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--- hardware:sony_wh-ch720n [2024/07/11 23:34] – admin
+++ hardware:sony_wh-ch720n [2024/08/27 11:59] (aktuell) – vreutz
@@ Zeile 1: / Zeile 1: @@
-The Sony WH-CH720N headphones represent the latest iteration of Sony's wireless headphone line, succeeding the WH-CH710N model. These over-ear, Bluetooth headphones are equipped with Active Noise Canceling (ANC), Passthrough, virtual surround sound, and multi-device pairing capabilities. They support both Bluetooth and auxiliary (Aux) connections.
+====== Sony WH-CH720N ======
-**Purpose:**
-- Required for binaural headtracked audio in immersive VR and XR projects.
-- Selected for low latency, Passthrough feature, and advanced Bluetooth technology.
-**Initial Testing:**
+The Sony WH-CH720N headphones are over-ear buetooth headphones with Active Noise Canceling (ANC), Passthrough, virtual surround sound, and multi-device pairing capabilities. They support both Bluetooth and auxiliary (Aux) connections.
-- Issue: Microphone's low input level (only loud noises or direct contact were audible).
-- Solution: Software update from Sony requiring a reset.
-  - Reset Process: Press Bluetooth and middle button on the right side simultaneously until Bluetooth indicator blinks four times.
-**Pairing:**
+==== Purpose: ====
-- Press Bluetooth button for 5 seconds until the indicator light blinks.
+  * General purpose headphones
+  * Suitable for VR/XR/MR due to audio passthrough feature
+  * No latency in cable connection, 30-40ms latency via Bluetooth
-WH-CH720N supports full-duplex audio (simultaneous output and microphone input). A number of scenarios are possible:
+==== Quick Guide: ====
+  * Pairing: Press Bluetooth button for 5 seconds until the indicator light blinks.
+  * Get the latest software and drivers [[https://www.sony.de/electronics/support/wireless-headphones-bluetooth-headphones/wh-ch710n/downloads|here]]
-. **Bidirectionality using Cables:**
-   - Connect to a Y cable (one in, two outs) to the headphones with the provided AUX cable.
-   - Connect Y cable exits to a Headphone and Microphone to USB adapter.
-   - Result: Bidirectional sound in mono.
-. **Bidirectionality via Bluetooth:**
+----
-   - Works on a phone and a Mac.
+==== Full-duplex audio connection ====
+(simultaneous headphone and microphone use) is possible like so:
+. **full-duplex using minijack cable:**
+  *    Connect to a (TRS) Y-splitter-cable (one socket, two connectors) to the headphones with the provided AUX cable.
+  *    Connect Y-cable outs to the Headphone outs and Microphone inputs of [[https://amzn.eu/d/05VuzZop|USB audio adapter]].
+  *    NB: headphone audio will be mono
+. **full-duplex via Bluetooth:**
+   - Functional on iOS and MacOS (Versions? Software?)
    - Not possible on an RPi (still testing possibilities).
-. **Bluetooth and Cable (AUX) Simultaneously:**
+. **full-duplex combining Bluetooth and Cable (AUX):**
    - Bluetooth connection (in or out) not possible when headphones are already connected by aux cable (out or in).
-   - More details: [Link](https://helpguide.sony.net/mdr/2966/v1/de/contents/TP1000776886.html)
+   - More details [[https://helpguide.sony.net/mdr/2966/v1/de/contents/TP1000776886.html|here]]
-Here is a nice review with Isolation and Frequency Response curves:
-https://www.soundguys.com/sony-wh-ch720n-review-99305/
+----
+<WRAP center round info 100%>
+Below are Frequency Response and Isolation curves from [[https://www.soundguys.com/sony-wh-ch720n-review-99305/|this review.]]
-{{:hardware:sony_freqresponse_headphones.png?400|Sony WH-CH720N Headphones Frequency Response}}
+{{:hardware:sony_freqresponse_headphones.png?direct&600|Sony WH-CH720N Headphones Frequency Response}}
-{{:hardware:sony_freq_response_mic.png?400|Sony WH-CH720N Microphone Frequency Response}}
+{{:hardware:sony_freq_response_mic.png?direct&600|Sony WH-CH720N Microphone Frequency Response}}
-{{:hardware:sony_noise_isolation.png?400|Sony WH-CH720N Noise Isolation Response}}
+{{:hardware:sony_noise_isolation.png?direct&600|Sony WH-CH720N Noise Isolation Response}}
+</WRAP>
+<WRAP center round tip 60%>
+Use [[https://www.sony.de/electronics/headphones-connect-app|Sony Headphones Connect]] app for calibrating Frequency Response via EQ.
+</WRAP>
+----
+==== Images: ====
-**Images:**
  Headphones, case, and included cables:
-{{:hardware:img_3836.jpg?400|Sony WH-CH720N Carrying Case|}}
+{{:hardware:img_3836.jpg?600|}}
-{{:hardware:img_3838.jpg?400|}}
+{{:hardware:img_3838.jpg?600|}}
-{{:hardware:img_3839.jpg?400|}}
+{{:hardware:img_3839.jpg?600|}}
-{{:hardware:img_3840.jpg?400|}}
+{{:hardware:img_3840.jpg?600|}}
-{{:hardware:img_3841.jpg?400|}}
+{{:hardware:img_3841.jpg?600|}}
-{{:hardware:img_3844.jpg?400|}}
+{{:hardware:img_3844.jpg?600|}}
-For further information consult the manual:
-  * {{ :hardware:sony_wh-ch720n_manual_de.pdf |}}
+----
+<WRAP center round help 100%>
+**Troubleshooting:**
+  * Issue: Microphone's low input level (only loud noises or direct contact were audible).
+  * Solution: Software update from Sony requiring a reset.
+  * Reset Process: Press Bluetooth and middle button on the right side simultaneously until Bluetooth indicator blinks four times.
+</WRAP>
+==== Further information ====
+  * [[https://www.sony.de/electronics/support/wireless-headphones-bluetooth-headphones/wh-ch720n/manuals|German Manuals]]
+  * [[https://www.sony.com/electronics/support/wireless-headphones-bluetooth-headphones/wh-ch720n/manuals|English Manuals]]
+  * {{ :hardware:son_wh-ch720n_manual_de.pdf |}}
   * {{ :hardware:sony_wh-ch720n_manual_english.pdf |}}
-  * [[https://www.sony.de/electronics/support/wireless-headphones-bluetooth-headphones/wh-ch720n/manuals]]