Zephyr Xport™ NEW!
Click here to download the data sheet.
Zephyr Xport utilizes a unique custom DSP-based modem architecture that allows use of an ordinary analog (POTS) telephone line for transmission of high-quality mono audio to an ISDN-connected Zephyr Xstream. Xport delivers incredible audio quality by using the highest fidelity low-bitrate coding method on Earth: Coding Technologies' revolutionary aacPlus, the combination of MPEG AAC (Advanced Audio Coding) and SBR (Spectral Band Replication). This method improves the efficiency of the codec by 30% over "plain" AAC (which itself is 30% more efficient than MPEG Layer 3) to deliver stunning reproduction of voice and music.
The result is that you'll enjoy jaw-dropping audio with rock-solid connections that conventional POTS codecs (restricted to analog on the studio side) can't provide. You never thought a POTS remote could sound this good! aacPlus* coding delivers stunning reproduction of voice and music, and our custom DSP-based modem extracts maximum bit rate from common phone lines to prevent audio loss from retraining.
And when ISDN is available... you're ready. When equipped with the available ISDN option, Zephyr Xport can connect over ISDN using Fraunhofer Labs' state-of-the-art Low Delay AAC (AAC-LD), which offers quality equivalent to MPEG Layer 3 with about 75% less delay - perfect for high-quality two-way remote broadcasts.
More Zephyr Xport features :
• Field-installable ISDN option makes Zephyr Xport a "grab-and-go" remote tool -- connect to POTS phone lines anywhere; use ISDN wherever available.
• Built-in DSP mixer with mic and line inputs.
• Selectable input dynamics processing by Omnia.
• Independent headphone, receive audio and monitor mixes.
• Easy-to-use controls with friendly menus designed for non-technical users.
• HTTP remote control using any standard Web browser.
• Ethernet port and DB-9 computer interface connections.
• Rugged go-anywhere metal chassis with shock-absorbing Bumpers.
• Fan-free Internal power supply.
Zephyr Xstream™ NEW!
Click here to download the data sheet.
Presenting Zephyr Xstream, the newest member of the famous Zephyr family of ISDN codecs. Following its groundbreaking marriage of MPEG Layer-3 and ISDN technology, followed by multi-brand compliant Layer-2, Zephyr Xstream introduces MPEG4 AAC-LD coding, the newest compression algorithm for better than Layer-3 audio quality with transmission times extremely low. Of course Zephyr Xstream is fully backward compatible with the original Zephyr.
AAC is the newest audio coding method selected by MPEG and is an international standard. It is a fully state-of-the-art audio compression tool kit that provides performance superior to any known approach at bit rates greater than 64 kbps and excellent performance relative to the alternatives at bit rates reaching as low as 16 kbps.
Zephyr Xstream is a rackmount-style transceiver specially designed for use with a single ISDN line or other low-bitrate transmission paths. Zephyr Xstream is perfect for broadcast or voiceover studios, permanent remote locations or wherever high-quality transmission of news, sports, music or production is needed.
Two-channel flexibility over a single ISDN circuit - or two synchronous links - can be used to transmit and receive 20kHz stereo audio to and from a single location, or two mono channels to and from separate locations.
• G.722, G.711 and MPEG Layer-3 & Layer-2 coding for compatibility.
• MPEG4 AAC coding for cd-quality audio.
• MPEG 4 AAC-LD coding for high audio quality with low delay.
• Built-in ISDN terminal adapter makes Telco connections simple. Works with US and EURO-ISDN connections.
• Analog and AES/EBU inputs and outputs with independent sample rate converters.
• 10Base-T Ethernet port allows remote control and streaming of MP3-coded audio over a LAN, WAN or the Internet. TCP/IP network connectivity also allows easy upgrade of system software via FTP.
• Front-panel headphone jack with level control.
• Auto-configuring 90-240 volt power supply.
• Optional V.35/X.21 interface available.
Zephyr™
This venerable unit, no longer manufactured, has been replaced by the more capable Zephyr Xstream. EDnet may occassionally have used or rental Zephyrs; call for more info. The Telos Zephyr has big buttons (for the over 40 crowd), a simple interface that even a Producer can operate, easy to read LCD display, and colorful LCD meters. Both MPEG Layer 2 and Layer 3 algorithms are supported. Layer 2 is the choice for mono voiceovers at 112 or 128Kbits per second, compatible with MPEG codecs from other manufacturers. Analog audio input/output is standard, optional AES/EBU interface is available. The built-in ISDN terminal adapter offers both a U interface with internal NT-1 and an S/T interface for use outside the USA. The simplicity and robustness of this equipment has made Zephyr a favorite with broadcasters, VO talent and VO studios across the US and around the world.
• Voiceover Favorite
• MPEG Layer II and Layer III, G.722
• Optional AES/EBU
• Simple front panel interface
• Both ISDN U and S/T Interfaces
• Big Buttons
• Retails for $5,690 (analog) or $6,230 (AES/EBU)
Simple to Operate!
FAQ’sWhen did ednet start its MPEG network service?
In mid 1993, ednet acquired Digital Patch Systems, a small audio network of about a dozen studios utilizing Switched 56 data lines. These studios had expressed the need for this capability in order to free themselves of the cumbersome process of using phone patches and the expensive alternative of using satellite transmission.
What is the audio compression standard used in these encoders and decoders?
MPEG Layer II compression is the most widely used standard around the world. ednet has built its MPEG-based networking system utilizing both the Telos Zephyr and the Musicam USA CDQ2000 and Prima series of codecs. Telos has worked hard to make its Zephyr totally compatible with these and other MPEG II codecs.
ednet is an authorized distributor for each of these fine manufacturers.
Are ednet and other MPEG-equipped studios using identical codecs?
Yes. Audio codecs such as the Telos and Musicam Prima series all produce totally compatible digital audio.
