HARK version 1.1.0 Document : Recording test in HARK with radio RASP

8.1.3 Recording test in HARK with radio RASP

Confirm the equipment prior to recording. Use equipment similar to that in table 8.1.

Table 8.1: List of devices to be used

Device name	Description
Wireless RASP	A/D, D/A conversion device
Router for wireless LAN	For connection between RASP and host PC
PC	PC to operate the radio

For a speech recording test with HARK, use the network file test.n shown in Figure 8.2. The connection route is from MatrixToMap to SaveRawPCM , from AudioStreamFromMic via ChannelSelector . Table 8.2 shows the setting for each property.

$>$ ./test.n

By setting the above, the speech of the analog input 1 of radio RASP is recorded for three seconds. Speech of PCM 16-bit quantization and 16kHz sampling is saved in the little endian RAW format.

$\includegraphics[bb=0 0 1200 800,width=120mm]{fig/device/WS-sample.png}$

Figure 8.2: Network (test.n)

Table 8.2: Properties of a speech recording network

Module name	Property name	Type of value	Set value
AudioStreamFromMic	LENGTH	`int`	512
	ADVANCE	`int`	160
	CHANNEL_COUNT	`int`	16
	SAMPLING_RATE	`int`	16000
	DEVICETYPE	`string`	WS
	DEVICE	`string`	192.168.0.1
ChannelSelector	SELECTOR	`Object`	$<$ `Vector` $<$ `int` $>$ 0 $>$
SaveRawPCM	BASENAME	`string`	sep
	ADVANCE	`int`	160
	BITS	`int`	16
Iterate	MAX_ITER	`int`	300