architecture

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Audio Signal Improvement on D740 Architecture