HiFi 2 & HiFi EP Audio DSP Product Brief
Everything You Wanted to Know About Blu-ray Audio, but were afraid to hear
Put Low-Power, Low-Overhead, High-Fidelity Digital Sound in Your Next ASIC or SOC
A Designer's Guide to HD Video Pre- and Post-Processing
How to Add Low-Power, Multi-Codec Digital Video and Audio to Your Next ASIC or SOC Design
2011 Linley Tech Moble Conference Presentation

In October 2009, the HiFi Audio Engine became the first IP core to achieve DTS-HD Master Audio logo certification. Having the HiFi DSP IP core certified independent of the choice of silicon implementation significantly eases our customers' efforts to design Blu-ray Disc and Audio Video Receiver SOCs and complete chip and system level certification with DTS.
While the HiFi 2 Audio DSP will run all DTS applications, HiFi EP's architectural enhancements significantly improve DTS Master Audio decoding and tolerance to high external memory latency. With HiFi EP, single-core Blu-ray Disc SOCs can easily be implemented in 65GP with additional MHz to spare for other audio functions.
“We are delighted that Tensilica has passed the rigorous testing to achieve DTS-HD Master Audio logo certification on the HiFi DSP,” says Brian Towne, executive vice president and general manager, DTS. “The performance efficiency of the architecture is outstanding and will lead to lower cost designs. This benefits everyone developing next generation Blu-ray Disc player and AVR SOCs and will contribute to the growth of the Blu-ray Disc hardware market as a whole."
The complete range of DTS audio technologies for the consumer electronics market are available. These range from DTS Digital Surround all the way up to DTS-HD Master Audio, which provides up to 7.1 discrete channels of sound that are bit-for-bit identical to a master soundtrack. with the DTS-HD Master Audio logo certification,
| Clock Rate Required* (MHz) |
Code Size - ROM (KB) |
Table Size - ROM (KB) | RAM** | I/O Buffer RAM | |
| DTS Core Decoder, 5.1 ch. (48 KHz) |
30 | 41 | 113 | 90 | 30 |
|
DTS-HD SDK (Master Audio, 96/24, ES, Hi Resolution, Core) for Blu-ray Disc, AVR (192 KHz, 5.1 ch)
|
175 (HiFi 2) 115 (HiFi EP) |
195 | 160 | 710 | 79 |
|
DTS Express SDK for Blu-ray Disc, AVR
|
63 | 50 | 20 | 55 | 9 |
| DTS Transcoder SDK for Blu-ray Disc, AVR (with 192 ->48 Khz downsampling) | 76 |
22 | 45 | 49 | 52 |
|
DTS Transcoder SDK for Blu-ray Disc, AVR (No downsampling, inputs Fs <=48 KHz)
|
61 | 22 | 45 | 49 | 15 |
| DTS Neo:6 SDK for Blu-ray Disc, AVR (48 Khz, 2ch->7ch) | 44 |
25 | 11 | 48 | 2.5 |
|
DTS Neo:6 48 KHz, 2ch->3ch (for ES Matrix)
|
30 | 25 | 11 | 48 | 2.5 |
| DTS-HD PP (DRC, Dialnorm, Downmixing, Primary-Secondary Mixing, Sec Upsampling) 47.7 | 48 | 70 | 15 | 29.5 | 19 |
* Average MHz required for single-cycle memory.
** RAM includes persistent, stack and scratch.