Audio Demos

Audio Coder	WideSound
High-Compression Speech Coder	OpenSound
High-Quality Speech Coder	MotionSound
Playback Speed Control	SurroundSound
Voice Changing (VX)	ClearTalk
Sound Effect	Music Beat Tracking (BT)

Audio Coder (AC)

AC-7: Signal sampled @ 16kHz. Original audio data rate at 256 kbps.

High-Compression Speech Coder (HCSC)

HCSC-4 with Robust Channel Error Protection: Signal sampled @ 8kHz. Original speech data rate at 128 kbps. Compressed speech at 2 kbps. (compression ratio = 64:1).

NOTE: Using Error Protection (EP) increases the bit rate (e.g., for HCSC@2.0 kbps, the bit rate with error protection goes up to 3.6 kbps).

HCSC-5: 11.025kHz sample rate. Original speech data rate at 176.4kbps (compression ratio = 54:1).

High-Quality Speech Coder (HQSC)

HQSC-4: Signal sampled @ 8kHz. Original signal data rate at 128 kbps.

HQSC-5: Signal sampled @ 11.025kHz. Original signal at 176.4 kbps.

HQSC-7: Signal sampled @ 16kHz. Original signal at 256 kbps.

WideSound (For desktop PC listening, put the two loudspeakers close to each other in front of the monitor to simulate two closely-spaced speakers in a handheld device. Preferred speaker setup: separation=12cm; listening distance=50cm)

OpenSound (Use stereo headphone to listen)

Original audio files are either mono or stereo.

MotionSound (1) (Use two loudspeakers to listen. Preferred speaker setup for desktop PC: separation=70cm; listening distance=70cm)

MotionSound (2) (Use stereo headphone to listen.

MotionSound (3) - Audio Scene Rendering (Use stereo headphone to listen.

SurroundSound (Use stereo headphone to listen: 6-channel audio source converted into 2-channel stereo using conventional method vs. SurroundSound technology.)

ClearTalk

Music Beat Tracking (BT)

Music fountain audio/visual demo (Light activated by music beat, and water heights controlled by audio intensity)

Playback Speed Control (0.7 and 2 times normal speaking speed)

Voice Changing (VX)

Sound Effect

Pitch (Key) Shift

Equalizer (Music style)

Reverberation/Echo