| Audio Codec Comparison Table |
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Real-time pricing for Sandisk SDMX18R-004GW-A57 |
| Sansa Clip 4 GB MP3 Player White SanDisk SDMX18R-004GW-A57 SDMX18R004GWA57 Players & Accessories Usually ships in 24 hours |
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| VIA |
VIA manufactures both codecs and complete audio controllers. Their controllers (Envy24 series and Tremor) require an external codec, and usually, the motherboard manufacturer that chooses to use a VIA external controller also picks a VIA codec. Since VIA audio controllers got some popularity in the past, we are including their main specs on a separate table. VIA uses names starting with “VT” for their codecs. 
click to enlarge
Figure 4: VIA Envy24PT controller (on the right) using a VIA VT1618 codec (on the left)
Model | Channels | Input Resolution | Output Resolution | Input Max. Sampling Rate | Output Max. Sampling Rate | Input SNR | Output SNR | VT1612A | 2 | 20-bit | 20-bit | 48 kHz | 48 kHz | 93 dB | 88 dB | VT1613 | 2 | 18-bit | 18-bit | 48 kHz | 96 kHz | 85 dB | 82 dB | VT1616 | 5.1 | 20-bit | 20-bit | 48 kHz | 48 kHz | 85 dB | 85 dB | VT1617 | 5.1 | 20-bit | 20-bit | 48 kHz | 96 kHz | 85 dB | 95 dB | VT1618 | 7.1 | 20-bit | 20-bit | 48 kHz | 96 kHz | 86 dB | 83 dB | VT1702S | 4 | 24-bit | 24-bit | 192 KHz | 192 KHz | 98 dB | 100 dB | VT1705 | 5.1 | 24-bit | 24-bit | 192 KHz | 192 KHz | 93 dB | 100 dB | VT1705CE | 5.1 | 24-bit | 24-bit | 192 KHz | 192 KHz | 93 dB | 100 dB | VT1708 | 7.1 | 24-bit | 24-bit | 192 kHz | 192 kHz | 97 dB | 93 dB | VT1708A | 7.1 | 24-bit | 24-bit | 192 kHz | 192 kHz | 97 dB | 93 dB | VT1708B | 7.1 | 24-bit | 24-bit | 192 kHz | 192 kHz | 98 dB | 95 dB | VT1708S | 7.1 | 24-bit | 24-bit | 192 KHz | 192 KHz | 90 dB | 100 dB | VT1818S | 7.1 | 24-bit | 24-bit | 192 KHz | 192 KHz | 98 dB | 100 dB | VT1819S | 7.1 | 24-bit | 24-bit | 192 KHz | 192 KHz | 98 dB | 100 dB | VT1828S | 7.1 | 24-bit | 24-bit | 192 KHz | 192 KHz | 95 dB | 100 dB | VT2020 | 7.1+2 | 24-bit | 24-bit | 192 KHz | 192 KHz | NA | NA | VT2021 | 7.1+2 | 24-bit | 24-bit | 192 KHz | 192 KHz | 100 dB | 110 dB |
Model | Channels | Input Resolution | Output Resolution | Input Max. Sampling Rate | Output Max. Sampling Rate | Envy24 | 7.1 | 24-bit | 24-bit | 96 kHz | 96 kHz | Envy24HT | 7.1 | 24-bit | 24-bit | 192 kHz | 192 kHz | Envy24HT-S | 7.1 | 16-bit (AC97)
24-bit (I2S) | 16-bit (AC97)
24-bit (I2S) | 48 kHz (AC97)
192 kHz (I2S) | 48 kHz (AC97)
192 kHz (I2S) | Envy24GT | 5.1 | 16-bit (AC97)
24-bit (I2S) | 16-bit (AC97)
24-bit (I2S) | 96 kHz | 96 kHz | Envy24MT | 2 | 24-bit | 24-bit | 192 kHz | 192 kHz | Envy24PT | 7.1 | 16-bit (AC97)
24-bit (I2S) | 16-bit (AC97)
24-bit (I2S) | 48 kHz (AC97)
192 kHz (I2S) | 48 kHz (AC97)
192 kHz (I2S) | Tremor | 5.1 | 16-bit (AC97)
24-bit (I2S) | 16-bit (AC97)
24-bit (I2S) | 48 kHz (AC97)
192 kHz (I2S) | 48 kHz (AC97)
192 kHz (I2S) |
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