HARK Document Version 2.1.0. (Revision: 7522) : Sound recording test with Multiface in HARK

8.2.2 Sound recording test with Multiface in HARK

Prior to sound recording, confirm devices. Table 8.3 shows the devices to be used.

Table 8.3: List of device to be used

Device name	Description
Hammerfall DSP Multiface	A/D, D/A conversion device
Digital Audio CardBus Interface	Card to add Multiface connection ports to PCMCIA slot
Octa Mic	Microphone preamplifier

$\includegraphics[width=120mm]{fig/device/Multiface.eps}$

Figure 8.6: RME Hammerfall DSP Multiface (front)

$\includegraphics[width=120mm]{fig/device/Multiface2.eps}$

Figure 8.7: RME Hammerfall DSP Multiface (Rear)

$\includegraphics[width=120mm]{fig/device/CardBus.eps}$

Figure 8.8: PCMCIA CardBus Interface for Hammerfall DSP System

$\includegraphics[width=120mm]{fig/device/OctaMic.eps}$

Figure 8.9: RME OctaMic (Front)

$\includegraphics[width=120mm]{fig/device/OctaMic2.eps}$

Figure 8.10: RME OctaMic (Rear)

For the sound recording test for HARK, change only the property of each module with the network file test.n, similar to that shown in Figure 8.2. Table 8.4 shows the setting of each property.

> ./test.n

Entering the above, the speech of the analog input 1 of Multiface is recorded for three seconds. The speech of PCM 16-bit quantization and 32kHz sampling are saved in the little endian RAW format.

Table 8.4: Properties of the sound recording network

Module name	Property name	Type of value	Set value
AudioStreamFromMic	LENGTH	`int`	1024
	ADVANCE	`int`	320
	CHANNEL_COUNT	`int`	8
	SAMPLING_RATE	`int`	32000
	DEVICETYPE	`string`	ALSA
	DEVICE	`string`	plughw:1,0
ChannelSelector	SELECTOR	`Object`	$<$`Vector` $<$`int` $>$ 0 $>$
SaveRawPCM	BASENAME	`string`	sep
	ADVANCE	`int`	320
	BITS	`int`	16
Iterate	MAX_ITER	`int`	300